Back to 2010 Buick Enclave

2010 BUICK ENCLAVE

3.6L V6AWDAUTOMATICgas
6 active safety recalls on this vehicle — view recalls
Repairs0Labor505Torque2488Fluid9DTC941Battery0Maintenance0Recalls6
P0304high severityPowertrain

Cylinder 4 Misfire Detected

on 2010 Buick Enclave 3.6L V6 · AWD

What this code means

Misfire detected in cylinder 4.

Symptoms

  • Check Engine Light
  • Rough idle
  • Vibration
  • Loss of power

Common causes

  • Worn spark plug #4
  • Faulty ignition coil #4
  • Faulty injector #4
  • Low compression cyl 4

Diagnostic steps

  1. Swap coil #4
  2. Inspect spark plug #4
  3. Test injector #4
  4. Check compression

Repair notes

Swap coil to diagnose.

Other Powertrain codes on this vehicle

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