Ac & overheating

1999 NISSAN QUEST
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EMMAYO
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If i on the ac for both the front and back compartments the car wld overheat but if its just the front compartment everything is ok. What can cause the overheating when i on the ac in the two compartments?mpartment everything is ok. What can cause the overheating when i on the ac in the two compartments?
Sep 22, 2011 at 11:20 PM
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WRENCHTECH
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That's not really possible. The only thing you are adding with the rear is the minor electrical load of the fan. There has to be some other cause of the overheating. I would start by pressure testing the cooling system to see if it holds pressure and has any leaks.
Sep 22, 2011 at 11:58 PM
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EMMAYO
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Thanks so much
Sep 23, 2011 at 1:20 AM
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EMMAYO
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@wrenchtech. Pls whats the implication of attaching the radiator fan directly to the battery terminal in such a way that it starts working as soon as the ignition is switched on
Sep 23, 2011 at 4:44 AM
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WRENCHTECH
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The fan already comes on whenever the A/C is on. That's not the way you fix an overheating problem. That would effect fuel mixture and run a high risk of electrical damage and fire in the vehicle.
Sep 23, 2011 at 9:48 AM
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EMMAYO
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Thanks
Sep 23, 2011 at 8:50 PM