Engine Loss of Power

CONDITION - ENGINE LOSS OF POWER

Possible Cause
1. Dirty or incorrectly gapped spark plugs.
2. Dirt or water in fuel system.
3. Faulty fuel pump.
4. Incorrect valve timing.
5. Blown cylinder head gasket.
6. Low compression.
7. Burned, warped or pitted valves.
8. Plugged or restricted exhaust system.
9. Faulty ignition cables.
10. Faulty coil.

Correction
1. Clean plugs and set gap, Refer to Powertrain Management/Ignition System/Specifications.
2. Clean system and replace fuel filter, Refer to Powertrain Management/Fuel Delivery and Air Induction/Fuel Filter/Service and Repair.
3. Install new fuel pump, Refer to Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Service and Repair.
4. Correct valve timing.
5. Install new cylinder head gasket.
6. Test compression of each cylinder.
7. Install new valves.
8. Install new parts, as necessary.
9. Replace any cracked or shorted cables.
10. Test and replace, as necessary, Refer to Powertrain Management/Ignition System/Testing and Inspection.