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It was a bad thermostat 95TwinTT: I realized that the heater barely was putting out heat, so the temp guage wasn't bad, the engine just wouldn't heat up. First checked for an air bubble that might have caused the coolant sensor to not respond by removing it (it is right next to the...

I just replaced the therostat in my 1995 Tahoe 5.7l. Three wires were grounded on the nut that goes on one of the thermostat bolts. I had to replace these. I double-checked the new electrical eyelets that I repaired and they seem fine, even jumped them directly to the battery neg and still...