Ok checked the psi and it was bouncing from 40-50 at idle and when I gave it gas it stayed at 48 psi. So im not sure if that is bad or not but the needle was going crazy at idle. and when the truck was off and it was primed it would be at 0-10-20-25 psi it was different every time.

Does this sound like the fuel pump is going out?

 

Hey guys I really need some help and I am getting no response at all from this forum.

 

I am out of my realm here, but just wanted to bump this up. Someone more knowledgable then myself wil hopefully be along to help out. I know it's irritating but hang in there.

 

my o3 was doing the same thing. showd a nisfire code on cylinder 6. pulled the plug and behold the gap was only 12 thousandsths!! put new bosch coppers and gapped em all at 40, like the book says. cleaned the tps and iac and also pulled the plenum and made sure the air intake temp sensor was facing the right way, it wasnt, so i turned it to where it suppose to be. mine is a 5 speed and it would do it when i pushed the clutch in to change gears. also bought a new gas cap abd upstream 02 sensor(my flaspaq said it was bad. Ive also read on here about runnuning a ground off the throttle body to the battery, i didnt do that tho. mine purs like a kitten now. regular maintenece goes a long way my friend. hope you get it fixed soon.also remeber that the fuel filter is part of the fuel pump itself, i think. what is it doing now?

 

did that ^ help you any man?? hope it did.

 

OK I have replaced the TPS crankshaft sesnor camshaft sensor, injector #1 and coil. The truck is still running like crap I have a new air intake sesnor on order should be here today it was dirty as hell I cleaned it but it has so much carbon on it. I didnt know it had to go in a certain way because it only goes in one way?

I am pretty sure my fuel pump is fried. Should be getting a new on soon. And possibly my pcm is bad but I do not know how to check that.

Thanks for your advice. But I have replaced everything that should be the problem and nothing is working at all.

Does the tps have to be put in a certain way also?

 

Well i checked the compression and it is saying I have zero on the whole truck. But it doesnt make sense if it still runs.

Not sure if I am doing it right do i have to take all the spark plugs out too do it or one by one?

 

One by one. And when you are cranking is when the compression will show, so it may be a good idea to have someone crank for you while you are watching the gauge.

 

HAHA yea i did it by my self no wonder why it was at zero wow im a dumbass lol. Well I will get someone to help me while I do this then.

Im in the process of taking the valve cover off. One damn bolt was rounded so I have to extract it hopefully I can get a new bolt in its place.

 

Well got the valve cover off and nothing is wrong. So I am guessing it is the fuel pump.