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Showing results for tags '2014 silverado v8'.
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Hey guys I have a 2014 Silverado 5.3L. After a recent service at the dealer here in Hawaii my CEL came on. I took it back in it was a cylinder 7 misfire. The dealer replaced the wiring harness and the #7 coil pack. Brought the truck back home light came on again. Used a friends code reader and had a cylinder 5 misfire. last night replaced all the plugs and noticed the #5 wire came right off the plug when I removed the coil pack. Today truck is running rough and now I have another intermittent CEL between solid and flashing for a cylinder 4 misfire. Plugs looked fine but replaced them anyways. Anybody have any idea what is going on. This truck on has 65,000 miles on it and has never had any problems until after the service.