have 2005 chev silverdo saying random mis fire 7 cliyered but change plug coil and wire still theref

Question

we changed coil plugs wire still saying miss fire

Answer 1

Hi there,

Here is a complete list of all possible causes for a misfire on cylinder 1 and 7.

P0307 CHEVROLET - Cylinder 7 Misfire Detected

Read more: https://www.autocodes.com/p0307_chevrolet.html