Preliminary Checks
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2001 Mercury Sable, 2001 Mercury Grand Marquis, 2001 Mercury Cougar, 2001 Lincoln Town Car, and 2001 Lincoln LS. 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 harness and vacuum connections.
- Check air cleaner and ducting.
- Check secondary ignition components.
- Check fuel delivery system.
- 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 cooling system.
- Check inertia fuel shutoff switch.
- Check for blown head gasket (liquid in cylinder).
- Check for improperly installed electronic equipment such as anti-theft system, CB radio, cellular telephone or stereo.