Ford Mustang (1999-2004) Service Manual: Valve Spring Strength
Special Tool(s)
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Pressure Gauge, Valve/Clutch Spring 303-006 (TOOL-6513-DD) or equivalent |
1. Use a Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.
- Refer to the appropriate section in Group 303 for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate section in Group 303 for the procedure.

Valve Stem to Valve Guide Clearance
Special Tool(s)
Dial Indicator Gauge with
Holding Fixture
100-002 (TOOL-4201-C) or
equivalent
Clearance Gauge, Valve Guide
303-004 (TOOL-6505-E) or
equivalent
NOTE: Valve ...
Valve - Seat Inspection
Valve and Seat Refacing Measurements
CAUTION: After grinding valves or valve seats, check valve
clearance.
1. Check the valve head and seat.
Check valve angles.
Check margin width.
Refer t ...
Other materials:
Support Straps
Removal
WARNING: Do not smoke, carry lighted tobacco or an open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ignited, possibly resulting in personal injury.
WARNING: Fuel suppl ...
Exhaust Manifold to Exhaust Gas Recirculation (EGR)
Valve Tube - Mach I
Removal
1. Remove the air intake scoop. For additional information, refer to
Section.
2. Disconnect the exhaust gas recirculation (EGR) tube from the EGR valve.
3. With the vehicle in NEUTRAL, position it on a hoist.
4. Disconnect the EGR tube from th ...
Compressor Manifold and Tube Assembly - 3.8L
Material
Item
Specification
PAG Refrigerant Compressor
Oil (R-134a Systems)
F7AZ-19589-DA (Motorcraft YN-
12-C)
WSH-M1C231-
B
Removal and Installation
NOTE: Installation of a new suction accumulator is not required when
repairing the ...

