LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 1986 >> Aerostar Van Window, 2.8 S, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.8L Feedback Carburetor EEC IV Testing >> Quick Tests >> Timing Check

Timing Check

NOTE: If engine will not start, go to CIRCUIT TEST A  . If engine starts but stalls while testing, go to DIAGNOSIS BY SYMPTOM  TEST.
  1. Turn ignition off and wait 10 seconds. Verify that SELF-TEST has been activated. Restart engine and check timing while in SELF-TEST mode. You are allowed 2 minutes to check timing from the time the last code is displayed.
  2. Correct SELF-TEST timing equals base ignition timing (10° BTDC on all engines) plus 17-23° BTDC. If timing is not 27-33° BTDC, go to CIRCUIT TEST GG  . If timing is 27-33° BTDC, go to KEY ON/ENGINE RUNNING SELF-TEST  .
scientia non olet · About LEMON Manuals