V8 misfire under load
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7th Gear
Joined: Sep 2025
Posts: 7
Likes: 2
From: Florida and Georgia
@Parky2012 nope those are some of the random codes these trucks get. The whole thing is weird I would expect a misfire code, my thought is what grade gas are you running. These things want 89 or 91 good quality gas.
yes I always use 91 and try to do shell etc. I have some gas enriched that I’ll try in it, and see if it makes a difference
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