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New T-stat bad?
When i did the coolant flush/swap/filter install, I also changed the t-stat as it seemed to be bad, never allowing the ECT to get above 186-188, unless pushed hard.
From the install, the new one did the same. How often does a new one come out of the box bad? What makes a t-stat fail in the first place?
I can replace it, again, but what if something is making them go bad?
Today I did an EOT/ECT check, 46*F ambient, 65mph, ECT 186-188, EOT 194.
Another new t-stat?
'06, XLT, F350 FX4, Auto, Ext. Cab Short bed
Diamond Eye Turbo-back 4" exhaust.
Blue Spring upgrade