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Re: 97 gmc 4.3L standard 4x4 and hesitates while driving
Looks like we have the same vehicle and the same problems. It also seems we have change out the same parts with no success. I have been looking into the Mass airflow sensor. I can not find much information on the sensor though. I was watching one of the car repair show on TV when they mentioned the cleaning the sensor. My ears really perked up when the guys on the show mentioned that if the sensor was dirty it may cause hesitation or possibly misfire. Have you heard anything about this?
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