Preliminary Checks
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, 2003 Lincoln Town Car, and 2003 Lincoln LS. 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
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.