Troubleshooting Engine Problems: Hesitation

Engine Hesitation Diagnosis and Troubleshooting

Symptom:Engine hesitating. When you step on the gas, the engine seems to bog down or takes a second to respond. You may notice a general lack of power. You may notice the problem when the engine is hot or cold or when you are low on fuel.

Possible causes:

1. Dirty air filter.
   The Fix: Replace the air filter.
2. The spark plugs may be dirty or worn.
   The Fix: Replace spark plugs.
3. The ignition wires may be bad.
   The Fix: Inspect and replace ignition wires.
4. Ignition system problems.
   The Fix: Check distributor cap or rotor[/link">. Ignition module may be bad.
5. You may have water in the gasoline.
   The Fix: Drain the gas tank and flush with fresh gas and refill. (Generally not a DIY job)
6. If you have a carburetor (all 3 of you), you may have a bad accelerator pump or power circuit.
   The Fix: Replace accelerator pump or replace carburetor.
7. The fuel filter may be clogged.
   The Fix: Replace the fuel filter.
8. Your catalytic converter may be clogged.
   The Fix: Replace catalytic converter.

Return to Engine Troubleshooting Index