Question about 2002 GMC Envoy

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Climate control air conditioner stops working due to incorrect ambient air temperature

2002 Climate Control on GMC Envoy. Does incorrect ambient air temperature affect the inside air conditioner cooling? Mine goes from correct to around 27 degrees and air conditioner stops cooling

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  • Anonymous Mar 30, 2014

    climate control blen door

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Same car, same problem. Press MODE, FRONT and REAR buttons together to reset tempreture. You probably need to replace the sensor GM part number 15047946 it is in the front grill email me for a picture. chris.abbott@gmx.com

Posted on Jun 28, 2009

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Most automatic climate controles use outside temp to operate if you look on the front of the vehicle behind grille or ft bumper there should be a sensor with i2 wires on it most are about 2or 3 inches long and about an inch around if you unplug it and you air works again sensor is bad you can leave it unplugged but system wont work its best without it

Posted on May 21, 2009

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1 Answer

On my 2011Chevy Cruze when it rains my air-conditioner blows out warm air and the temperature on the dashboard says -40.


most likely that the climate control is doing the job that it is set on
the system works by running the ac and the heater together to maintain a set cabin temp
The ambient temp sensor is part of the air intake monitoring system that reports to the ECM so that the correct air/fuel ratio can be obtained for starting and running in all temperatures

Aug 19, 2018 | Cars & Trucks

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Why is my 2003 gmc envoy air conditioner blowing cold air intermittently?


i'd start with getting the obd codes read as should rule out any sensors/switchs that might be at fault

Jul 03, 2014 | 2003 GMC Envoy

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Why is my 2003 gmc envoy air conditioner blowing cold air intermittently? ive read something about the ambient air temperature sensor but would really like to be a little more sure if at all possible


I would be more inclined to check the compressor for proper operation. If it is losing pressure it will give you the condition you are experiencing. Does the ac seem to work better going at speed down the interstate? If yes, your probably looking at a compressor replacement.

Jul 03, 2014 | 2003 GMC Envoy

1 Answer

2007 3/4 ton, duramax, 50,000 miles. Ambient temp. indicator on rear view mirror reading OC and the air conditioner does not work. All fuses for air conditioner check to be ok. Is it possible that the...


Anything is possible on these vehicle's ,given all the electronic's . The first step in the diagnostic procedure would be to hook up a factory or professional type scanner an check for DTC'S - diagnostic trouble code's in all the module's on the vehicle. At lest 10 on your vehicle .Looking at data for affected system's , testing power an ground circuits for the control module incharge of these system's .
Is the HVAC - climate control system automatic or manual ?

The following conditions must be met in order for the A/C compressor clutch to turn on:
• The ambient air temperature is above 4°C (40°F).

• B0159 is for the ambient air temperature sensor.

Taking your vehicle to a qualified repair shop mite be your best course of action .

Dec 17, 2017 | Chevrolet Chevy Cars & Trucks

1 Answer

I have a 2002 GMC Envoy with auto climate control. It won't change the air from the floor to the dash vents when requested. There are times when the air will come out of the dash and the tempera


the load ratcheting sound is likely the mode door actuator. It is contains a small motor with gears that turns the mode door to the various positions. Those gears can strip and cause the noise you hear. It is fairly simple to look and feel around under the dash to locate these actuators. There are a minimum of three depending on what climate control you have. There will be one for the temperature control, one for the mode control and one for the fresh air control.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Sep 20, 2012 | 2002 GMC Envoy

2 Answers

Air conditioner comes on briefly then stops. The temperature gage on the panel which shows outside temperature is inaccurate sometimes giving a display of -27 degrees.


Well the outside temperature gauge is generally not wired into the a/c. The internal temperature is more important but is not displayed as such. The 'internal' temperature sensor is used to regulate the a/c blending door and blower speed.

When did the cooling problem start?

Aug 10, 2010 | 2002 GMC Envoy

1 Answer

2002 GMC Envoy..Air works fine out of passenger side but blows hot air out of Driver side


blend door actuator needs to be replaced. dual climate controls have one for each side.

Jul 18, 2010 | 2002 GMC Envoy XL

1 Answer

Gmc envoy 2002 recomennded oil type?


The overwhelming response on GM Envoy forums is Mobil 1 Synthetic motor oil.

The recommend includes using Mobil 1 0W-40 all year. It will give you outstanding protection at low ambient temperatures as well as at high operating temperatures.

Envoy enthusiasts also recommend K&N or Mobil 1 Extended Performan oil filters.

Feb 05, 2010 | 2002 GMC Envoy

1 Answer

Climate Control Outside temperature display incorrect


you need to replace the ambient temperature sensor or do the math

Sep 13, 2009 | 1999 Oldsmobile Intrigue

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