Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2002 Lincoln Town Car, 2002 Lincoln Navigator, 2002 Lincoln LS, 2002 Lincoln Continental, and 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.
This test is performed when directed here from one of the following symptoms in TROUBLE SHOOTING - NO CODES - EEC-V - GASOLINE & NGV article:
- Rough Or Rolling Idle, Stalls, Misses, Hesitation Or Surge
- Hard Start/Long Crank Or Erratic Start/Crank
- Slow Return To Idle
- Spark Knock
- Poor Fuel Economy
- High Oil Consumption
- Exhaust Smoke
Use this test to diagnose Positive Crankcase Ventilation (PCV) valve and related vacuum hoses.