LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 1987 >> Town Car Base >> Repair and Diagnosis (Single Page) >> Suspension >> Electronic Suspension >> Suspension - Automatic Level Control >> Testing >> System Operation Check

System Operation Check

NOTE: Always cycle ignition on and off before starting tests to ensure vent solenoid and compressor "on times" are reset.
  1. Set vehicle ride height to specification. Briefly start and run engine. Apply a load of 300-350 lbs. (136-159 kg) to the rear of the vehicle. There should be a 7-13 second delay before the compressor turns on and rear of vehicle starts to rise.
  2. Vehicle should rise to within 1/2" (13 mm) of ride height set in step 1) by the time the compressor shuts off. If vehicle does not rise to within 1/2" (13 mm) of the unloaded specification, check trunk for overloading. If overloaded, remove load and retest.
  3. Remove load applied in step 1). There should be a 7-13 second delay before vehicle starts to lower. Vehicle should lower to within 1/2" (13 mm) of ride height specification. If not, refer to DIAGNOSTIC TESTING  in this article.
scientia non olet · About LEMON Manuals