2000 GMC Sierra "defrost hot side car cold" Questions

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Question about GMC Sierra

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...defrost, etc is the one you can see from the driver's side floorboard up under the dash.  It has a big white gear meshed with it's output, can't miss it.  The passenger's ...

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...hot and cold on the passenger side and switch it between defrost and feet, then power off everything for a long period of time using the power button on the control, this finally got the solenoid to ...

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...hot or cold, fresh or a/c, to come thru the vents in the dash. Floor vents and defrost are the only source of air flow. What now ??? Sounds like the lil motor on the bottom side vent is bad or else ...

Question about GMC Sierra

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html-----------Heat blows cold on drivers side and hot on passenger side?http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html----------------This will help.Thanks

...defrost.html  --------Go through the procedure to confirm the issue. ------ Engine Overheats and heater blowing cold? ...

Question about GMC Sierra

1 Answer

...hot-air-on-drivers-side-vents-only.html -------------- Temperature gauge does not move and no heat when heater is ON? ...

...defrost.html  --------Go through the procedure to confirm the issue. ------ Engine Overheats and heater blowing cold? ...

Question about GMC Sierra

1 Answer

...side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html ----------- No heat on car? ...

defrost blows hot. when i switch to just defrost the bottom heater stays on and blows cold air. when i have front dash and defrost on it blows hot but again the heater below blows cold? It sounds like

...hot-air-on-drivers-side-vents-only.html -------------- Temperature gauge does not move and no heat when heater is ON? ...

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