G37 Overheating issue
05-11-2018, 04:25 PM
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G37 Overheating issue
Hey guys/galls I am fairly new to the G life, I recently purchased a 2011 G37 sedan auto base model and I am having a issue, the car overheats on stops only and once I turn the heat on it drops to normal almost instantly, if I leave the Ac on it climbs to H in no time, I recently replaced the T stat thinking that was the problem and it wasn’t , also the fans are working perfectly, anyone have any idea or have this happen ? Any help is appreciated , thanks !! Vehicle has 63k miles .
05-11-2018, 06:41 PM
#6
Double check the fans to ensure they are turning at full speed. I had the same problem: temp would rise when stopped at a red light/ drive-thru, etc. and drop to normal once I started moving again. Also, my A/C did not blow as cold. I tested the fans and it turned out they were both giving up the ghost.
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05-13-2018, 08:53 AM
#10
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If you have a good scan tool (not just a code reader), you can usually activate the fans. I thought you said the fans are working fine?
05-13-2018, 12:27 PM
#11
The car already has a self test protocol built in. This link is for the Nissan Note but the procedure is the same:
http://www.noteownersclub.co.uk/foru...topic2638.html
In my case I ran the IPDM self test and one fan only spun at half speed and the other never came on. To make sure it was the fan motors and not the module, I disconnected the fans from the module and ran 12V directly to the fans- they were goners.
In the end I bought a used, complete fan assembly from a 2016 370Z off eBay and 20min. later problem solved.
http://www.noteownersclub.co.uk/foru...topic2638.html
In my case I ran the IPDM self test and one fan only spun at half speed and the other never came on. To make sure it was the fan motors and not the module, I disconnected the fans from the module and ran 12V directly to the fans- they were goners.
In the end I bought a used, complete fan assembly from a 2016 370Z off eBay and 20min. later problem solved.
Last edited by ILM-NC G37S; 05-14-2018 at 09:27 AM. Reason: Fixed link
05-14-2018, 08:41 AM
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@ Gdaddy, it’s so wierd , I park it at home and the fan works once it’s warm, I go out into traffic and it starts to heat up and I park and check and the fan isn’t working , then turns on maybe 1-2 mins later , I’m guessing there’s something wrong with the module ?
05-14-2018, 08:52 AM
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The car already has a self test protocol built in. This link is for the Nissan Note but the procedure is the same:
http://http://www.noteownersclub.co....topic2638.html
In my case I ran the IPDM self test and one fan only spun at half speed and the other never came on. To make sure it was the fan motors and not the module, I disconnected the fans from the module and ran 12V directly to the fans- they were goners.
In the end I bought a used, complete fan assembly from a 2016 370Z off eBay and 20min. later problem solved.
http://http://www.noteownersclub.co....topic2638.html
In my case I ran the IPDM self test and one fan only spun at half speed and the other never came on. To make sure it was the fan motors and not the module, I disconnected the fans from the module and ran 12V directly to the fans- they were goners.
In the end I bought a used, complete fan assembly from a 2016 370Z off eBay and 20min. later problem solved.