Ford Mustang (1999-2004) Service Manual: Diagnosis By Symptom

Special Tool(s)

	Transmission Fluid Pressure Gauge 307-004 (T57L-77820-A)
	Air Test Plate, Transmission 307-246 (T92P-7006-A)
	Breakout Box, EEC-V Control System 418-049 (T94L-50-EEC-V) or equivalent
	MLP-TR Cable 418-F107 (007-00111) or equivalent
	Worldwide Diagnostic System (WDS) 418-F224 New Generation STAR (NGS) Tester 418-F052 or equivalent scan tool
	Transmission Tester 307-F016 (007-00130) or equivalent
	Trans Tester TR/MLP Overlay and Manual 007-00131 or equivalent
	73 III Automotive Meter 105-R0057 or equivalent
	UV Leak Detector Kit 164-R0756 or equivalent

The Diagnosis by Symptom charts give the technician diagnostic information, direction, and suggest possible components, using a symptom as a starting point.

The Diagnosis by Symptom charts are divided into two categories: Electrical Routines, indicated by 200 series numbers, and Hydraulic/Mechanical Routines, indicated by 300 series numbers. The Electrical Routines list the possible electrical components that could cause or contribute to the symptom described. The Hydraulic/Mechanical Routines list the possible hydraulic or mechanical components that could cause or contribute to the symptom described.

Diagnosis by Symptom Chart Directions

1. Using the Diagnosis by Symptom Index, select the Concern/Symptom that best describes the condition.

2. Refer to the routine indicated in the Diagnosis by Symptom Index.

3. Always begin diagnosis of a symptom with:

a. preliminary inspections.

b. verifications of condition.

c. checking the fluid levels.

d. carrying out other test procedures as directed.

4. NOTE: Not all concerns and conditions with electrical components will set a diagnostic trouble code (DTC). Be aware that the components listed may still be the cause. Verify correct function of these components prior to proceeding to the Hydraulic/Mechanical Routine listed.

Begin with the Electrical Routine, if indicated. Follow the reference or action required statements. Always carry out the on-board diagnostic tests as required. Never skip steps.

Repair as required. If the concern is still present after electrical diagnosis, then proceed to the Hydraulic/Mechanical Routine listed.

5. The Hydraulic/Mechanical Routines list possible hydraulic or mechanical components that could cause the concern. These components are listed in the removal sequence and by most probable cause. All components listed must be inspected to ensure correct repair.

Diagnosis by Symptom Index

Diagnosis by Symptom Index

a - Carry out electrical routine first.

Diagnostic Routines

Engagement Concern: No Forward

Possible Component	Reference/Action
201 - ELECTRICAL ROUTINE
No Electrical Concerns
301 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level. Inspect as under Fluid Condition Check; refer to Verification of Condition.
Condition
Shift Linkage	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify the digital transmission range (TR) sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Damaged or incorrectly adjusted
Incorrect Pressures	Check pressure at line and forward clutch tap. Refer to Line Pressure Chart for specification. If pressures are low, check the following components: oil filter and seal assembly, main controls, pump assembly, forward clutch assembly.
Low forward clutch pressure, low line pressure
Fluid Filter and Seal Assembly
Plugged, damaged	Install a new filter and seal assembly.
Filter seal damaged	Install a new filter and seal assembly.
Main Controls
3-4 shift valve, main regulator valve, manual valve - stuck, damaged	Inspect for damage. Repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications.
Gaskets damaged	Inspect gaskets for damage and install a new gasket.
2-3 accumulator and seals damaged	Inspect piston, seals and bore for damage. Repair as required. Inspect the diameter for wear.
Pressure regulator valve
Pump Assembly
Bolts not tightened to specifications	Tighten bolts to specifications.
Porosity/cross leaks/ball missing or leaking, plugged hole	Inspect for porosity and leaks. Repair as required.
No. 3 and No. 4 seal rings damaged	Inspect seals for damage. Repair as required. Inspect for damage and install a new gasket.
Gaskets damaged
Forward Clutch Assembly
Seals, piston damaged	Inspect seals for damage. Repair as required.
Check balls damaged, missing, mislocated, not seating correctly	Inspect for mislocation, poor seating, damage. Install a new cylinder as required. Check for abnormal wear, damage. Repair as required.
Friction elements damaged or worn
One-Way Clutch Assembly (Planetary)	Inspect for damage. Repair as required.
Worn, damaged or assembled incorrectly	Inspect for damage. Repair as required.
Output Shaft	Inspect for damage. Install new components as required.
Damaged	Inspect for damage. Install new components as required.

