Question about 2001 Toyota Avalon

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2001 Toyota Avalon overheating please help!!!!

The car started overheating today only when in park?

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  • stalynbulldo Dec 11, 2008

    Thank you for getting back to me, the fan does go on someone told me that it could be the timing belt and the water pump? I don't want to change it if I don't need to.

  • stalynbulldo Dec 11, 2008

    I just drove in town around 25mph and notice that it starts to overheat. Please Help

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It can be one of a few things. Water Pump failing, Fan isnt turning on due to a blown fuse, relay, wiring, or fan switch, or it could be you got something stuck infront of your radiator.

First I would check the radiator for a bag or something infront of it.
Then Start the car and listen for the fan to start and engauge.
Last Determin where your water pump is. Take a solid peice of metal so you can use it like a steathascope and listen and see if you hear he water pump actually moving water.

Posted on Dec 11, 2008

  • Adam
    Adam Dec 11, 2008

    Check your coolant and make sure it is still full. If it is low add some coolant, And make sure to add it to your coolant resivoir bottle also. Dont try to add coolant when the engine is hot.



    A cheap thing you could try is replacing the radiator cap. When the cap gets old the spring inside of the cap gets weaker so it cant hold as much pressure lowing the boiling point of coolant.



    Make sure you get a 1.1bar or higher radiator cap. Im pretty sure that is Toyotas rating.



    Next if the radiator cap dosnt work try replacing the thermostate. It is another quick cheap part. If the thermostat is stuck closed it wont open so coolant can not circulate through the engine to cool it properly



    Both should only cost you a total of 20-30 dollars if you do it yourself.

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If You mean only when not moving then it is likly that the fan is not working. If electric it may be a bad motor or heat sensor to the fan motor. If mechanical it is a bad fan clutch if the fan pulley is turning.

Posted on Dec 11, 2008

  • Thomas F. Schneider Dec 11, 2008

    Water pumps leak when they go out. Is the water level low? The most likly is not the timing but the radiator. Have the cooling system cleaned and flushed first before going to the expense of pumb or timing. If timing was off,starting and preformance would be way off also.

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Your radiator fan stopped working maybe a blown fuse bad relay or radiator fan switch.When you drive the car get air and cools down when you are in park the fan is supposed to provide the air if needed but its not working. However the fan itself could be burnt out and may need to be replaced. Good Luck

Posted on Dec 11, 2008

  • O Mclean Dec 11, 2008

    ok if you have more than 60,00 miles on this vehicle it is time for a new wahter pump and timing belt anyway. You could be overheating because of a bad water pump, if its leaking or the impeller is actually broken on the inside. The pump won't work. First check the coolant level, Please do this when your vehicle is cold, if it low add coolant. check this from the radiator it self. Can't stress enough make sure the ENGINE IS COLD befor you take off radiator cap. I don't think its your thermostat becuse when youare driving the car is fine, but it won't hurt to check and make sure its operable.Godd Luck

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