1999 Oldsmobile Silhouette Thermostat or water pump

Tiny
CAMARO6079
  • 1999 OLDSMOBILE SILHOUETTE

Engine Mechanical problem
1999 Oldsmobile Silhouette 6 cyl Front Wheel Drive Automatic 170, 00 miles

The water temp. Gauge will suddenly and quickly move to the hot side and then after a few seconds it will quickly move back to the cool side and stay for a while and then repeat. I believe it is the thermostat, it is not loosing coolent or overheating, in fact it takes quite awhile to get heat from the heater

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Monday, March 2nd, 2009 AT 7:26 AM

1 Reply

Tiny
JACK42
  • MEMBER

Usually sudden spikes are a sticky thermostat.I would start there. If the level is full then that would be the place to begin, water pumps dont work then stop working

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Monday, March 2nd, 2009 AT 7:31 AM

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