Preliminary Check
WARNING: This page is about a different car, the 1998 Mercury Grand Marquis and 1998 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Perform following preliminary checks:
- Visually inspect engine compartment to verify vacuum hoses and spark plug wires are properly routed and securely connected.
- Examine all wiring harnesses and connectors for damage.
- Ensure all ground connections are clean and tight.
- Ensure battery is fully charged.
- All accessories should be off during diagnosis.