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- #441
Had the same cooling issue with respect to temps - swapped out my thermostat and all gaskets and hoses. My thermostat was indeed broken and stuck open, so truck never warmed - using an IR therm, the top hose to the heater core wouldn't get much above 140 degrees. Result of swap, things are much better now. Heater is blasting hot air like a furnace now - 20 F outside yesterday and actually had to turn heat down!
Thank you! That IR measurement is really helpful, I'm going to compare to my truck ASAP. I'm definitely going to do the thermostat and hoses... I just have to start compiling a list of heater hoses that are still available.