Preliminary Checks
WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2002 Mercury Mountaineer, 2002 Lincoln Navigator, 2002 Lincoln Blackwood, 2002 Ford Windstar, and 2002 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Ensure following systems and components are in good condition and operating properly before diagnosing problems in fuel injection system:
- Check battery and charging system condition.
- Check all wiring and vacuum connections.
- Check air cleaner and ducting.
- Check state of tune.
- Check fuel delivery system.
- Check cooling system.
- Check inertia fuel shutoff switch.
- Check for blown head gasket (liquid in cylinder).
- Check fuel tank contents and fuel gauge accuracy.
- Check for dirt, water or other contamination in fuel.
- Check fuel lines and fittings for leaks.
- Check fuel delivery system for proper pressure and volume.
- Check for inoperative fuel injectors.
- Check for improperly installed electronic equipment such as anti-theft system, CB radio, cellular telephone or stereo.