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Virtual Wrench
Virtual Wrench, Toyota Mechanic
Category: Toyota
Satisfied Customers: 14620
Experience:  35 years Master Mechanic
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Customer Question

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Submitted: 9 years ago.
Category: Toyota
Expert:  Virtual Wrench replied 9 years ago.


How long does it take to overheat?

Customer: replied 9 years ago.
Reply to Virtual Wrench's Post: probly about 30 minutes with normal driving
Expert:  Virtual Wrench replied 9 years ago.


The first thing i would recommend is to have the cooling system chemical tested for any signs of hydrocarbons to rule in or out the headgasket.

If none are present, then you will need to consider things like a restricted radiator, either internally, or externally, it can get debris built up in the cooling fins of the radiator, and condensor, if it has AC, reducing air flow thru the radiator.

Also check the fan clutch operation (pretty sure it has one),,,if its not locking up ditect drive when hot, it wont pull enough thru the radiator.



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