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Old 07-12-2010, 12:56 PM
Getovait2005 Getovait2005 is offline
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Question Re: 91 Buick 3.3L Starts and runs great cold, but dies out after 6 mins

The long story.

Well i just had another problem happen. Yesterday i was accelerating, about 25% throttle, and about 45MPH the car just flat out stalled, like i turned the key right off. I drove for a about 700Ft and pulled over. I tried to start it, and it would not go, nothing, i thought i ran out of gas, it was at a 1/4th of a tank, but thinking maybe the fuel gauge is off.. So i walked 2 miles back home, grabbed my gas can with about 1.5gal of fuel, and walked back to the car. (This is upstate, NY) I put in the 1.5 gals, got in the car excited thinking im home free, and well guess what? No start..... I hear fuel pump, and also fuel was at the fuel rail. So i get it towed back home, the 2 miles by a friend, let it sit in my drive way for an hr or 2 charging back up the battery, go out, and it starts and runs great... Rev it a couple of times no issues, but after 3-5 mins, i give it gas, it revs to about 2500RPMS, and again its like i turned off the key, stalls right out, and no amount of flooring/pumping will save it. But it starts right back up, but you have to hold your foot on the throttle, just slightly, then if you let up really easy, it will idle down to around 400rpms, then catch its self and rev to the normal. Now i try to move it, and it dies right out, and will not start, just turns over and over and over. I spent about 45Mins trying to move it in to my garage from my drive way... Next morning, i go out, and it starts right up, and runs fine, no foot on throttle, nothing. I let it idle for about 1-2 mins, then take it out for a drive, i give it 75% throttle, and take off, next thing i know is im doing 70. Alright, looking good, while slowing down, less then one min later, i go to make a 90 degree turn right, and she stalls out on me... Starts right back up, but i have to keep foot on throttle, to keep it running. shift in to get 1, give it around 20% throttle, get moving, to about 25MPH then start going down a hill, and it wants to stall, as in im losing speed, floored, its doing nothing, the road levels out, and i already know it stalled... Thats where im at. ATM with it.

So what should i really be looking at?

Can hear fuel pump, has fuel pressure. runs fantastic for the first 3-5 mins, then stalls once warm, and has trouble staying idling/running. Let it cool off, will do same thing again...

Thanks!! and
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