2008 Chevrolet Silverado Engine

2008 CHEVROLET SILVERADO
180,000 MILES • 6.0L • V8 • 2WD • AUTOMATIC
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RODRIGUEZ
  • MEMBER
  • 2 POSTS
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..
Dec 5, 2015 at 5:58 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
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,
Dec 5, 2015 at 7:26 PM
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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?
Dec 5, 2015 at 7:46 PM
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