Ford Mustang (1999-2004) Service Manual: Cleaning
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.

2. Cut an abrasive pad from maroon colored 3M Scotch Brite with the dimensions corresponding to the coupling size.

3. Assemble the pad to the tool.

4. Coat the abrasive pad with PAG Refrigerant Compressor Oil (R-134a Systems) or equivalent.
5. Roll the pad on the tool and install it in a variable speed drill motor.
6. CAUTION: Maintain low speed drill rotation when inserting or removing the cleaning tool to prevent axial scratches which may cause future leaks.
Polish for one minute at moderate speed (less than 1,500 rpm) or until the surface is clean and free of scratches or foreign material.

7. Clean the fitting with a lint-free cloth.
8. Inspect the surface for grooves or scratches. If grooves and scratches are still present, install a new component.
9. Clean the O-ring seal grooves with a 300 mm (12 inch) length of natural fiber string.
- Loop the string around the grooves and pull the string back and forth.

10. Remove any foreign material from the grooves with a lint-free cloth.
Disconnect
1. Remove the A/C tube lock coupling clip (19E746), if equipped.
2. Fit the special tool to the spring lock coupling.
3. Push the tool into the cage opening to release the female fitting from the ...
Connect
1. Install the A/C tube lock coupling spring.
2. Lubricate the inside of the coupling with PAG Refrigerant Compressor Oil
(R-134a Systems) or
equivalent.
3. CAUTION: Use only the new O-ring seals ...
Other materials:
NVH Condition and Symptom Categories
A good diagnostic process is a logical sequence of steps that lead to the
identification of a causal
system. Use the condition and symptom categories as follows:
Identify the operating condition that the vehicle is exhibiting.
Match the operating condition ...
Electronic Engine Controls (Description and Operation)
The electronic engine controls consist of the following:
powertrain control module (PCM)
throttle position (TP) sensor
idle air control (IAC) valve
engine coolant temperature (ECT) sensor
cylinder head temperature sensor
camshaft position ...
On-board Diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the
on-board diagnostics system (OBD-II). The OBD-II system protects
the environment by ensuring that your vehicle continues to meet ...
