Preliminary Checks
WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2003 Mercury Mountaineer, 2003 Lincoln Navigator, 2003 Lincoln Blackwood, 2003 Lincoln Aviator, and 2003 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If vehicle is a no-start, see NO-START/NORMAL CRANK
under SYMPTOMS in TROUBLE SHOOTING - NO CODES - EEC-V - CNG, FLEX-FUEL & GASOLINE article, or TEST A: NO-START
under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article.
Before diagnosing problems in ignition system, ensure following systems and components are in good condition and operating properly:
- Battery.
- Timing belt or chain.
- Fuel delivery and injection system.
- All wiring and vacuum connections.
- Air cleaner and ducts.
- Cooling system.