Will Not Start
Spark Available:
- Check ignition fuse (if equipped).
- Check fuel system fuse and fuel pump relay.
- Verify air intake system is unrestricted.
- Ensure fuel system pressure and volume are correct.
- Check cold start valve operation (engine cold).
- Check thermo time switch operation (engine cold).
- Check for poor quality or contaminated fuel.
- Check condensation (water) in fuel tank causing fuel pump to freeze (cold climate).
- Check exhaust system for restriction.
No Spark Available:
- Ensure secondary ignition system is in good condition.
- Ensure ignition coil supply voltage is correct.
- Ensure ignition coil primary resistance is correct.
- Ensure ignition coil secondary resistance is correct.
- Check hall sender operation.
- Check ignition control unit (if equipped).
- Ensure that ECU has correct voltage supply and is properly grounded.
- Check vehicle for aftermarket electronic equipment that may have been installed incorrectly.