Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Perform this test when instructed during QUICK TEST or if directed by other test procedures. Only use this test to diagnose:

Ignition System
Fuel Injectors
Fuel Pressure
Engine Vacuum System
Evaporative Emission System
Fuel Vapor Storage Canister
EVAP Canister Purge Solenoid
Engine Mechanical Concern
Crankshaft Position (CKP) Sensor
Crankshaft Pulse Wheel
Powertrain Control Module (PCM)