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runs great, but runs rough and dies when i try to restart it when warm

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Old 02-24-2011, 11:31 AM
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Car: 87 Trans Am
Engine: 350 carb'd
Transmission: 700R4
Axle/Gears: Stock
runs great, but runs rough and dies when i try to restart it when warm

I've got the wildest problem with my car. It will run great on cold start up, and great when it warms up. But if I drive it around town for a couple hours doing errands, Il come home park it, and 30 minutes later go to start it and it dies. I can push the throttle to keep it alive but it will do this for a minute or two. What could be the problem here? Just replaced the distributor, plugs are pretty new, oil done just a couple months ago, fuel pump done the same time as the oil change. Good luck figurin this one out! Thanks in advance for any and all ideas. -matt
Old 02-24-2011, 02:14 PM
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Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: runs great, but runs rough and dies when i try to restart it when warm

Does the fuel pump prime when you try to restart?

Did you replace fuel filter as well?
Old 02-24-2011, 05:43 PM
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Car: 87 Trans Am
Engine: 350 carb'd
Transmission: 700R4
Axle/Gears: Stock
Re: runs great, but runs rough and dies when i try to restart it when warm

Originally Posted by camaronewbie
Does the fuel pump prime when you try to restart?

Did you replace fuel filter as well?
I haven't paid attention to the priming of the fuel pump but I replaced the filter sock that goes directly on the fuel pump. I'm pretty sure there's another fuel filter somewhere underneath the car right?
Old 03-02-2011, 12:01 AM
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Car: 87 Trans Am
Engine: 350 carb'd
Transmission: 700R4
Axle/Gears: Stock
Re: runs great, but runs rough and dies when i try to restart it when warm

Yes, the fuel pump does prime everytime. Still having this problem though and I'm completely lost. I was thinking maybe a vacuum leak but that wouldn't make sense seeing as how it only happens when its already warmed up.

For example:
Last night I drove to my nephews football game, giving it plenty of time to reach 220-230 degrees, perfect operating temperature. After the game I went to start my car and it would start right up, stumble and die. I would press the gas trying to keep it alive but it would hesitate And fight me for about 2 minutes then it runs fine. I don't get it, please help me out.
Thanks, Matt
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