lennykoch8
Ford F Cylinder Pressure Issue
Summary of the thread
A 2022 Ford F with a diesel engine is experiencing fluctuating cylinder pressure, increased fuel consumption, reduced power, and a check engine light. Initial checks on spark plugs, intake manifold, and timing belt did not resolve the issue. A suggestion was made to inspect the piston rings or crankshaft sensor, with a recommendation to perform a compression test. Ultimately, the problem was identified as a faulty sensor, which was fixed under warranty at no cost.
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4 comment(s)
lennykoch8 (community.author)
Piston rings, huh? That sounds expensive...How obvious was it when yours went? Any specific tests I can do myself before I start tearing everything apart and inevitably break something?
matthiasschwarz56
Well, mine wasn't completely gone-gone. Just enough to cause issues. Honestly, without proper tools, it's tricky to diagnose rings yourself. You could try a compression test, but honestly, with fluctuating cylinder pressure pointing directly to it, it's hard to imagine any other cause. Save yourself the possible frustration and take it to a workshop.
lennykoch8 (community.author)
Cheers! You were spot on. Turns out it was a consequential error from a faulty sensor. Workshop got it sorted. Cost me 0€ because it was still in warrenty. Thanks for the help!
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FORD
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F
matthiasschwarz56
Woah, sounds rough. I had something similar on my F, though mine wasn't quite THAT bad...Reduced engine power plus check engine light, yeah. Did you check your piston rings? Could be the culprit there, especially with that mileage, or even a crankshaft sensor acting up.