What's your fuel pressure with key on engine off? Does it hold pressure or does it leak down after the pump shuts off?
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Fuel pressure is 61 KOEO, around 52psi after an hour of sitting, spikes right back to 61psi with key on, and idles around 55psi. This is with both fuel pumps I've tried, both spider units, and both fuel filters.What's your fuel pressure with key on engine off? Does it hold pressure or does it leak down after the pump shuts off?
That's interesting, because my 99 Burb 5.7 vortec does something like this. I figure the FPR is a little tired after 198,000or so, and let's the pressure bleed down some. Holding the key in On so the pressure builds up in a few seconds, and it starts fine. The spider comes with a new FPR so I plan on doing all that stuff together.Fuel pressure is 61 KOEO, around 52psi after an hour of sitting, spikes right back to 61psi with key on, and idles around 55psi. This is with both fuel pumps I've tried, both spider units, and both fuel filters.
That's interesting, because my 99 Burb 5.7 vortec does something like this. I figure the FPR is a little tired after 198,000or so, and let's the pressure bleed down some. Holding the key in On so the pressure builds up in a few seconds, and it starts fine. The spider comes with a new FPR so I plan on doing all that stuff together.
And just because it's only $8 put another fuel filter on it. I just went through this. God bless it was that easy fix. If it doesn't I'll owe you a hamburger.Not saying that this is the problem with yours but hot starting problems can be caused by vapour locks in the fuel system. Fuel pipe in the vicinity of say, exhaust could cause it.
You mean a third one? Ha!And just because it's only $8 put another fuel filter on it. I just went through this. God bless it was that easy fix. If it doesn't I'll owe you a hamburger.
Yeah, but you have to be smarter than the rags 'n' water.What proves/disproves/alleviates (temporarily) a suspected vapour lock is swaddling the suspect area/component in rags soaked in cold water.
Ehhh?Yeah, but you have to be smarter than the rags 'n' water.