Question about 2005 Chevrolet Silverado

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Heat flowing on passenger side only

With both dials in the hot position, hot air only comes out on the passenger side, Air conditioning works well on both sides

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Your actuatior foe the drivers blend door is stuck. try unhooking battery for a few minutes have both on heat and hook back up and start up. the actuators will run thru a learn mode and sometimes this will free up.if not you will need an actuator

Posted on Dec 09, 2008

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In addition to faulty actuator motors, the blend door itself can also be broken. This happened on my Tahoe. Typically it is a very labor intensive and costly fix to replace a broken blend door, as the dash must be removed and the plenum assembly replaced. There is a DIY kit from heatertreater.net that provides steel hardware as well as instructions on how to perform the repair by removing the glove box rather than the entire dash.
This is also an alternative to replacing the 'difficult to access' top actuator motor underneath the dash. The kit contains a single blend door which converts the dual control to single control, and is operated off of the bottom actuator motor, which can be accessed by removing the glovebox. If you are having issues with your blend door, or the 'top blend door actuator motor behind the dash' it is worth looking into.

Posted on Dec 14, 2011

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1 Answer

When air conditioner is turned on the drivers side blows cold air and passengers side blows hot air, rear dual air blows cold air in to back passengers area.


If your sure you're looking at the right motor, Then the door is broke. Dash and plenum have to come out to fix it. Not a cheap fix.

Jul 02, 2016 | 2010 Ford Flex Limited

2 Answers

Got a1997 cadillac deville got heat on passengers side no heat on drivers side could you tell me the problem.no defrost on drivers side either help please


DTC B1340 Air Mix Door #1 Movement Problem !
The heater and A/C programmer supplies voltage to an internal motor that drives the air mix door. The heater and A/C programmer monitors the air mix door position feedback from a sensor on the motor. If the air mix door is requested to move but the feedback voltage does not change, the heater and A/C programmer will store DTC B1340. If the air mix door feedback indicates that the feedback is near the hot or the cold extreme, the DTC will not set. Evaluate the operation of the air mix door through self diagnostics as described in the test description.
Test Description
Perform the Diagnostic System Check before continuing with the diagnosis of this DTC.
A Scan Tool allows for the direct control of the air mix door by observing the following conditions:
• The air mix door position feedback value
• The value`s difference from the air mix door commanded position value
These readings indicate a fault internal to the heater and A/C programmer in the air mix door sensor feedback.

Did you perform the Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check
2
With the engine running, connect a Scan Tool .
Turn the dual zone to OFF (passenger temperature offset at 0 or OFF).
Exercise the suspect actuator using the temperature control on the control assembly.
Is the door being commanded (COM) to the proper high and low values?
COM High 100 %
COM Low 0 %
Go to Step 3
Go to Step 4

If you are unfamilier with this , i suggest you take it to a ASE certified repair shop or the dealer .

Jan 25, 2016 | Cadillac Cars & Trucks

1 Answer

2010 dodge journey blows cold air on passenger side


Help with heating issues, blend actuator - Interior - Dodge ...

www.dodgejourneyforum.com/.../5304-help-with-heating-issues-blend-a...
Jan 13, 2014 - My 2009 Journey R/T is only blowing hot air out the driver side vents, while the other vents (passenger and rear) are blowing cold air ... Thanks Frogbox....keep in mind that the info is for the 2009 model and I guess it also applies to2010's. 2009 journy sxt heat/cool issue
Oct 16, 2014
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In a 2010 dodge journey why heat comes out just one side


Jan 10, 2016 | 2010 Dodge Journey SXT

1 Answer

Why is it blowing warm on and off on the driver side and blowing cool on the passenger side?


Here's is a little background and a couple of thoughts. Turning to the background, first. The heater/air conditioner system in your 02 uses the same set of ducts located in the instrument panel. In turn, those ducts are linked to what can be considered miniature version of the cooling system in the engine compartment (yes, this is a greatly simplified version). The whole system, in fact, is run off the main heater/ac system, however, it has a separate series of controls so that it can function properly.

When you dial a temperature, a signal is sent to the heater/cooling system telling the system to open a series of baffles, directing a flow of heated or cooled anti-freeze/coolant to the proper "radiator" behind the face of the instrument panel. In turn, the fan system activates a series of doors behind the instrument panel so that the flow of air is directed through the "radiator" and into the passenger compartment. This is essentially the heater/cooling system work.

Now, you say that the driver's side is hot, while the passenger side is cool. What has happened is that the flow of heated coolant that is supposed to heat the passenger side of the duct system is blocked. Since there is no heat to warm the air that is flowing past the fins of the "radiator," the flowing air remains cool to cold, depending on the weather and ambient temperature. The result is that one side of the car remains cool. And, since the other side of the "radiator" is normal and the air is heated, it is warmed.

That is the most likely explanation for this.

Another possibility is that the baffles themselves are stuck and the coolant that is supposed to be directed to the passenger side is not being directed their.

Either way, your technician has some work ahead.

Jun 05, 2015 | 2002 GMC Envoy XL

1 Answer

Heating, AC and vent problem


The actuator door that is behind the dash that closes off the heater core from shooting hot air thru the vents might be your problem. When you turn on your ac the actuator shuts the door to prevent the air from flowing thru the heater core into the cabin, this may be your problem if everything else is working properly. Let us know.

Oct 03, 2013 | 1995 Buick Park Avenue

1 Answer

Heat does not come out passenger side of the car but comes out drivers side


There is a blend door problem.

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prev.gif next.gif HEATING AND AIR CONDITIONING Refer to Section 1 for discharging and charging of the air conditioning system. The heating system provides heating, ventilation and defrosting for the windshield and side windows. The heater core is a heat exchanger supplied with coolant from the engine cooling system. Temperature is controlled by the temperature valve which moves an air door that directs air flow through the heater core for more heat or bypasses the heater core for less heat. Vacuum actuators control the mode doors which direct air flow to the outlet ducts. The mode selector on the control panel directs engine vacuum to the actuators. The position of the mode doors determines whether air flows from the floor, panel, defrost or panel and defrost ducts (bi-level mode).

Oct 28, 2010 | 1998 Oldsmobile Regency

1 Answer

Automobile air conditioning on max cool, blows hot air on passenger side tried dual climate control settings still cold on driver hot on passenger


I had the same problem when i was working on my 1999 Buick Regal and had to disconnect the battery. I didn't reconnect in the same way that I disconnected the battery from the terminal and noticed that the driver side had no heat or air but the passenger side did. I then disconnected the battery again and reconnected it the same way and now have heat and air on both the driver and passenger side. Hope this helps. Good Luck!

Apr 14, 2009 | 1998 Buick Regal

2 Answers

1998 Volvo S70 2.0L Air conditioner not working correctly


This may be one or two different problems. One could be the climate control unit itself. Surprisingly the problem with the air not changing the source will likely be remedied by a reprogramming by a Volvo dealer. Defrost is the delfault outlet if there is a problem with that system. As for the dial not having detents and the cold instead of hot air in the pass side, that could be programming, a disconnect with the heater door for the passenger side or it could be the control unit. 98 is a difficult year to diagnose and the dealer is likely the only one who can properly diagnose this car. The download at the dealer is an inexpensive fix. If there is a mechanical problem within the air system that could prove more costly. I'm not sure how much the control unit for the climate control system, but there are usually quite a few on ebay. Good luck and I would suggest visiting the dealer first for this one as it is the least expensive fix and could very well be the only problem.

Feb 20, 2009 | 1998 Volvo S70

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