Question about 2004 Chevrolet Silverado 2500HD

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Transmission getting hot - 2004 Chevrolet Silverado 2500HD

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If it's truly getting hot, then you have an issue with the cooler. Most circulate fluid through a coil inside one of the radiator tanks to cool the fluid. Some utilize an external cooler, usually mounted in front of the radiator. If you pull heavy loads, such as trailering, then you really need to install an external cooler. High temp oxidizes the fluid. For every 10deg rise in temp above 170deg the life of the transmission is cut in half. An external cooler isn't too expensive and can save you tons of $$$ in the long run.

Posted on Jun 03, 2010


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Transmission works fine when cold but when transmission gets hot car will not move in drive or reverse


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Order the transmission filter kit and drop the pan.

Add the ATF to the right level.

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If this light does not come on then typically the electronic modulator is at fault and needs to be replaced.
If the check engine light comes on when the vehicle is hot i need this code to guide u further for the repair.
If u want to attempt the repair , be wary. its messy and takes time to do to do it right.

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