2002 Jeep Grand Cherokee "replace ac heater switch" Questions

replace a few vaccum lines that had been broke in half. Well, now my heater works great in every position (Front Vents, Bi-Level, Recirc.) EXCEPT defrost and defrost and feet. When I switch it over to

...to a vacuum reservoir tank under the hood and then through the passenger side firewall to dash, if ok pull the ac/heater control and replace the vacuum mode control switch, it is a dealer only

...ac switch set to off and dial turned all the way to max heat position. I have traced it some and under the hood going into the firewall there are 2 heater hoses about 1/2" in diam. 1 is hot and the ...

...AC WORKS ON SWITCH AND WHEN YOU TURN IT TO HEAT IT GETS A LIL WARMER THEN THE SWITCH IS OK REPLACE HEATER CORE THEY DO ROT MAINLY IF YOU USE WATER IN YOUR RADIATOR AND NOT ANIT-FREEZE THE ANTI-FREEZE ...

...ac's cold air. System is vacuum controlled check for vacuum at the switch you replaced If it's there then check the blend door motor (moves the "flapper") If motor is good, then the door is stuck and ...

AC/Heater blower fan stops blowing air into the cabin when I accelerate. I have a 1998 Jeep Grand Cherokee and the AC/Heater blower fan stops blowing air into the cabin when I accelerate and step on ...

AC Blower switch only runs on the high speed, Will not operate on lower speeds Heater blower motor resister is bad, common problem. resister controls blower motor speeds. replace resister.

...ac switch set to off and dial turned all the way to max heat position. I have traced it some and under the hood going into the firewall there are 2 heater hoses about 1/2" in diam. 1 is hot and the ...

AC is working I can feel the cold air when i am driving but the fans will not blow Tap on the fan with the A/C on if the fan turns on replace it . If the fan doesn't turn on. Check burnt power wire to

...AC fan wont turn off i just bought a 97 laredo and i noticed that the fan doesnt turn off when switched to that postion....every other setting works fine (i.e. defrost, floor) and the speed setting ...