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Old 01-28-2022, 06:26 PM   #17
cmitchell17

 
Drives: 17 2SS, 8L90, Cam, Heads, E85
Join Date: Dec 2016
Location: US
Posts: 1,204
So if I can remember mine used to only get to around 170 F or so. I had to replace my thermostat with a new GM PN, after I did that I get the normal 200F operating temperature. Apparently there is an issue with the older PN that must not allow it to fully close.
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