Question about 1993 Toyota Camry V6

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Frequently loss the coolant and temperature increase. Heater blow cool air instead hot air

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  • snichols2 Dec 18, 2008

    I have high frequency loud sound from engine compartment when heater blower is on. Starts when acelerating from dead stop and at odd times at speed. Goes away when blower is turned off. Also having coolant loss and loss of heat when engine is below 1000 rpm.

  • snichols2 Dec 18, 2008

    Re-post to add model and year - 1998 Sienna LE

    I have high frequency loud sound from engine compartment when heater
    blower is on. Starts when acelerating from dead stop and at odd times
    at speed. Goes away when blower is turned off. Also having coolant loss
    and loss of heat when engine is below 1000 rpm.


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The coolant is always overheating in my 1999 Toyota Camry - what could be the problem

Posted on Jun 04, 2009

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You are losing coolant if you have a coolant pressure tester follow the directions and use it. If you don't when the car is cool use a 50/50 solutuion of water and coolant fill system and check all the listed items carefully with a flash light and look for leaks. It is either a bad hose, cap, water pump or radiator. Your coolant circulates through the dash and the blower blows throught the heater core to produce heat. No coolant no heat. I would also check the passanger side floor for anti freeze or moisture could be a leaking heater core also.

Posted on Nov 02, 2008

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Please press the Blue button to appraise my FREE Efforts, Thank You!
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i am a nissan master technition in Wichita Ks. we see this problem frequently. there is an air pocket in your heater core, due to low coolant level. for some resion or another your vehical is consuming coolant (usually head gkt leaking into cyl). and sence the heater core is higher than the radiator, the air pocket gets stuck in the heater core.
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sorry about the spelling
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