1997 Mazda mpv overheating after we put antifreeze in it. It has a new water pump,thermostat .

Asked by Jun 24, 2012 at 03:53 PM about the 1997 Mazda MPV 4 Dr ES 4WD Passenger Van

Question type: Maintenance & Repair

My 1997 Mazda mpv is overheating after we replaced thermostat, water pump and it's full of antifreeze. Also it didn't
start this until we put the antifreeze in it. And my a/c blows out hot air

2 Answers


A bad temperture sensor could be the issue or my guess is the cooling fans aren't working. Run the car and see if they turn on, maybe you didn't hook them back up when doing the repair.


It sounds like you have an air bubble in the system, probably around the thermostat itself. Hot air is not hot enough to open the t'stat so you will need to bleed the air. Usually just squeezing the upper radiator hose will do this effectively. Look for air bubbles coming into the top of the rad, or overflow tank. Once they stop you should be good to go. And once the t'stat opens it the system will finish the bleed by itself.

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