Question about 2005 Chrysler 300

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2005 Chrysler 300 intermittent air flow problems.......you can hear the fan blowing but no air coming through whether on auto or manual, heat or air conditioning. Will stay off for hours or days and then work again. Dealer says he can't do anything unless it is "NOT" working...they don't know what to look for....very frustrating......help please.

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  • larry_denise Apr 14, 2011

    The information is not the answer to my problem. In manual mode you can hear the fan running very strong...however whichever mode you move for air direction..e.g. defrost, floor, dash vents etc.....no air is coming through....are there gates/doors that need to open to allow the change in air flow??...is the direction controlled by thermostat or computer???.....is there a vacuum hose involved????.......so to reiterate the question....fan is running but NO AIR FLOW through any of the outlets......The car is still under extended warranty but the answer I get is if it's working when I bring it in...they don't know what to look for. We went 2 days driving from Arizona to Canada with no air conditioning in 90d heat and no heat in 38d cold temperatures.....then 2 days after arriving home it was working fine.....this is very frustrating and I don't know where to go. Help please.......

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I have not worked on an AC of a 300 before but I have heard of an issue on other cars. I suspect it has to do with the duct inside the dashboard. There should be a motor door that mixes the air or directs air to a certain part of the car. It may have gone bad blocking the air to go to the vents to the interior of the car. There could be a loose connections or the coils of the solenoid might be starting to fail that is why it is intermittent.

Posted on Apr 14, 2011

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More than likely the fan is controlled off the "climate control" module,can you run it manually(as in bypass the climate control so as to run continually)? then if it doesn't work or still comes on when it wants to,then you have a bad connection either at the motor or where the fan is powered from,the easiest place to start is remove the panel wher5e the fan,temp selector,etc,. are mounted and see if you can see anything possibly blackened,burned,etc.,that might contribute to your issue,then move wires around and see if the fan starts,otherwise you will need to find this fan near the glove box behind the dash and troubleshoot the problem from there

Posted on Apr 11, 2011

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