Question about 2007 Chevrolet Uplander LT Minivan
I have checked all fuses and the connections and can find no reason why it wouldnt be working. The front air blows fine. The rear air nor heat blows. And to complicate it, it can be controlled from the entertainment package that was factory but even messing with thatdoesnt seem to help.....I need this fixed asap...takimng 6 kiddos in it to summer camp nest week from our youth group
First start by establishing that you have power it the switch. If so move to the back and see if you get power there when the switch is thrown, If you have power bring a ground wire and touch the case of the blower. If it runs install a new ground source. If remove the blower motor and field test it. If it fails replace it. Nothing will happen unless the motor runs. Remember the front unit must be on so the back will cool.
Posted on Aug 27, 2017
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Posted on Jan 02, 2017
Notorious for plugged heater cores. Also updated plastic restriction couplers mounted at heater core available from dealer. Try back flushing heater core. Run engine till its at operating temperature then carefully hold the inlet and outlet hose breifly with heater fan on high if hoses are nearly the same temp then flow is good , if not then core is plugged.
Posted on Jan 18, 2009
there are separate actuators for the blend doors. one for heat and one for cool. they work opposite and in conjuction with each other, if that makes any sense. ones open, ones close, for each different climate. sounds like the the cold one isn't opening in the rear.
Posted on Jan 29, 2009
you may not have enough refrigerant. a low charge can cause the rear in this dual system to not work for beans. charge with a can of uv and find the leak. fix the leak. evac the system and recharge. i think you take 4 lbs, but check the accumulator sticker. you may want to just change the accum at the same time.
Posted on Jun 15, 2009
SOURCE: 2005 tahoe no air blowing
as long as all the fuses are good.. its probably the blower resistor/module... located next to the blower motor under the pass. side of the dash..
Posted on Oct 13, 2009
I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?
Posted on Jan 04, 2010
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