Question about 2001 Nissan Quest

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The heat is not working properly

2001 Nissan Quest SEL Minivan. 70000 miles. Despite replacing the thermostat and the hoses, the heat is not warming as fast or as well as it should. The radiator appears to be in good shape and the fluid is testing good.

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Did you check to see if the heater core is stopped up?

Posted on Dec 20, 2008

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Weak heat at best


you may have a problem with the heater core flap that allows coolant into the core. seems like there is just not enougg coolant going through the core. check to make sure the heat/cool selector is working properly.

Jan 03, 2014 | 1999 Nissan Quest

1 Answer

Heater low heat


check to make sure your cooling fan isn't running constantly, also if your temp gauge says the engine is hot but the heat isn't you have a flow problem. maybe water pump or a clogged/ crimped hose. if your gauge isn't very hot then put some cardboard infront of the grill.

Jan 03, 2014 | 1999 Nissan Quest

1 Answer

Where is the thermostat located in a 01 nissan quest


the thermostat is usually in the housing where the top radiator hose connects onto the motor.....cheers.

Sep 03, 2011 | 2001 Nissan Quest

1 Answer

No heat. A/C works. Engine temp normal. Blower works. Controls switch air flow properly. Inlet/Outlet heater hoses only warm.


You have a valve that allows the hot water run to the heater core. Trace the heater lines from the blower to the radiator. You will find one of the hoses connect to a valve that has a couple of wires coming out of it. They do go bad. Its an easy fix, and you can get the part at any auto parts store.

Dec 26, 2010 | 2001 Nissan Quest

1 Answer

How to replace a thermostat on a 1999 Nissan Quest?


1999 Nissan/Datsun Truck Quest Mini Van 3.3L SFI 6cyl

The thermostat is located in the thermostat housing, which is mounted to the coolant crossover tube. The bypass hose is connected to the thermostat water inlet on one end, and to the intake manifold water outlet on the other. The thermostat is not located in the intake manifold water outlet, where the upper radiator hose is connected.

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Fig. Thermostat water inlet sealant application


Hope helps.

Sep 13, 2010 | Nissan Quest Cars & Trucks

1 Answer

At what mileage should timing belt be changed in 2001 nissan sentra


most mechanics will tell u change at 70000 miles but i say 100000 miles

Jul 23, 2010 | 2001 Nissan Sentra

1 Answer

Front air condition does not blow cold. Rear air condition does


sounds like a damper door in the front not working properly, these are actuated by the front temp control, the door is operated by either a manual cable, and electric actuator, or vacuum. I hope this helps you zero in on your problem. Merry Christmas

Dec 22, 2008 | 2001 Nissan Quest

1 Answer

Nissan Quest 1996 minivan


you need to remove the lower balljoint and the center nut and it should come right out. use pb buster or wd-40 on the splines. they tend to rust up

Oct 02, 2008 | 1996 Nissan Quest

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