2003 Chevrolet Suburban Missing running on 6 cylinders

Tiny
JLGREGO
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 187,000 MILES
Too. Truck in for tune up and was told that the engine was running on six. Cylinders they switched the two coils for those cylinders and nothing happened
Friday, September 26th, 2014 AT 5:22 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Misfires are extremely hard to diagnose so a pro should do this. It can be anything form an injector to basic engine problems. Check compression and fuel pressure with a gauge autoparts rent it
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Friday, September 26th, 2014 AT 6:27 AM

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