Engagement Concern: No Reverse

Possible Component	Reference/Action
202 - ELECTRICAL ROUTINE
No Electrical Concerns
302 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level. Inspect as under Fluid Condition Check; refer to Verification of Condition.
Condition
Shift Linkage	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify the digital transmission range (TR) sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Damaged or incorrectly adjusted
Incorrect Pressures	Check pressure at line and forward clutch tap. Refer to Line Pressure Chart for specification. If pressures are low, check the following components: oil filter and seal assembly, main controls, pump assembly, forward clutch assembly.
Low forward clutch pressure, low line pressure
Fluid Filter and Seal Assembly
Plugged, damaged	Install a new filter and seal assembly.
Main Controls
No. 6 shuttle ball, manual valve, main regulator valve, 1-2 accumulator seals stuck or damaged	Inspect for damage. Repair as required.
Loose bolts	Tighten bolts to specifications. Inspect gaskets for damage and install a new gasket.
Gasket damaged
Low/Reverse Servo
Seals (piston and cover) damaged	Inspect for damage. Repair as required.
Servo cover retaining ring damaged
Anchor pins (case) damaged
Pump Assembly
Loose bolts	Tighten bolts to specifications.
Porosity/cross leaks/ball missing or leaking, plugged hole	Inspect for porosity and leaks. Repair as required.
No. 1 and No. 2 seal rings damaged	Inspect seals for damage. Repair as required. Inspect for damage and install a new gasket.
Gaskets damaged
Reverse Clutch Assembly
Seals, piston damaged	Inspect seals for damage. Repair as required.
Check ball missing or damaged
Friction elements damaged or worn
Low/Reverse Band	Inspect for damage. Repair as required.
Band, servo, anchor pins damaged or worn	Inspect for damage. Repair as required.

Engagement Concern: Harsh Reverse

Possible Component	Reference/Action
203 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test; refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Carry out engagement test, EPC test and Go To Pinpoint Test B or Go To Pinpoint Test D . Check idle speed. Repair as required. Clear DTCs, road test and repeat Self- Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, TFT sensor, EPC solenoid
303 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Engine Driveline
Looseness in the driveshaft, U-joints or the engine mounts	Repair as required.
Shift Linkage	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify the digital transmission range (TR) sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Damaged or incorrectly adjusted
Incorrect Pressures	Check pressure at line and forward clutch tap. Refer to Line Pressure Chart for specification. If pressures are low, check the following components: oil filter and seal assembly, main controls, pump assembly, forward clutch assembly.
High line pressure, high EPC pressure
Fluid Filter and Seal Assembly
Plugged, damaged	Install a new filter and seal assembly.
Filter seal damaged	Install a new filter and seal assembly.
Main Controls
No. 6 shuttle ball, No. 5 check ball, manual valve, main regulator valve stuck, damaged or missing	Inspect for damage. Repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications.
Gaskets damaged	Inspect gaskets for damage and install a new gasket. Inspect for damage, contamination. Carry out EPC test in Routine No. 203. Repair as required.
EPC solenoid stuck or damaged
Low Reverse Servo
Seals (piston and cover) damaged	Inspect for damage. Repair as required.
Servo cover retaining ring assembled incorrectly
Anchor pins (case) damaged
Pump Assembly
Bolts not tightened to specifications	Tighten bolts to specifications.
Porosity/cross leaks	Inspect pump assembly. Install new as required.
No. 1 and No. 2 seal rings damaged	Inspect seals for damage. Repair as required. Inspect for damage and install a new gasket.
Gaskets damaged
Reverse Clutch Assembly
Seals, piston damaged	Inspect seals for damage. Repair as required.
Check ball missing or damaged
Friction elements damaged or worn
Low Reverse Band	Inspect for damage. Repair as required.
Band, servo, anchor pin damaged or worn	Inspect for damage. Repair as required.

