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Rav 4-2003 car overheating ,new water pump,radiator,themostat-whats next step?

03 toyota 122,000 miles overheats -stops and cools when heater /a/c is switched on--has new pump, raidiator and themostat--think is water temp sensor? see no codes ? or try a new themostate? car starts right away -

5 Answers

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  • 1 decade ago
    Favorite Answer

    Have you tried shutting off the a/c?

  • ?
    Lv 5
    1 decade ago

    The cooling system should have a bleeder valve on it.

    Start engine, bring up to operating temperature.

    release the bleeder screw until coolant comes out.

    refill coolant if needed

  • 1 decade ago

    Have you thought about maybe bringing it to someone who knows what they are doing. Or do you think it's cheaper and a better plan to just keep changing parts.

  • Anonymous
    5 years ago

    there is two temp sensors in that motor vehicle. if the single that controls your radiator fan is undesirable it wont turn on the fan that cools the motor vehicle. once you turn on the AC it automaticly yurns on the radiator fan

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  • 1 decade ago

    how about your rad fan/auxiliary fan? is it working?

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