noise under the hood when the blower fan for a/c or heat is truned on.

Asked by bmanley707 Oct 22, 2013 at 07:30 PM about the Pontiac Grand Am

Question type: Maintenance & Repair

2000 Grad AM 6cyl. Noise under the hood. I thoiught it was the blower fan but fan is working . The noise is in all blower positions, Sounds like rattling. When rattling exceleration is limited and performance of car takes a dive. When not rattling car performs good. Car has been well maintained and has 154,000 miles.

2 Answers

migration_judge_roy answered 11 years ago

the component belt (a flat belt for all) has a tensioner...these wear out and lose their stuff...get worn to one side and make a misaligned and noisy~

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