Engagement Concern: Harsh Forward

Possible Component	Reference/Action
204 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test; refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Carry out engagement test, EPC test and Go To Pinpoint Test B or Go To Pinpoint Test D . Check idle speed. Repair as required. Clear DTCs, road test and repeat Self- Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, TFT sensor, EPC solenoid
304 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Engine Driveline
Looseness in the driveshaft, U-joints or the engine mounts	Repair as required.
Incorrect Pressures	Check pressure at line and forward clutch tap. Refer to Line Pressure Chart for specification. If pressures are low, check the following components: oil filter and seal assembly, main controls, pump assembly, forward clutch assembly.
High forward clutch pressure, high line pressure, high EPC pressure
Main Controls
Main regulator valve stuck, damaged	Inspect and repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications.
Gaskets damaged	Inspect gaskets for damage and install a new gasket. Inspect for damage, contamination. Carry out EPC test in Routine No. 204. Repair as required.
EPC solenoid stuck or damaged
Case
2-3 accumulator seal/retainer stuck, damaged	Inspect for damage. Repair as required.
Pump Assembly
Bolts not tightened to specifications	Tighten bolts to specifications.
Porosity/cross leaks	Inspect pump assembly. Install new as required.
Gaskets damaged	Inspect for porosity/leaks. Install a new pump as required. Inspect for damage and install a new gasket.
Forward Clutch Assembly
Check ball missing or damaged	Inspect for mislocation, poor seating, damage. Install a new forward clutch cylinder.
Friction elements damaged or worn	Inspect for damage. Repair as required.
Forward clutch wave spring damaged	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Forward clutch return spring damaged

Engagement Concern: Delayed/Soft Reverse

Possible Component	Reference/Action
205 - ELECTRICAL ROUTINE
	No Electrical Concerns
305 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level. Inspect condition of fluid.
Condition	Adjust fluid to correct level. Inspect condition of fluid.
Shift Linkage	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify the digital transmission range (TR) sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Damaged or incorrectly adjusted
Incorrect Pressures	Check pressure at line tap; refer to Line Pressure Chart for specifications. If pressures are low, check the following components: main controls, pump assembly, reverse clutch assembly, reverse servo.
Low reverse clutch pressure, low reverse band pressure, low line pressure
Fluid Filter and Seal Assembly
Plugged, damaged	Install a new filter and seal assembly. Filter seal damaged
	Install a new filter and seal assembly. Filter seal damaged
Main Controls
No. 6 shuttle ball, manual valve, main regulator valve stuck or damaged	Inspect for damage. Repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications. Inspect for damage and install a new gasket.
Gaskets damaged
Case	Inspect for damage. Repair as required.
1-2 accumulator seals stuck or damaged	Inspect for damage. Repair as required.
Low Reverse Servo
Seals (piston and cover) damaged	Inspect for damage. Repair as required.
Servo cover retaining ring assembled incorrectly	Inspect for damage. Repair as required.
Pump Assembly
Bolts not tightened to specifications	Tighten bolts to specifications.
Porosity/cross leaks/ball missing or leaking	Inspect pump assembly. Install new as required.
No. 1 and No. 2 seal rings damaged	Inspect seals for damage. Repair as required. Inspect for damage and install a new gasket.
Gaskets damaged
Reverse Clutch Assembly
Seals, piston damaged	Inspect seals for damage. Repair as required.
Check ball missing or damaged
Friction elements damaged or worn
Low Reverse Band	Inspect for damage. Repair as required.
Damaged, worn	Inspect for damage. Repair as required.

