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TIL a 'no start' on a 6.7 Powerstroke can be a $5 sensor buried behind the turbo
Had a truck come in with a crank but no start, and the computer pointed to the high pressure fuel pump. Spent a full day pulling the pump and testing it, only to find it was fine. The real issue was a tiny exhaust back pressure sensor that had failed, which was tucked way up behind the turbocharger. Getting to it meant pulling the turbo and a bunch of other stuff, turning a simple diagnosis into a two day job. Anyone else run into a sensor causing that much trouble on these engines?
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lewis.gray5mo ago
Oh man, I saw a video about that exact sensor! It's crazy how such a small part can cause a no start and be such a pain to get to.
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wilson.olivia5mo ago
Ugh, that sounds like a nightmare. @lewis.gray is right, it's wild how one little sensor can cause so much work.
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carter.mila5mo ago
Right? I read a whole article about how common that is. @wilson.olivia, it's nuts how much time a tiny part can waste.
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wesleyflores3mo ago
Yeah, the crank position sensor on those 3.5L engines is notorious for that. @wilson.olivia, if you ever have to swap one out, a swivel socket and a stubby ratchet make all the difference getting to that bolt hidden behind the intake.
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