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.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
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.
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.
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
located in the intake manifold water outlet, where the upper radiator hose is connected.
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