Engagement Concern: Delayed/Soft Forward

Possible Component	Reference/Action
206 - ELECTRICAL ROUTINE
	No Electrical Concerns
306 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level. Inspect condition of fluid.
Condition	Adjust fluid to correct level. Inspect condition of fluid.
Shift Linkage	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify the digital transmission range (TR) sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Damaged or incorrectly adjusted
Incorrect Pressures	Check pressure at line, forward clutch and EPC taps; refer to Line Pressure Chart for specifications. If pressures are low, check the following components: oil filter and seal assembly, main controls and pump assembly.
Low forward clutch pressure, low line pressure, low EPC pressure
Fluid Filter and Seal Assembly
Plugged, damaged	Install a new filter and seal assembly.
Filter seal damaged	Install a new filter and seal assembly.
Main Controls
3-4 shift valve, main regulator valve stuck or damaged	Inspect and repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications. Inspect for damage and repair as required.
Gaskets damaged
Case	Inspect for damage. Repair as required.
2-3 or 1-2 accumulator, bore damaged or stuck	Inspect for damage. Repair as required.
Low Reverse Servo
Seals (piston and cover) damaged	Inspect for damage. Repair as required.
Servo cover retaining ring assembled incorrectly	Inspect for damage. Repair as required.
Pump Assembly
Bolts not tightened to specifications	Tighten bolts to specifications.
Porosity/cross leaks	Inspect pump assembly. Repair as required.
No. 3 and No. 4 seal rings damaged	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Gaskets damaged
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as required
Check ball missing or damaged	Inspect for mislocation, poor seating, damage. Install a new cylinder as required. Check for damage. Repair as required.
Friction elements damaged or worn

Shift Concerns: Some/All Shifts Missing

Possible Component	Reference/Action
210 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test; refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test A , Go To Pinpoint Test C or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, output shaft speed (OSS) sensor, digital TR sensor
303 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Shift Linkage, Digital TR Sensor	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary. Refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 220/320 Shift 2-3, Routine 221/321 Shift 3-4, Routine 222/322 Shift 4-3, Routine 223/323 Shift 3-2, Routine 224/324 Shift 2-1, Routine 225/325
Damaged or incorrectly adjusted

Shift Concerns: Timing Concerns - Early/Late

Possible Component	Reference/Action
211 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test A , Go To Pinpoint Test C or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, EPC solenoid, TFT sensor, OSS
311 - HYDRAULIC/MECHANICAL ROUTINE
Other
Tire size change, axle ratio change	Verify vehicle has original equipment. Refer to Certification Label and Safety Standard Certification Label. Changes in tire size or axle ratio will affect shift timing.
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Powertrain Control System
Engine driveability concerns	Refer to Routine 253.
Incorrect Pressures	Check pressure at line and EPC taps; refer to Line Pressure Chart for specifications. If not OK, check the main controls. If OK, refer to the shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
Line pressure, EPC pressure
Main Controls
EPC solenoid, stuck or damaged hydraulically or mechanically	Inspect for damage, contamination. Carry out EPC tests in Routine No. 211. Repair as required.
Valves, accumulators, seals stuck or damaged or assembled incorrectly	Inspect for damage. Repair as required.
Gaskets damaged	Inspect for damage and install a new gasket. Clean or install a new screen.
Solenoid screen blocked or damaged

