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Appreciation post: finally fixed that P0300 code on a 2018 F-150 after 6 hours
I chased a random misfire on a customer's 2018 F-150 for what felt like forever. Turned out it was a tiny crack in the intake manifold letting unmetered air in, not even the smoke machine caught it at first. Took me from 9 AM to 3 PM on a Saturday before I finally spotted it with a propane torch. Anyone else ever spent a whole day on one code that should've been simple?
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faith_price710d ago
Drove myself crazy with a P0301 on a 2017 Focus ST once. Spent 5 hours swapping coils, plugs, cleaning injectors, all that. Turned out the damn PCV hose had a split underneath where you couldn't see it unless you bent it backwards. Fixed it with a 5 dollar piece of rubber hose from Autozone. Sometimes you gotta stop looking at the obvious stuff and start feeling around every vacuum line by hand.
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mary61410d ago
Been there before. Those hidden vacuum leaks are the worst.
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