Lift Pump Symptoms
#32
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?
#34
#35
#36
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.
#37
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
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
Last edited by ktfroy; 09-12-2010 at 09:13 PM.
#38