Shift Concerns: Timing Concerns - Erratic/Hunting

Possible Component	Reference/Action
212 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis. Go To Pinpoint Test A , Go To Pinpoint Test C or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, torque converter clutch (TCC) solenoid, digital TR sensor, output shaft speed (OSS)
312 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level. Inspect condition of fluid.
Condition	Adjust fluid to correct level. Inspect condition of fluid.
Main Controls
Valves, accumulators, seals, assembled wrong, stuck or damaged	Inspect for damage. Repair as required.
Solenoid screen blocked or damaged	Inspect gaskets for damage and install a new gasket. Clean or install a new screen.
Gaskets damaged
Torque Converter Clutch	Refer to Torque Converter Operation Concerns: Cycling/Shudder/Chatter Hydraulic/Mechanical Routine 342.
Torque converter
Specific Shifts	Refer to the following shift routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325

Shift Concerns: Feel - Soft/Slipping

Possible Component	Reference/Action
213 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test D or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test. Refer to Routine 253.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS
Engine driveability concerns
313 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Incorrect Pressures	Check pressures at line and EPC taps; refer to Line Pressure Chart for specifications. If pressures are low or all shifts are soft/slipping, go to main controls. If pressures are OK and a specific shift is soft/slipping, refer to the following routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
Low line pressure, low EPC pressure
Main Controls
Main regulator valve, overdrive servo regulator valve stuck, damaged or assembled incorrectly	Inspect for damage. Repair as required. Inspect for damage and contamination. Carry out EPC tests in Routine 213. Repair as required.
EPC solenoid stuck or damaged
Case
1-2 accumulator stuck or damaged	Inspect for damage. Repair as required.
Filter and Seal Assembly	Inspect for damage. Install a new filter as required. Inspect for damage. Repair as required.
Filter plugged, damaged
Seal damaged or cut

Shift Concerns: Feel - Harsh

Possible Component	Reference/Action
214 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test D or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test. Refer to Routine 253.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS
Engine driveability concerns
314 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust fluid to correct level.
Condition	Inspect condition of fluid.
Incorrect Pressures	Check pressures at line and EPC taps; refer to Line Pressure Chart for specifications. If pressures are low or all shifts are soft/slipping, go to main controls. If pressures are OK and a specific shift is soft/slipping, refer to the following routine(s) for further diagnosis: Shift 1-2, Routine 320 Shift 2-3, Routine 321 Shift 3-4, Routine 322 Shift 4-3, Routine 323 Shift 3-2, Routine 324 Shift 2-1, Routine 325
High line pressure, high EPC pressure
Main Controls
Main regulator valve, overdrive servo regulator valve stuck, damaged or assembled incorrectly	Inspect for damage. Repair as required. Inspect for damage or contamination. Carry out EPC tests in Routine 214. Repair as required.
EPC solenoid stuck or damaged

Shift Concerns: No 1st Gear, Engages In Higher Gear

Possible Component	Reference/Action
215 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test A or Go To Pinpoint Test C . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, digital transmission range TR sensor
315 - HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Digital TR Sensor
Damaged or incorrectly adjusted	Inspect and repair as required. Verify transmission shift cable adjustment. Refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted.
Incorrect Pressures	Check for which pressures are on and refer to Band/Clutch Application Chart 601 and corresponding routines. 324, 301 325, 301 323, 324, 325, 301 324 325 323, 324, 325 Refer to appropriate mechanical diagnosis.
Low reverse clutch pressure, low reverse band pressure, low line pressure Forward Off, Intermediate Off, Direct X Forward Off, Intermediate X, Direct Off Forward Off, Intermediate X, Direct X Forward X, Intermediate Off, Direct X Forward X, Intermediate X, Direct Off Forward X, Intermediate X, Direct X Forward X, Intermediate Off, Direct Off
Mechanical
Bands, clutches or seals damaged or worn	Refer to Transmission Disassembly and Assembly.

