Idle pressure/guage - Ford Powerstroke Diesel Forum

 
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post #1 of 3 Old 03-04-2008, 10:11 AM Thread Starter
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Idle pressure/guage

Installed a 2nd fuel pressure guage at the shreader valve today thinking the first one I ordered was faulty since it read only 12 psi out of a 100 at idle. I ordered another 100 psi FPG from JEGS and it only reads 16 psi at idle. What baffles me is the truck runs good and idles good. Some time ago I cracked the fpr block trying to tighten the vacuum switch to keep it from leaking and JB Welded it, no leaks. I`m wondering if I lost something in the fpr block when I had it off. I made sure the little ball was behind the screen.. Did the BB trick so I wanted to check the pressure. I should have 65/70 right? Anyone know where I should start to check this out to increase the fuel pressure? May need a new FPR $485.00 at Ford. My guide says it is set at 40 psi I wonder if I could set it somehow? TIA

97 F-350, 7.3 psd, xlt, limited edition, obs, dually, E40d at, 410 r axle, reg. cab, 8ft bed, 145000 miles, DIY Tymar intake (napa filter) CCV mod. fpr bb mod, HPX crossover pipe, SS Bully steps, Reese Fifth wheel hitch, CB Radio, 3" DP /4" back w/cat delete and 4" flow-thru muffler w/5" tip.

Last edited by Triflex; 03-04-2008 at 11:38 AM.
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post #2 of 3 Old 03-04-2008, 01:10 PM
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I see 85 psi at most when I floor it and let off. and when I am on it I have seen as least of 20 psi. I would look into a new FPR IMO I don't think highly of using jb weld on fuel products the fuel eats it away

1995 Ford F250 4X4 Sup cap Long bed off white
7.3L Powerstroke, 5 speed manual

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post #3 of 3 Old 03-04-2008, 02:00 PM Thread Starter
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I agree. I also think it should be replaced. Thanks for the reply

97 F-350, 7.3 psd, xlt, limited edition, obs, dually, E40d at, 410 r axle, reg. cab, 8ft bed, 145000 miles, DIY Tymar intake (napa filter) CCV mod. fpr bb mod, HPX crossover pipe, SS Bully steps, Reese Fifth wheel hitch, CB Radio, 3" DP /4" back w/cat delete and 4" flow-thru muffler w/5" tip.
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