Knocking Noise From the AC Compressor on Dodge Avenger

A knocking sound my be heard from the engine at times with the air conditioning on. The cause could be the AC compressor itself, if that is the case there is an updated AC compressor to correct this issue.

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Average mileage: 80,384 (15,900–310,000)
6 model years affected: 2008, 2009, 2010, 2011, more2012, 2013
118 people reported this problem
73 people shared problem details
2008 Dodge Avenger175,000
Knocking noise happens after I turn off the heat or air conditioning... Goes away after a few knocks but is annoying and load when it happens ...
2008 Dodge Avenger104,236
I hear a knocking noise that seems to be coming from the under the glove compartment. I only hear it when i turn on the air conditioner. So frustrating since i just replaced the alternator, pulleys and serpentine belt. What else is going to go wrong with this car....its only 4yrs old.
2008 Dodge Avenger108,000
Clicking noise behind glovebox when the heat/ac first comes on. Happens periodically when running ac. Also happens when the car is not running, no key in ignition.
2008 Dodge Avenger117,846
When the a/c is on it is fine. A loud knocking noise starts when you turn on the recirculate button on the a/c. Eventually it will quit. Sometimes it makes this noise when the a/c is turned off. Turn it on and it quits.
2008 Dodge Avenger86,453
I get a loud knocking noise when I turn the A/C and or heat on or off. It knocks/clicks for less than a min, but is very annoying. I have not brought it in to a shop yet to see what the problem is.
terrible knocking and clatter from front of engine compartment. replaced all pulleys and tentioners, new power steering pump, new alternator, NOW they are telling me in the aC compressor. Is this a common preoblem with the 08 avenger?
2008 Dodge Avenger64,000
I hear a knocking sound from the dash when I turn on the heat/AC. Noise only last a few seconds.
2009 Dodge Avenger86,000
Same as others. Knocking sound under glove compartment. Heard that it is the AC compressor and may cost hundreds to repair!
2008 Dodge Avenger109,372
Noises from the engine were heard, took the car to Dodge tecnician and was advised that A/C Compressor was damaged. Estimated cost of repair was $800.00!
2009 Dodge Avenger55,000
i have a loud knocking noise behind my ac uint also
2012 Dodge Avenger56,000
Thumping noise from glove compartment area when ac/ht is turned on. Also, noticed after car was turned off.
2011 Dodge Avenger51,000
Clicking sound from the passenger side dashboard. Occurs when car is first started and A/C or heat is on, and lasts for a few seconds. Will stop immediately if A/C or heat is turned off. Also notice this when car is parked in garage, even after not running for hours.
Well we havent fixed it yet,but when we turn on the heater or ac it starts knocking for about 15sec an it goes away. Sometimes it even knocks when the car aint even on.
same issue.. but I replaced the cabin air filter and my problem went away.. it's on you tube. very easy to replace! try this first!!
There is a loud knocking sound that seems to come from behind the glove box occasionally when I turn on the AC. Could it be the compressor? The sound comes and goes.
2010 Dodge Avenger100,000
Knocks exactly 23 times whenever electrical system comes on AND A/C is turned all the way down. If it is one notch to the right, knocking does not occur. But if it is turned all the way left, it occurs when I simply open the door (presumably turning the electrical system on).
2013 Dodge Avenger55,000
Same knocking loud noise. Whether I'm driving or not or running the AC
2012 Dodge Avenger50,000
Same Problem as everyone described.
2009 Dodge Avenger108,000
Lots for grinding or knocking noises everytime I was at idle with the ac on but went away when I started driving at a high enough speed or turned off the ac
Ac started knocking. Shortly after AC stopped working. Blowing hot air
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