Question about 1992 GMC Sonoma
Replaced the blower motor. you can hear it working on all speeds. if you switch to vent,ac,heat any of those you get very very little air, u can tell if it is hot or cold. please help i could use names and pix of the parts a diagram of the ac system
You need to pull the Heater/AC control and check to see if the mode control switch has vacuum going into it, if not, find out why, the hose goes to the engine through a hole in the firewall on the passenger side, trace the hose, you will see it in that area, follow it to the engine.
Posted on Oct 14, 2008
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Posted on Jan 02, 2017
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