Yngwytprik
Newbie
1998 5.7 2 door tahoe. When i got this thing the blower motor was stuck on high. Not many complaints since its winter but obviously i wanted it functional. So i ordered a new “climate control panel”. And threw a new blower motor and resistor in with it just to since there cheap parts. The heater blew good and hot with the faulty control panel but now that i put the new blower motor, blower resistor, and climate controls in the air blowing out isnt getting hot. Its warm but not hot. I checked all 3 actuators under the dash and all seem to be working fine threw all the options on the control panel. If i turn the temp knob to the cold side the air gets cold, turn it to the hot side i can watch the motor turn all the way hear the door move and the air gets warm but not anywhere near as warm as it was before i installed the new parts. That lead me to looking at the heater hoses, theres a little valve right before the fire wall with vacc lines running to it. I found a vaccum leak there, fixed it and still no heat. Both heater hoses are hot but one is a little cooler than the other. Heater core is hot. Why did it blow hot enough to crack the window for cold air 2 days ago but with these new parts it wont?