Stalling after about 15 - 20 minutes

Engine Stalling Due to Mass Air Flow/Crankshift Position ...

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Buick Park Avenue Engine Stalling Due to Mass Air Flow/Crankshift Position Sensor Failure. This is a verified ... 1997 Buick Park Avenue- 3.8L V6160,000Visitor. Engine stalls ... car runs then stalls and won't start for thirty minutes. Upvote (36).

Buick stuttering Questions & Answers - Fixya

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94 Buick Park Avenue that stutters under a light load I have a 94 Buick Park Avenuethat ... Buick Century 97 runs rough and stutters when cold and gas applie Engine runs rough ... I have a 1994 buick lesabre it starts ok but stutters and stalls.

not for sure but it could be your cam sensor. if the check engine light is on then take it to a parts store and they can run a scan and give you more information

change the fuel filter and check the fuel pressure

what size engine? any repairs lately to the engine? when does it stall? freeway speeds, around town or at lights?

the engine is emitting more carbon than the exhaust can transfer out befor cloging the o2 sensor
can rebuild the engine. not to confirm this simply pull the o2 back out take brake parts cleaner and spray it let air dry then reinstall and if it does it agine you know the engine needs rebuilt

COULD BE BAD GAS OR A STOPPED UP FUEL FILTER.

check fuel pressure sounds like ur fuel pump may be going out

U DON'T HAVE A CARBURETOR SO FORGET THAT, THE FUEL REGULATOR WOULD NOT CAUSE THIS PROBLEM. I AM A GM FACTORY TECH AND KNOW THIS WITH CERTAINTY. U COULD HAVE SLUDGE IN THE IDLE SPEED CONTROL AIRBYPASS VALVE.

what is make model and year

You need new timing belt and gears. Buicks gears are made of plastic, and become a big glob. Nothing for the timing belt to grab onto.