2008 Chevrolet Silverado Engine

Tiny
RODRIGUEZ
  • MEMBER
  • 2008 CHEVROLET SILVERADO
  • 6.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Truck was runing good till I got spark plugs changed it ran good for a week and start runing poorly I accelerate and truck jerks and wont go no faster. Had somebody check it and he said there was no spark on 4 of the spark plugs. We got a coil from other side and no spark but work on other side. And engine shakes alot I already changed the crank sensor thats it.
Saturday, December 5th, 2015 AT 5:58 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The first thing you need to determine is if that connector is receiving constant [power and pulsing ground trigger. You can do this with a noid light but a lab scope would be better. You have to be careful what you test this with because you can damage the computer. If you find there is no pulse to that coil, you could have a bad computer or a problem with the wiring in between.
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Saturday, December 5th, 2015 AT 7:26 PM
Tiny
RODRIGUEZ
  • MEMBER
  • 2 POSTS
We tryed it with a screw driver and a wire and didnt spark at all so you thing its the computer?
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Saturday, December 5th, 2015 AT 7:46 PM

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