Re: Defective Thermostats
Up until about six months ago we were acquiring thermostats from the local GM dealer. I never received a defective thermostat from GM. Over the past two years the GM price increases have added up to a ridiculous level. That drove us to acquire them from other parts suppliers.
It’s easy to tell if you get a bad one. Push up on the bypass valve seat. The difference between the correct five pound spring and the incorrect one pound spring is pretty stark.
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