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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

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