X = pressure applied

Shift Concerns: No Manual 1st Gear

Possible Component	Reference/Action
216 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test A or Go To Pinpoint Test C . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, digital TR sensor
316 - HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Cable, Digital TR Sensor
Damaged or incorrectly adjusted	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Incorrect Pressures	Check pressure at line and EPC pressure taps; refer to Line Pressure Chart for specifications. If pressures are low, check the following components: oil filter and seal assembly, main controls, reverse clutch assembly and reverse servo assembly.
Low reverse clutch pressure, low reverse band pressure, low line pressure, low EPC pressure
Main Controls
No. 6 shuttle ball, manual valve, main regulator valve, low servo modulator valve stuck, damaged or assembled incorrectly	Inspect for damage. Repair as required. Tighten bolts to specifications.
Bolts not tightened to specifications
Fluid Filter and Seal Assembly
Plugged or damaged	Install a new filter and seal assembly.
Low Reverse Servo	Inspect for damage. Repair as required.
Seals (piston and cover) damaged	Inspect for damage. Repair as required.

Shift Concerns: No Manual 2nd Gear

Possible Component	Reference/Action
217 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test A or Go To Pinpoint Test C . Repair as required. Clear DTCs, road test and repeat Self-Test.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, digital TR sensor
317 - HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Cable, Digital TR Sensor
Damaged or incorrectly adjusted	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Main Controls
3-4 shift valve, 1-2 and 2-3 shift valve, 3-4 capacity modulator valve stuck, damaged or assembled incorrectly	Inspect for damage. Repair as required. Tighten bolts to specifications.
Bolts not tightened to specifications

Shift Concerns: 1-2 Shift (Automatic)

Possible Component	Reference/Action
220 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test D or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test. Refer to Routine 253.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS
Engine driveability concerns
320 - HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Digital TR Sensor
Damaged or incorrectly adjusted	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Incorrect Pressures	Check pressure at line and intermediate clutch taps; see the line pressure chart for specifications. If not OK, check the main controls.
Intermediate clutch pressure, line pressure
Main Controls
1-2 shift valve, stuck or damaged	Inspect for damage. Repair as required. Tighten bolts to specification.
Bolts not tightened to specifications
Shift solenoid SSA malfunction	Activate solenoid using scan tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
Gasket damaged	Inspect for damage and install a new gasket. Inspect for damage. Repair as required.
No. 8 ball not seating
Case
1-2 accumulator stuck or damaged	Inspect for damage. Repair as required.
Pump	Inspect for porosity/leaks, balls missing. Install a new pump as required. Inspect for damage and install a new gasket.
Porosity/cross leaks, balls missing, damaged or leaking
Gasket damaged
Intermediate Clutch Assembly	Inspect for damage. Repair as required. Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Seals damaged
Piston damaged Friction elements damaged or worn
Intermediate One-Way Clutch Assembly	Inspect for damage. Repair as required.
Not holding or damaged
Planetary One-Way Clutch Assembly
Not overrunning or damaged	Inspect for damage. Repair as required.
1-2 Accumulator	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Damaged accumulator piston
Springs damaged or broken
Case bore scored	Inspect for damage. Repair as required.

Shift Concerns: 2-3 Shift (Automatic)

