Mechanics

TEMP LIGHT GOING

1999 Cadillac SLS

Engine Cooling problem
1999 Cadillac SLS V8 Two Wheel Drive Automatic 140000 miles

My temp gauge in my car goes up when driing then comes back to middle then gooes up then down then goes all way hot where say AC off engine hot. Changed thermostat still same problems the car neer steams or bubbles please help
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Brenden1906
November 12, 2009.



Do cooling fans operate?

Docfixit
Nov 12, 2009.