2004 GMC Canyon "ac heater problems" Questions

...heater or AC is on. Why does it do that? It seems that it is misfiring due to a bad sparkplug, plug wire, or dirty aircleaner. the problem only gets worse when the load of the AC/heater motor is on. ...

...ac blower motor works on high. intermittent on other speeds. The blower motor works on speed 4 when the dial is set on 4. However, on speeds 1,2,3 the blower works intermitently. The motor woks on ...

...AC/Heater blower motor does not work. It only works on the highest setting. The Canyon has an inherint problem with the Fan Power cable being loose. When I say loose...I'm saying that you need to ...

heater or ac fan also slows down until you hit the gas? is this an oxygen sensor or a tune up problem i know this my sound funny but have the battery checked and replaced if even a little weak because

heater/ac motor works intermittently on lees than high speed, works on highest speed blower motor might b going bad bearings inside  mine did same but when replaced it got all speeds back Here ...

ac and heater not working. New Heater core and 1998 Ford Expedition with 139,000 miles. AC and heater not working. Replaced heater core and thermostat. Did not solve problem. You need to but a scanner

heater and the ac problems. If the heater is on you cant shut it off and turn the ac on. And Vise versa but works once in a while. Or sometimes you have to shut the truck off for a while and it works.

ac/heater control doesn't work Speedometer doesn't work and cruise light stays on, ac/heater control doesn't work when trying to turn on ac or heater the cruise light flashing. The fan

...drain drainging the water is probaly the least of your problems you probaly have a heater core problem even though it leaks with the ac on your heater core still particpates in the working of you

...AC and Heater, and Humidifire. And when i use the Heater part after about 10min. A warning sign whit a triangle with an ! in the triangle. Check the heater fuse .and can you try to turn on the ac and ...