ya i got it back together and still running the same so i guess the pump is bad not lift pump

 

I was still getting air after changing the lp, I came to the conclusion that one of my steel lines was bad, it wasn't leaking fuel but was letting air in. I installed a draw straw and diesel approved rubber hose all the way from the tank to the lp. Solved my problem. You could have a weak ofv also, do you have a fp guage?

 

no i dont have a fp gauge is the ofv the one on the ppump?

 

It's the bango bolt on the return line coming out of the IP if it's bad it's just relieving the pressure back to the fuel tank. From what I have read P pumps don't go bad very often, but anything can happen.

 

ya idk it starts easy but it runs funny when idle and when i put it in drive it idle down like it wants to die and when driving it sounds like a helicopter idk if its a miss or what

 

idk why but i have noticed this problem a lot more with automatics. mine used to die at idle so i started replacing things. Fuel filter and prefilter changed and no change. bumped up my idle still nothing. just so happened a set of unwanted stock injectors from a 96 manual fell in my lap so i put those in and everything has been perfect since. i dont remember any kind of helicopter noises though. i would inspect every fuel line and definatly your ofv as well. mabey timing. many things could be wrong. first step would be to know your fuel pressure.

 

After considering the different approaches I decided to go for the straight shot - from the side. After taking off the inner fender shroud I used a metal blade on a sawzall and made a single horizontal cut of about 4" in length after which I was able to bend the lower part of the inner fender out of the way. This gave a clear shot to the LP which made the swap a breeze. While I was at it I cleaned out the pre-filter and removed the heater element which seemed like it may have been leaking.

The only difficulty was in getting the mounting bolts re-threaded so I decided to put studs in the block and then just assembled the unit hanging on them. They are 8 mm x 1.25.

The inner fender folded right back in place and after a touch of some primer seems no worse for the wear. Included is a picture of the access.

The truck fired right up and runs like a champ. Thanks for everyone's tips and I hope this helps someone else. This site is GREAT!

IMG_3939.jpg?t=1284338487

IMG_3938.jpg?t=1284338487

 

 

so how many miles did that LP last you before you replaced it? (ktfroy)

 

130k