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
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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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