stange

99' Quad cab 4WD, automatic,short bed all stock.
I have lately had a hard time starting my truck, its hotter than Hades here in Houston,so I checked and "load" checked batteries first,OK. Seems as though I can open the drain on fuel filter draw off a pint and the truck starts great. Mechanics says no air leaks,FP is low, he believes its a software patch for the computer? I have had this issue before and replaced the lift pump 16 months ago, in tank I believe. Repalced ther starter too 2 years ago, could it be a starter thats causing this? Dealer wants 100 bucks for an ECM reset. Mechanic is scratching his.........head. Help, thanks.

67HotRod

Ive seen vp44's that were dieing do the same thing.

Junk Man

Looks like you need a new mechanic. How "low" is low? Low FP is death to the VP. You need gauges.

Is it a hard start even if you shut it down & try to restart? Got any codes?

Starter spins the engine. If engine is spinning, you don't need a starter.

mtkrauss

Fuel pressure is low??? the spec from Chrysler is 430ml of flow in 10 seconds.(sounds like BS to me) In-tank pump is garbage! I just replaced my VP 44 I checked the fuel pressure with a gauge and I had about 6 PSI at Iidle and 0 PSI at high idle. With the in-tank pumps they are more concerned about flow rather than pressure. Chrysler says this is normal, I am not buying it there is something about a gauge reading 0 that just doesn't sit well me. I am in the process of adding a draw straw to the existing in-tank pump and switching back to an external lift pump.

stange

Thanks all for the info. I will post mechanics pressures, check the lift pump, will check out draw straw too. Big hurricane season ahead need to have my truck rolling. Thanks again

Junk Man

Better get used to changing out VPs unless you get more fuel & use something to bump the lubricity. Stock pump in tank or external doesn't get the job done.