| Thermostat opens early? [message #300184] |
Thu, 05 May 2016 10:09  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
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Senior Member |
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When lat out, the driver (Mary) reported to the engineer (me) that the engine temperature was down again where it used to run. That was about 160°F. I changed out that thermostat a year or two ago. Now it was there again. So, I drained a gallon of coolant, removed the T'stat (it was closed) and did the pot-on-stove test. It opened at about 160°!
This was a first for me.
I have had them fail open and fail to open even in boiling water. But this was new.
Auto Zone had one.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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