Vehicle Cold Soak Procedure
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
To carry out this procedure, proceed as follows:
- Test preparations include matching customer conditions (if known). If not known, document the test conditions: gear selection and engine rpm. Monitor the vibration or noise duration with a watch for up to 3 minutes.
- Park the vehicle where testing will occur. The vehicle must remain at or below the concern temperature (if known) for 6-8 hours.
- Before starting the engine, conduct a visual inspection under the hood.
- Turn the key on, but do not start the engine. Listen for the fuel pump, anti-lock brake system (ABS) and air suspension system noises.
- Start the engine.
- Isolate the vibration or noise by carefully listening. Move around the vehicle while listening to find the general location of the vibration or noise. Then, search for a more precise location by using a stethoscope or EngineEAR.
- Refer to IDLE NOISE/VIBRATION Symptom Chart to assist with the diagnosis.
CAUTION:
Never probe moving parts.