Question about 1993 Geo Tracker

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93 geo tracker still overheating

We have replaced the thermostat on the car and had the car checked for leaks. After driving it on the interstate for about 30 miles, it overheats. I ran water through the radiator to try and flush it out, but it still has a problem overheating. The mechanic found no leaks so, now what?

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The coolant has to flow thru the radiator to cool the engine. So you could have a faulty water pump where the impeller is not pushing enough liquid thru the radiator.
Or there may be a restriction of air flow thru the radiator.
Or there could be a problem with the exhaust system or something that is causing the engine to produce more heat than normal.

Posted on May 01, 2013

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Posted on Jan 02, 2017

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SOURCE: 91 geo storm overheats

Leaks water under the dash or antifreeze. Sounds like it needs a heater core. If you replaced the thermostat it might still have air trapped in it.

Posted on Jul 04, 2009

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SOURCE: How would i know if my overheating problem in my 97 Geo Metro Prizm is a radiator, water pump, blown head gasket, cracked head or a thermostat problem. is there some way i can check for this?

Oil and coolant mixed usually means the engine is damaged.
Blown head gasket, or cracked block - head.
You may have coolant in the engine oil too.
I would not drive it.

Posted on Jul 25, 2012

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