Question about 1994 Toyota 4Runner
Next to do is to have a compression test done to check for a head gasket or cracked head problem. IF you have a viscous fan hub attached to the fan then replace that if the overheating occurs at low road speed with high engine rpm or stopped at lights and idling. It may appear to be working when you look at it but it will not drive hard enough to pull air through the radiator when needed.
Posted on Feb 09, 2014
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Posted on Jan 02, 2017
SOURCE: water/oil mixing in 22r engine
yes it can mix, also check the timing cover for rubs from the timing chain. this is the common problem with 22r. many mechanics will tell you its the block but they are just trying to make money.
Posted on May 02, 2009
SOURCE: coolant leaking
Hello Kasalama :
Is it possible to wash off the engine while protecting the distribuutor and other electronics so we can start with a clean and dry engine ? . * Make sure that your radiator is full and that the Radiator/ Coolant overflow reservoir is at the proper level . * I would put a large piece of cardboard on the floor and along with a bright flash light or shop light use it to guide you where the leak s coming from .
If that is not helpful , I would perform a pressure check on the cooling system . The pressure check can be performed as a diagnostic tool . Put the truck in park and apply the parking brake . Attach the pressure diapham and Start the engine . You will have to manually pump it to a specified pressure as indicated on the gauge/ manometer .
The pressure diaphram usally attaches where the " radiator cap " is . Applying pressure can show leaking hoses, pipes and leaks in the radiator or fittings .
Be mindful that you can also have a leaking Intake manifold Gasket .
I hope that this info has been of help to you .
Posted on May 31, 2009
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