Where is the thermostat located on a 2005 Nissan Quest?
The thermostat is on the passenger side of the engine, in a housing that is below the top radiator hose housing. It is difficult to see and even harder to get to, but it can be done.
What should I use to replace the thermostat on my Nissan Quest?
The jiggle valve allows any air trapped in the system to bleed through and is vital to the success of this repair, so don’t mess this part up! Apply a conservative amount of the proper silicone based RVT sealer to the thermostat housing. I use ultra-grey high temp.
What should I do if my Nissan thermostat is still hot?
Remove the air cleaner to give yourself easier access to the thermostat housing. Never disconnect any part of the car’s cooling system while the engine is still hot. The coolant inside will be under pressure and can cause serious injuries or burns if released from the system.
How do you remove a thermostat from a car?
Jiggle valve on the right. With the housing off, it can be removed with the mating surface down and the hose opening facing the rear of the vehicle. This is tricky and took several moments to achieve, but can be done. The thermostat will likely remain in the engine and can easily be removed separate from the housing.
What to do if your thermostat is faulty?
If you are undertaking this procedure, I trust that you have diagnosed the thermostat as faulty. Start this repair with the vehicle cold. Remove the negative battery cable. You will lose radio presets and other vehicle memory settings, so if these are important, take note and jot them down or take some pics. Remove the radiator cap.
The jiggle valve allows any air trapped in the system to bleed through and is vital to the success of this repair, so don’t mess this part up! Apply a conservative amount of the proper silicone based RVT sealer to the thermostat housing. I use ultra-grey high temp.
Remove the air cleaner to give yourself easier access to the thermostat housing. Never disconnect any part of the car’s cooling system while the engine is still hot. The coolant inside will be under pressure and can cause serious injuries or burns if released from the system.
Jiggle valve on the right. With the housing off, it can be removed with the mating surface down and the hose opening facing the rear of the vehicle. This is tricky and took several moments to achieve, but can be done. The thermostat will likely remain in the engine and can easily be removed separate from the housing.
If you are undertaking this procedure, I trust that you have diagnosed the thermostat as faulty. Start this repair with the vehicle cold. Remove the negative battery cable. You will lose radio presets and other vehicle memory settings, so if these are important, take note and jot them down or take some pics. Remove the radiator cap.