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1999 Nissan Quest Repair Question


Topics covered: Battery, Cooling system, Pressure test.
Mileage: No information provided.

Asked on September 22, 2011

Ac & overheating

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?
Avatar Asked by Emmayo

Answer

Replied on September 22, 2011

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.

Tiny Answered by Wrenchtech (expert)
14,828 answers provided
Replied on September 23, 2011

Thanks so much

Tiny Response from Emmayo
13 questions asked
Replied on September 23, 2011

@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

Tiny Response from Emmayo
13 questions asked

Replied on September 23, 2011

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.

Tiny Answered by Wrenchtech (expert)
14,828 answers provided
Replied on September 23, 2011

Thanks

Tiny Response from Emmayo
13 questions asked