What could still be making the car overheat ?

Asked by mgordon51 May 08, 2016 at 10:46 AM about the 1997 Cadillac Seville SLS FWD

Question type: Maintenance & Repair

I have a 1997 Cadillac SLS . I have changed the water pump, fan relays, antifreeze reservoir, hoses, thermostat , and did a pressure check for head gaskets and it was fine, also replaced the heat temperature sensor. The car is still overheats but not right away. What could this problem be ? Thank you.

mgordon51 answered 7 years ago

Yes they are running and they are in the right direction. It seems as though even with two new water pumps something maybe clogging the circulation of the coolant. I just don’t know what and thank you for your response.

Mark helpful

mgordon51 answered 7 years ago

Thank you , I have not tried that yet and it make a lot of sense ! I will let you know how that works out, and again Thank You !!

Mark helpful

605

CCW answered 7 years ago

Try this disconnect the heater hoses going to the heater core then take a garden hose with a jet stream nozzle and flush it out . Plus try this by pass the heater core for a week see if it is still over heating if it is then you have a bad core

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What could still be making the car overheat ?

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What could still be making the car overheat ?

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