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I recently purchased a 2011 Nissan Altima 2.5 SL. So far I love the car. My one concern is a noise coming from the blower motor. It almost sounds like a bearing rattle noise on low to medium speed settings. The longer the fan is on the more pronounced the noise becomes. It is not over whelming but, being a car guy these noises drive me crazy! Even my passengers have noticed the noise. My car is still under Nissan factor warranty because I only have 31,500 miles but I fear the issue will get worse after my warranty expires. I took my car to Nissan today and they removed the motor and inspected it. They even showed me the blower motor and spun it by hand and I couldn’t hear anything. There also didn’t seam to be any play in the motor. Nissan didn’t charge me for the diagnosis when the Service Writer told me on the phone that there would be a charge when I made my appointment if they couldn’t find a fault or found debris in the fan. After removing and re-installing the blower the noise when away. After about 3 miles of driving with the heater on the noise returned but isn’t as dominate. I also smelled a hint of WD-40 when I first got into my car.
Is it possible to just sprayed some lubricant into the motor to quiet it? What would the dealer have to loose or gain by not replacing the motor? I work in the service industry and know all about duplicating problems before repairing under warranty but, I always make exceptions by listening to my clients. What would I have to gain but wasting my Saturday off sitting at the dealership if their wasn’t a genuine problem?
Has anyone else witnessed this issue with the noisy blower motor on Nissan Altima 2011?
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