So I have a 2001 silverado. To start off, my ac blows super cold and all the electronics work fine. My problem is that my heater blows cold/barely warm on any setting. I replaced the radiator due to a leak. Since it was summer time and I had jus bought the truck I dont remember the heater workin or not before the replacement of the radiator.
The heater will blow somewhat hot air only when the engine is around 200 and the setting is off but set to heat.
My coolant is full also.
Hope I explained it good enough. Thanks for any help on what the problem could be.