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TOYOTA TRUCK OVERHEATING


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davenowak
Anonymous Poster
dmnow@comcast.net

Mar 13, 2007, 5:07 PM

Post #1 of 3 (2296 views)
TOYOTA TRUCK OVERHEATING Sign In

 I have a 1991 Toyota pickup,2.4 L a/t. I keep losing coolant but there is nothing leaking on the ground or squirting from anywhere. I have changed the water pump, thermostat, radiator cap, belts and hoses. I have had to add a gallon of coolant about every 3 days. When I add the coolant the temperature gauge stays at one notch above C. After 2-3 hours of driving the needle is near the red H and I can add about 1/3 gallon of coolant. And then it runs normal for another 2-3 hours. What is it? Where is the coolant going?


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 13, 2007, 5:24 PM

Post #2 of 3 (2291 views)
Re: TOYOTA TRUCK OVERHEATING Sign In

A bad head gasket or head can do that with almost no visual signs. Checking that all plugs look the same can help rule that out. There can also be leaks that only happen when warmed up and leave little evidence, T



Willybill
User

Mar 13, 2007, 5:25 PM

Post #3 of 3 (2291 views)
Re: TOYOTA TRUCK OVERHEATING Sign In

A bad head gasket would let the coolant into the oil or the combustion chamber. In the oil it will make a gray mess. As much coolant that you are adding I would look at the tail pipe and see if the coolant is coming out there. It may smell sweet and like coolant and also put out a white cloud as it vaporizes.






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