Im no mechanic but im guessing cylinder 7 on this diagram is cylinder 7 just want to make sure before i do anything cause the computer said thats the one misfiring
Yes, driver's side rear. Did you get trouble code P0307? That's the code for a misfire on cylinder #7. If your truck has over 100,000 miles on it, I'd recommend a complete tune up. HTH. -Jim
Swap the spark plugs with another cylinder. If the misfire doesn't move, it might be the injector.
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