Mechanics

ENGINE COOLING DISAPEARING

2004 Hummer H2

Engine Cooling problem
2004 Hummer H2 V8 All Wheel Drive Automatic 80000 miles

Anti freeze resevior drops down a bit now and then, had to add maybe 2 pints in the last month and a half. No external leaks to be found, Truck runs fine.
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Chrisdel
March 9, 2010.




Try looking down around the right and left sides of the front of the engine, see if there is pink dexcool residue. Most often the water pump leaks at the block mating seals, this can be slow enough that it is able to crystallize and not be readily noticed as an external leak.

Factoryjack
Mar 9, 2010.


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