Question about 1994 Mercury Tracer

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My 1994 Tracer is overheating, I have changed the thermostate. The radiator had a couple leaks so I plugged them and now there are no leaks. I think the water pump is still pumping and I get an check engine light now. Could it be a bad water temp sending unit or just that the water pump has eroded down far enough that its not pumping water. Car has 219000 miles on it.

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  • Richard Scordino May 11, 2010

    Chances are you need a new radiator. With that kind of miles it has to be internally obstructed.



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You may have to flush your system out. just take and loosen the nut on the bottom of the radiator. get all of the radiator fluid into a container. then connect a water hose to the top of the radiator. with the drain plug still out, turn the hose on and the car on and flush the system. there may be rust or something else clogging the system. if not hat then check your hoses to see if they are collapsing. you may need to replace them

Posted on Jun 16, 2009


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1. start the engine and leave the radiator cap open.
2. put a cardboard cover or a rug in the front of you radiator.
3. let it runs 20 minutes or more, see if it is overheated and see the water or coolant in the radiator circulated or not. If not, as soon as you have already changed water pump. thermostate and check the hoses, no leak, I think your radiator was blocked.

Did you put stop leak before?

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