Strange HVAC noise
#1
Strange HVAC noise
There seems to be some sort of buzzing noise coming from behind the glove compartment while my HVAC is blowing. It stops when I stop the blower, and its loudness seems to come and go, but also at times seems to increase with increased blower speed. There are other times though, where it is loud, and then the next time I get in the truck it's barely audible. I can't tell for sure, but it seems to get much quieter when I run the air conditioning. It's been going on for about a week, since I've been using the heat instead of air conditioning in my truck.
My guess is that the blower fan is going bad? I'm not terribly familiar with the HVAC systems, but I was hoping any of y'all might have had a similar issue and knew where I could start looking/troubleshooting?
My guess is that the blower fan is going bad? I'm not terribly familiar with the HVAC systems, but I was hoping any of y'all might have had a similar issue and knew where I could start looking/troubleshooting?
#2
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#5
Originally Posted by Gearhead61
Under the hood compartment right?
Look inside the plenum for a buildup of debris, especially in the fins of the A/C evaporator. Even a small amount can create a bad odor in the interior if it gets damp and mildews later. If you find a buildup in the evaporator fins, gently remove it and clean with Lysol.
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