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1997 Buick LeSabre Custom 4dr Sedan

1997 Buick LeSabre
Trim Info:
Front Wheel Drive, 4 Dr Sdn Custom, Large Car
19 mpg city / 30 mpg hwy
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February 4, 2013, 10:52 am

Joshua S

Question: Throttle Position Sensor

My Buick's Throttle Position Sensor is acting up. It has all the symptoms of a bad Throttle Position Sensor. I had a voltmeter hooked up to it and it said it was the Throttle Position Sensor. But I changed it twice, both with new parts. And the symptoms are still showing up and the voltmeter is still saying its the Throttle Position Sensor. I have no idea what is going on...

February 10, 2013, 10:43 am

Ron W
Expert Mechanic

Sounds like you have electrical circuit issues. You'll need a shop to check the circuits to see if it is a wiring problem or component failure. But I suspect it isn't the TPS, more like the wire between it and the PCM.

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