Mechanics

OVER HEATING

1997 Cadillac El Dorado • V8 FWD Automatic • 151,000 miles

1997 Cadillac only overheats when going up hill, long hills like over the Rockies, why? It never overheats around town, basically flat surfaces.
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Rdrawz@gmail.com
December 14, 2010.



Are the cooling fans on when it overheats, or do they come on with A/C request? If the cooling fans are operational, I would recommend a block test for combustion gases in the cooling system.

Factoryjack
Dec 15, 2010.