Question about 1994 Toyota 4Runner
There are many possibilities for car overheating.
But as per what you have mentioned in your question ,You have ruled out most of the possibilities by replacing the possible parts for overheating.
But one thing is very common that coolant is leaking.And this is the reason of car overheating.If coolant is leaking then you replace all parts the car will overheat till the coolant leak is not stopped.
It must be leaking from under the valve cover.''the timing cover is leaking coolant''--engines water pump is behind the cover and it is failing.Other possible location from where coolant can leak are, timing gasket $40, valve cover gasket $140, oil pan gasket set $70, and coolant flush pan.
It has to be checked at every location and the leak has to be stopped.Also you can get the coolant pressure test done.With that the exact position of the leak will be identified.At local car auto stores they conduct coolant pressure test.Its not too costly.
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Posted on Jul 05, 2010
First, replace the fan clutch and have the timing set to correct specification. Look for oil in the water or water in the oil. If you find oil or water in the wrong place then you will need to replace the head gasket. Have your mechanic do a leak down test to be sure it is a head gasket problem
Posted on Jul 05, 2010
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Posted on Jan 02, 2017
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