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dan is this a 4 cylinder?quad 4 by chance ,does it misfire,if so it could be the "DI" direct ignition on top of the valve cover or the module that is attached to it,also ispect coolant temp sensor but that doesn't sound to likely,if you get this throw up some more info.

Answerthe cylnoid or has a blown head gasket or maybe overheats

There is no such thing as cylnoid to answer the question. Get diagnostics run and look for a pattern in the codes. Likely you have an intermittent sensor or a leak in vacuum pressure that needs to be addressed. More likely a fuel delivery problem, check your fuel pump.

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Q: What could be wrong if a 1996 Pontiac Grand Am hesitates and bogs down accelerating then after the car is off it will not start for at least an hour then runs rough with no power?
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