I OWN A CADDIE 2001 DEVILLE HOW CAN I KNOW WHEN MY THROTTLE SENSOR IS BAD ?
Just may need a throttle body cleaning with throttle body cleaner spray and add fuel injector cleaner to gas tank also check air filter. As far as the throttle sensor is concerned is the check engine light on ? If not its not the sensor and if it is have codes read to see if it is throttle sensor.
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