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1995 Ford Escort

Question: My 1995 Escort wagon keeps overheating

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joecallia, 1.9L 4 Cylinder, Renton, WA, January 18, 2011, 13:43
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 Rookie

My Escort wagon keeps overheating. I first replaced the heater core because that was broken, and I also replaced the thermostat thinking that may be a quick fix for the problem. When I drove it after the temperature gauge was all over the place. It would jump from a normal temp to hot in seconds, then back to cold seconds later. I then changed the coolant temperature sensor to see if that may be it. When I went to warm the car up the temperature gauge didnt move from cold, and the car ended up overheating. I was thinking of removing the thermostat next to see if I bought a faulty part, but i expect this one to react like the old one and get stuck open if it were broken. Anyone have any other ideas?

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  • Medium-star Best Answer
    mastertech6371 January 18, 2011, 13:47
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     Master

    common for cracking cylinder head. if it overheats, the aluminum head cannot take much abuse from the heating up. we have replaced many, many heads from overheating.
    a simple test at a shop can confirm this.
    it is expensive to repair if this is the case.

    Roy

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  • Answer #2

    Motorplex / Pro-Tow (2282 Answers) , Maple Valley, WA - (425) 310-1100
    Motorplex January 18, 2011, 13:53
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     Technician

    Coolant does not change temperature that fast. What you are experiencing is the coolant temp. reading air one moment and coolant another. It is imperative that there is no air in the system to begin with. Once there is zero air in the system, restrictions can be eliminated. A thermostat would be an example of a restriction, as would a radiator. Hope this helps. Keith Lewis

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