by Dena Davis on March 12th, 2006

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My 1990 Buick Park Avenue has been running rough for a few years. It hesitates and shakes while driving. We've replaced the ignition coil 3 times, harmonic balancer, crank sensor, plugs and wires, even the computer. What next?

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by Bobbbb on December 22nd, 2006
i got a 90 olds toronado, i believe they have the same engine. i had someone rip apart the engine, but i think it was only the knock sensor. try that
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My 1990 Buick Park Avenue has been running rough for a few years. It hesitates and shakes while driving. We've replaced the ignition coil 3 times, harmonic balancer, crank sensor, plugs and wires, even the computer. What next?

Answers. 1 helpful answer below.

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My 1990 Buick Park Avenue has been running rough for a few years. It hesitates and shakes while driving. We've replaced the ignition coil 3 times, harmonic balancer, crank sensor, plugs and wires, even the computer. What next?

Answers. 1 helpful answer below.

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