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