I have a 96 grand am, just has a rebuilt motor put in b/c it blew a head gasket. now, after being at a complete stop, the car jerks, stutters and hesitates and i have to floor the gas pedal to get it to move at all, even though it's really slow, it will eventually pick up speed.it doesn't do it all the time. the car will also cut off sometimes, but it always starts right back up. sometimes when i am braking, the car will stutter and **** also
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The heads will have to be removed and new gaskets installed. You will then need to find out why it blew the head gaskets. Overheating is the most common cause. STOP driving this vehicle until you have this repaired or you will destroy this engine.
head gasket failure. its about $2000.00 to replace the head gasket. the head usually worps, so you'll need a new head. if that happens just replace the engine becuase your putting a new head on an old block.
If its the 3.1L it could be your intake manifold gasket , the material used for the gasket does not react well with GM's Dex-Cool antifreeze. The leak may not be apparent at first, but I would pressure test the cooling system. If you look at the front of the motor by the belts , try to peek down at the intake manifold and check for slight seapage to an obvious leak.
If its either of the Quad-4's they were notorious for heads warping or cracking.