RR issue
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RR issue
Question, when I shut my truck down I can watch my fuel pressure drop rapidly. Is this normal, or am I getting air in somewhere? Also if truck sits for a day or so, it starts then dies, and then it takes a few seconds to fire back up. Is this due to the fuel pressure dropping as soon as I turn the truck off?
Lead Driver
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How's your r.r. setup. Do you still use the oem hard fuel lines? If so, ford has a bleedoff checkvalve at the poerts where the hardlines connect to heads. It was needed or else there wud be 75+psi sitting dormant in the fuel rails while trucks off. Can't see that being gud on injectors or orings
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No stock hardlines left. but I also had to relocate the fuel pump about mid-ship to get it in-between my filters, I could not use the stock pushlock fittings on the pump and had to go another route. could I be getting air in by the pump.
Lead Driver
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No, the stock pump lines were horrible. If replaced with fuel line and hose clamps, I don't think airs introduced there, or anywhere. When my wvo gets low, or when I turn,and pump loses fluid, I se my fuel psi gauge drop to 0. When you turn ur truck off, fluid draws back, from the regulator, back thru the heads, out the fuellines,ba k to down thru filters and pump, ending in the tank....
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from tank, I went to water seperator, fuel pump, fuel filter, then to a T-fitting to the rear of the heads, from the front of heads to regulator and from bottom of regulator to return line.
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Lead Driver
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Sounds gud to me. I think ur getn the bleed back of fuel. Try cycling the key a few times, to prime system, see if that helped.
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From: Dalton,Ga
Question, when I shut my truck down I can watch my fuel pressure drop rapidly. Is this normal, or am I getting air in somewhere? Also if truck sits for a day or so, it starts then dies, and then it takes a few seconds to fire back up. Is this due to the fuel pressure dropping as soon as I turn the truck off?
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it takes about 2 minutes to drop to zero, but I cannot find a leak anywhere, unless it's small enough I don't notice a whole lot of fuel. right now I am doing injector o-rings and have everything apart. probably be a good time to look closer while it's all apart.
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From: SEMO
Double check every fitting! The smallest leak will cause trouble.
Questions,What type of fittings? Hard lines with flare JIC or rubber lines with push lock JIC fittings?
I had trouble with rubber lines and push locks.I went to hard lines and did JIC flare fittings.No more probs.
Mine bleeds down like Joe's does.Takes about the same time.
Questions,What type of fittings? Hard lines with flare JIC or rubber lines with push lock JIC fittings?
I had trouble with rubber lines and push locks.I went to hard lines and did JIC flare fittings.No more probs.
Mine bleeds down like Joe's does.Takes about the same time.
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