I got a 1994.5 powerstroke and it starts when its cold but not when its warm at all! any thoughts???

 

IPR o-rings need replaced more than likely.

 

is it rebuild able?

 

Yea just get a o-ring kit for it

 

where could I get , one I don't want some cheap one that will fall apart later on

 

http://www.riffraffdiesel.com/ipr-complete-re-seal-kit/

 

would a bad oring on an injector cause the same thing?

 

sure will....the cold oil won't get past a compromised o-ring...warm oil allows the leak, hence not enough oil pressure to fire the injector...hth


mojo

 

Could also be bad IPR o-rings, i believe.

whatever the case, i had this problem on my old truck and cured it with an oil change :-) new oil wont thin out as much when warm, so if you're nearing or past 3000 miles, give it a change and it may get you by a while longer.

and for what its worth, i was using Shell conventional 15W-40 and switched to Mobil Delvac (15w-40) at the time and never had the problem again. the mobil is definitely thicker out of the bottle (or 5-gallon pail) ;-)

 

its got right around 3500 miles on the oil, but if it was a bad oring wouldn't it have oil in the fuel and smoke while running???

 

Ipr oring will dump to pan. Injector could go to the fuel which should turn your filter black. Idk if it can go right to the cylinder or not. Maybe through the internals of the injector

 

One or two bad injector o-rings would not keep it from starting. If the IPR o-rings are bad, it won't let it build enough pressure to tell the PCM to fire the injectors. A couple bad injector o-rings would just make it run rough, and most of the time it will put oil back in to the fuel bowl.

 

ok that's what I thought it would do , thankfully I have an hpop laying around with a ipr still on it so imam take it off and use it

 

I'd still go ahead and put new o-rings on it while you have it out.

 

Listen to that guy ^^^