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The thumping noise coming from the rear a/c is being caused by your rear a/c actuator. If you replace this part which is located on passengers side in the rear behind the panel. You will need to remove the panel to access this but very easy to replace once you get to the part. This will take care of the problem just had it done and bingo like new no thumping and air blowing much better. Part runs around $50- $60.Report it
I thought I was the only one with these issues. Favorite settings and clicking/thumping noise (still happening even though the rear ac doesn't even blow cool air anymore). now having to change my alternator at 137K miles. This is my second for that I didn't take much care of after the extended warranty and it's still pretty good. i can't complain.Report it
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