I just purchased an 87 GTA 5.7TPI with 700R4 trans. It was doing what it is doing since I got it. When I got it home by trailer I drained all the gas it had been sitting for three or four years so I figured get the bad gas out start new. It sounded like the car was mis firing. It wouldn't idle for more then a few seconds and you couldn't rev it up because of the hesitation. So I pulled the number one plug and it was fouled and the gap was way off about .48. So I put new plugs in and gapped them at .35 what it calls for. Car fired up ran great idled and reved. Let the car start warming up it ran good for about 8 minutes and started doing the exact same thing all over again. I went out this morning the car sat over night fired right up. this time it idled and rev like it should. shut the car off tried starting it twenty minutes later and it was acting up again. pulled the number 1 plug and it was wet(with fuel).

 

did u check the spark plug cables and check the distributor cap and rotor

 

Yes and they were fine

 

what about the fuel filter

 

Brand new and the tank has been drained the car runs good tifor a few minutes till it warms up

 

any more ideas what's the fuel pressure suppose to be?

 

i think its 42 psi if im not mistaken ill search it just to be sure and ill pm if its diff also check for vaccum leaks u might have a pretty big one
keep me posted

 

If it was a vaccum leak the car would be running lean not extremely rich to the point it is flooding the car out. that and when it is cold it runs really smooth I was also thinking something to do with the cold start injector

 

I had a problem like this before and it ended up being a bad EGR valve.

 

I was kinda thinking that but the only thing that is throwing me off is how bad it is running. I know an EGR valve can mess things up but to the point that you can hardly get the car in gear to move it ten feet.

 

like ws6 said it could also be bad egr and it might be the cold start then again it could be both i guess just do process of elimination

 

Ok it is not the cold start haven't checked the EGR I think it is more of an ignition problem. I put a new cap rotor and coil in and the car ran long enough for me to drive it half a mile. It runs good up till the time it starts warming up. I was talking to a friend and he mentioned a timing chain but I have had other people talk me out of that or refuse to believe that.

 

yeah i dont see how a timing chain could cause anything like that to happen there is a friend of mine who had a problem like yours i think ill talk to him tomm see what he did and ill keep in touch

 

thanks

 

Ya I got mine fixed to well it seems to be good so far. Replaced the pick up coil and solenoid in the distributor and it runs like a champ now. not bad considering I only paid 600 bucks for the car cause it was running like that and it was a sixty dollar fix.