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Ford Raptor Forums - General Information
Ford Raptor Problems and Questions Forum
Performed TSB to relocate fuse 27, but truck still wont start
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<blockquote data-quote="BenBB" data-source="post: 1299341" data-attributes="member: 20185"><p>Not an expert or electrical engineer but...could the range on the DVOM maybe set to like milliohms or whatever? Thorough diagnostics BTW. Symptoms sound to me to point to fuel pump OR burnt wiring between that relay and the pump itself. So were it me I'd double check that resistance, try a jumper wire there first, pull the pump and attempt a bench test (which would likely result in some sort of redneck flame thrower), and if that checks out trace the entire length of the wiring harness (I've seen a few threads about that particular harness running along the LH frame rail getting pinched or pulled and there's a great how-to on here somewhere about relocating it, worth doing IMO). That fuse being THAT burnt may well point to melted wire somewhere. Good luck!</p></blockquote><p></p>
[QUOTE="BenBB, post: 1299341, member: 20185"] Not an expert or electrical engineer but...could the range on the DVOM maybe set to like milliohms or whatever? Thorough diagnostics BTW. Symptoms sound to me to point to fuel pump OR burnt wiring between that relay and the pump itself. So were it me I'd double check that resistance, try a jumper wire there first, pull the pump and attempt a bench test (which would likely result in some sort of redneck flame thrower), and if that checks out trace the entire length of the wiring harness (I've seen a few threads about that particular harness running along the LH frame rail getting pinched or pulled and there's a great how-to on here somewhere about relocating it, worth doing IMO). That fuse being THAT burnt may well point to melted wire somewhere. Good luck! [/QUOTE]
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Ford Raptor Forums - General Information
Ford Raptor Problems and Questions Forum
Performed TSB to relocate fuse 27, but truck still wont start
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