i need your help on this one my own self
we changed radaitor & thermastate , now heater blows cold air
This frequently happens when the heater coil is going bad.
thermostat probably damaged or stuck....and worse case scenario....your heater core is going out.
cold air intake
bob is the best
checked antifreeze level???
If the defrost is on, the ac will be on, and the condsensor fan will be on.
You will need to replace the rear expansion block valve and the recharge the system with freon and oil..............
13.5-14.5 when running.
Your average A/C unit blows heat through all vents.
Check your coolant level, If low you need to find the leak.