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Mazda CX-9 not cooling well

Posted: Sat Jun 24, 2017 4:01 pm
by VegasGMC
I bought this used 6 months ago and having issues with a/c and would like to get some input before I make the dreaded trip to the dealership. Its a 2014 with 3.7v6 and 40k miles and auto air. A/C doesn't get very cold when out side temp is over 105f and it blows warm when ever I accelerate to pass or enter the freeway and blows cool at lights. On the days when its been 110 to 115 it doesn't get really cold on the freeway. I was actually sweating. Pressures are 60L-350H at 105 ambient at 1500rpm and center vent temp is 60f with laser thermometer. My last vehicle was a 2006 Nissan Xterra and I never had any of these issues. It even blew cold sitting in traffic in the summer. Thanks

Re: Mazda CX-9 not cooling well

Posted: Sat Jun 24, 2017 4:30 pm
by bohica2xo
Condenser airflow issue.

Fan(s) not operating at full speed, etc.

Something lodged between the condenser & radiator blocking airflow - I found a full sized dead rat in a fan shroud last winter here in Vegas. The nest with babies was between the radiator & condenser. Locked fan caused a MIL

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Re: Mazda CX-9 not cooling well

Posted: Sun Jun 25, 2017 9:48 am
by VegasGMC
Thanks. Under hood temps seem excessive to me. I burned my finger on the hood prop when I was checking pressures. Now that you mention it, the fans didn't seem the be blowing as hard as others I've dealt with.