need your help guys
 

i have a 87 350 tbi that runs good the only problem is when the check eng light comes on after driving for 30 min or so it runs like crap like it bogs down when i take off from a red light i got to floor it to move i check the eng codes and found 2 codes one of the them is the EGR valve and the o2 sensor could the egr valve make it bog down..... i was thinking it could b the TPS sensor what do u guys think it could be

Re: need your help guys
 

mine wassome what simular sept mine had high idle wen cranked up at fist put in gear and go mile down the road and he has low idel and shut off so i had to duble foot it put a brand new tps on it stade the same tested it and put another new one and fixed the problem.... might help some

Re: need your help guys
 

ttt
Posted via Mobile Device

Re: need your help guys
 

I had a similar problem with my 87. Changed the TPS and it didn't fix it. Turns out the EGR valve was the problem, but I recommend getting a GM EGR valve. They are still available through the dealer and aren't that much more expensive than aftermarket. It solved my problem and was an easy plug and play.

Re: need your help guys
 

It sounds like a sticky EGR to me . I would definitely go to the GM dealer to get a new EGR valve. Every aftermarket EGR I have seen has been junk. GM for me on that particular part every time .
Frank

Re: need your help guys
 

i would agree with the EGR valve, it sounds like it is not closing all the way.

Re: need your help guys
 

Thanks guys gonna pick one up I'll keep u guys updated, anyone know the price on a Egr valve from the GM dealer.
Posted via Mobile Device

Re: need your help guys
 

We have an account with the dealership in our town and the ones I have bought have been around $80.
Frank

Re: need your help guys
 

ok changed the EGR valve and o2 sensor the truck runs like a champ no more bogging out when i take off shifts good.... gotta say thanks alot guys for helping me out