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Power Strokes
7.3 Aftermarket
raw fuel coming from manifold
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[QUOTE="TARM, post: 70034, member: 578"] That was also why I put it could be the pump. That does make sense the way you put it TT. The FL at least the one I had has no reset button. Now maybe its like the Bosch pumps and has a thermal overload sensor switch that cuts flow WAY back. On my Bosch 044 I am running it flows 80gph@75psi but if that thermal overload switch trips its down to 8gph until it gets back down to a temp that will allow it to reset. Even with very light driving that would certainly cause fuel pressure to go WAY down. The FL may only cut it back 50% or some thing though or on a scale based on temp. That would certianly explain his symptoms. Then one time if he resets the reg pressure while its cut back and then lets it cool and takes it out and checks it now back at full power its going to be spiking high pressure for sure. Then the other way around it will be way low. Glad my pump is stilling it a container of cool diesel fuel at all times now. [/QUOTE]
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