Possible Component	Reference/Action
221 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Self-Test. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis and testing of the Powertrain Control System. Go To Pinpoint Test D or Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and repeat Self-Test. Refer to Routine 253.
Electrical inputs/outputs, vehicle wiring harnesses, PCM, EPC solenoid, OSS
Engine driveability concerns
321 - HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Digital TR Sensor
Damaged or incorrectly adjusted	Inspect and repair as required. Verify transmission shift cable adjustment; refer to Section. Adjust transmission shift cable as necessary. After repairing transmission shift cable, verify that the digital TR sensor is correctly adjusted. Adjust the digital TR sensor as necessary.
Incorrect Pressures	Check pressure at line and intermediate clutch taps; see the line pressure chart for specifications. If not OK, check the main controls.
Intermediate clutch pressure, line pressure
Main Controls
2-3 shift valve, check ball No. 9 or No. 3, solenoid pressure regulator valve, damaged or assembled incorrectly	Inspect for damage. Repair as required. Tighten bolts to specification.
Bolts not tightened to specifications
Shift solenoid SSB malfunction	Activate solenoid using scan tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
Gasket damaged	Inspect for damage and install a new gasket. Inspect for damage. Repair as required.
Output shaft seals damaged or cup plug leaking or missing
Case
Output shaft rear seals leaking or damaged	Inspect for damage. Repair as required. Inspect case for damaged seal area. If damaged, install a new case.
Intermediate One-Way Clutch Assembly	Inspect for damage. Repair as required.
Not overrunning or damaged
Output Shaft
Seal rings damaged	Inspect for damage. Repair as required.
Cup plug damaged or missing	Inspect for damage. Repair as required.
Direct Clutch Assembly	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Seals or piston damaged
Friction elements worn or damaged
Check ball not seating	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Return spring assembly damaged
2-3 Accumulator	Inspect for damage. Repair as required. Inspect for damage. Repair as required.
Damaged accumulator piston
Springs damaged or broken
Case bore scored	Inspect for damage. Repair as required.

Shift Concerns: 3-4 Shift (Automatic)

Shift Concerns: 3-4 Shift (Automatic)

Shift Concerns: 4-3 Shift (Automatic)

Shift Concerns: 4-3 Shift (Automatic)

Shift Concerns: 3-2 Shift (Automatic)

Shift Concerns: 3-2 Shift (Automatic)

Shift Concerns: 2-1 Shift (Automatic)

Shift Concerns: 2-1 Shift (Automatic)

Torque Converter Clutch Operation Concerns: No Apply

Torque Converter Clutch Operation Concerns: No Apply

Torque Converter Clutch Operation Concerns: Always Applied/Stalls Vehicle

Torque Converter Clutch Operation Concerns: Always Applied/Stalls Vehicle

Torque Converter Clutch Operation Concerns: Cycling/Shudder/Chatter

Torque Converter Clutch Operation Concerns: Cycling/Shudder/Chatter

Other Concerns: No Engine Braking In Manual 2nd Or Manual 1st Position

Other Concerns: No Engine Braking In Manual 2nd Or Manual 1st Position

Other Concerns: Shift Lever Efforts High

Other Concerns: Shift Lever Efforts High

Other Concerns: External Leaks

Other Concerns: External Leaks

Other Concerns: Poor Vehicle Performance

Other Concerns: Poor Vehicle Performance

Other Concerns: Noise/Vibration - Forward Or Reverse

Other Concerns: Noise/Vibration - Forward Or Reverse

Other Concerns: Engine Will Not Crank

Other Concerns: Engine Will Not Crank

Other Concerns: No Park (P) Range

Other Concerns: No Park (P) Range

Other Concerns: Overheating

Other Concerns: Overheating

Transmission Fluid Cooler

CAUTION: Whenever a transmission has been disassembled to install new parts, the cooler bypass valve (CBV), all transmission fluid coolers (in tank and auxiliary) and transmission fluid cooler l ...

Transmission Fluid Cooler - Backflushing and Cleaning

1. CAUTION: Do not use any supplemental transmission fluid additives or cleaning agents. The use of these products could cause internal transmission components to fail; this will effect the oper ...

Other materials:

Knock
Knock, which can occur on all driving phases, has several causes including damaged teeth or gearset. In most cases, one of the following conditions will occur: 1. A gear tooth damaged on the drive side is a common cause of the knock. This can usually be cor ...

Using MyKey with remote start systems
MyKey is not compatible with non-Ford-approved aftermarket remote start systems. If you choose to install a remote start system, please see your Ford authorized dealer for a Ford-approved remote start system. Vehicles With Ford-approved Aftermarket Remote Sta ...

Inspection and Verification
1. The keyless entry system is a generic electronic module (GEM). 2. Verify the customer concern by using the remote transmitters to operate the keyless entry system. 3. Visually inspect for the following obvious signs of mechanical and electrica ...