venomhp

iTrader: (13)

Alright, so yesterday on the way home from work my truck started puttering at the stop light, like a misfire, but drove fairly normal. it hesitated and started getting worse on the way home. Once the wife got home I went to autozone and got some bosch platinum plugs and wires, and fuel filter. I changed all that and took her for a drive, seemed fine. today on the way to work everything was fine until I got around a hill and it was kind of surging and started running like crap again. after work I checked all the plug wires and everything was good. started it up and drove to pick up the wife and it started getting a lot worse. its stumbling/puddering at idle and surges while at a constant throttle.

No codes are popping up. I changed the wires around and its still doing the same thing. All the plugs were gapped and Im kind of stumped. I did manage to break the vaccum line from the fuel pressure regulator to the top of the intake but I did the redneck temporary fix with some electrical tape.


WTF the truck is close to being pushed off a cliff

Thanks for the help in advance and sorry for the long post

GMCtrk

iTrader: (27)

fuel pump is going out.

dlt76028

iTrader: (13)

x1. and take those bosch plugs out

venomhp

iTrader: (13)

I just replaced the fuel pump maybe 3 months ago with a new GM one...possible though

venomhp

iTrader: (13)

I did run some heet stuff through thinking it might be that but that was before I changed anything and it wasnt acting up... it would throw the p0171 and p0174 codes so Ive been trying to figure that out the past month or two

GMCtrk

iTrader: (27)

check your fuel pressure at the rails. Also, I wouldn't drive your truck again until you get this solved. My truck died in the middle of the road...not good.

venomhp

iTrader: (13)

yea its parked so Im driving the race car...or the 93 celica, whatever you wanna call it

venomhp

iTrader: (13)

I dont have a fuel pressure guage...if I can get ahold of one, what should it be at?

venomhp

iTrader: (13)

bump! any more ideas?

GMCtrk

iTrader: (27)

you can get them from any auto parts store, its about $20 i think and you just hook it up to the schrader (sp?) valve on the fuel raills should be around 58psi at idle i believe