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Car

Tiny
DHORNB1
  • MEMBER
  • 2004 NISSAN MAXIMA
  • 140,000 MILES
My '04 Nissan Maxima overheats only when at idle, the temp drops back to normal when car is moving. Also, I just noticed that the a/c doesnt blow cold air while at idle either. It blows cold once the car is moving.

.I'm thinking that the 2 problems are being caused by either a bad fan motor or bad fan motor fuse. Is it most likely that or could it be something else?

Thanks for your help!
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Friday, August 31st, 2012 AT 5:24 PM

6 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check the cooling fans first. Both should come on with the A/C turned on and compressor running.

Ensure there are sufficient coolant in the radiator and you do not have coolant losses.
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Friday, August 31st, 2012 AT 5:59 PM
Tiny
DHORNB1
  • MEMBER
  • 10 POSTS
I havent looked at it yet but I believe there are 2 fans. Is there 1 fuse for both fans or does each fan have their own fuse?

(I assume if one one fan is turning then I have a bad fan motor on one).
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Friday, August 31st, 2012 AT 6:07 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
They are 2 different circuits and work independent of each other. Have a look first.
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Friday, August 31st, 2012 AT 6:14 PM
Tiny
DHORNB1
  • MEMBER
  • 10 POSTS
Oops sorry for the typo.I meant to say that I assume if only one fan is turning then I have a bad fan motor on the other one.
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Friday, August 31st, 2012 AT 6:15 PM
Tiny
DHORNB1
  • MEMBER
  • 10 POSTS
Oh ok, thanks!
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Friday, August 31st, 2012 AT 6:16 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You need test to confirm if it is a fan or other issues.
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Friday, August 31st, 2012 AT 6:55 PM

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