Overheat when A/C on

Information on the naturally-aspirated KA24E and KA24DE engines.
JDMrida
Posts: 25
Joined: Sun Dec 17, 2006 3:27 pm

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My car's temp raises really fast when I turn on the A/C and quickly drops when I turn it off... whats the problem? I replaced the mechanical fan and a/c fan with 2 slim fans that are turned on every time I start the car.


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Razi
Posts: 28373
Joined: Sun Dec 31, 2006 9:52 am
Car: Moo

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I can notice a change in water temp when I switch on the A/C, my Autometer gauge shows about a 15 degree increase in temps.

I think it's like that because the A/C's radiator is in front of the engine's radiator and warms the air that reaches the engine's radiator.

JDMrida
Posts: 25
Joined: Sun Dec 17, 2006 3:27 pm

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It gets really close to the Hot letter though.. so its too dangerous to drive.

Bigvinnie
Posts: 1079
Joined: Thu Apr 07, 2005 2:07 am
Car: 2004 Nissan Frontier desert Runner, 2014 Nissan Titan

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Electric fan relay could be bad. Check to see if your efan turns on when you turn on the AC.


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