Question about 2003 GMC Envoy

1 Answer

A/C on a 2003 gmc envoy slt.

Hi my A/C isnt working to well. I had the system flushed and recharged. The problem i have is its not turing on all the time. And when it does come on it shuts off on its own. Im thinking its an electrical problem. There are no leaks in the system and there is the proper amount of gas. Also when i turn the ac on sometimes i have to keep turing it off and on to engage. Could it be a bad sensor? maybe the clutch? or my heater controls as i have the auto dual climate zone heater. any help would be appreciated. Thanks

Posted by on

  • cougar99 Jun 08, 2008

    I tried the paper clip test already. Still did the samething. Where is the ac relay located. maybe i need to change this. Also my service engine light is on. The code is 0013 which is exhaust B Camshaft position Accutate Circut open bank 1. I have no idea what this means or where this sensor is located. All i know is the dealer told me there is 2 of them one on each side of the motor and its gonna cost around 600 or more to repair depending if i need one or both. so if you can help me with that too i would appreciate it. After i recharged it, it was working a lot better. now its a matter of getting it on so thats why im thinking the relay. Hope that this info helps. let me know what you think

  • rviesa87 Jun 25, 2008

    Hi I need help with my envoy, everytime i refuel my car and run a few blocks the idle chance, so i have to stop and turn off the car and start again to make the car back to its normal idle becouse if i don't the service engine soon light will come on, or if i keep it in idle for about 10 minutes then run for a few blocks the idle also chance and go up to 900. I wonder what might be the problem with my car.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 625 Answers

The only thing causing this problem thatn i can think of if, will be a defective or intermintant a/c compressor relay, or
if you have the check engine light on or the envoy is overheating
it has a systmes than will shut the a/c system of to prevent engine damage and take load away from engine, so let me know if you have any of this symptoms or if not try to locate the cycling switch most of times it is located on the side of a/c acumulator, if it has two wires only, by pass the wires with a paper clip and if the systems keeps on with no problem the have this switch replace, most of times you don't have to remove the refrigerant to have this sensor or switch replace just turn the a/c on, by oassed like i said and that will keep the pressure low in the system so you can replace the sensor, just make sure it is the low side swich and not the high but if you don;t know how does it looks like i recomend you to buy one and look for the similar on the envoy, any way if you do not need it or not use it
you can always returned with the purchase receip, tht's why i love america always on the customer side, good luck and let me know

Posted on Jun 08, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Fog lights 03 gmc envoy slt not working. How can i located fuse without

There is also a relay ! FOG LP fuse # 11 10 amp location , under hood in the engine bay fuse / relay box . FOG LP relay #39 .

RR FOG LP relay #45 , RR FOG fuse #5 10 amp , location rear fuse box .
The fog lamp relays are computer controlled , by BCM

Mar 27, 2017 | 2003 GMC Envoy

1 Answer

Liftgate hydraulics stopped working 2003 GMC Envoy SLT

Yes this is electrical. Start by checking the fuses.

Jul 19, 2008 | 2003 GMC Envoy

1 Answer


2002 - 2009 GM BLOWER MOTOR RESISTOR - YouTube

? 4:17
Sep 5, 2012 - Uploaded by davesgarage512
I have a 2003 GMC Envoy and my issue is when I shut the blower off it still ... Can this issue also be remedied ...

2004 GMC ENVOY Blower Motor Control Module / Resistor

Nov 28, 2015 | 2004 GMC Envoy SLT

1 Answer

Envoy 2003 slt problem choke

No idea what your even typed here

Problem !
Choke- what does that mean?
Stay 5 minutes or fan running !

Even a very perceptive person like myself,
would have no idea what your up to

Jul 15, 2014 | 2003 GMC Envoy

1 Answer

GMC Envoy 2003 SLT only the parking lights and fog lights work. The low beam and high beam don't work. Please help

Well, the problem is that I dont know the reason, you should investigate. There could be issues with lamps (must get new) or electricity problems (must head to auto-service)

Jun 29, 2012 | 2003 GMC Envoy

1 Answer

I have a 2003 GMC Envoy SLT and all of a sudden my rear axel is alomost on the ground. I can't recall doing anything or going anywhere wher this could have happened. How could be the problem and is it...

Exactly what do you mean the rear axle is on the ground? Do you mean the body in the rear has lowered? Do you have the air suspension system on your truck? If so, you may a leak in the system somewhere or the compressor is bad.

Nov 07, 2011 | 2003 GMC Envoy

2 Answers

2003 gmc envoy slt both power seats stop working

Check fuse --if blown -replace. Posibly wiring connector under seat unplugged.

Feb 04, 2011 | 2004 GMC Envoy

1 Answer

GMC 2003 Envoy SLT my back break lights and tailbar lights stay on when I turn the car off. What could the problem be?

This most likely is a bad or incorrectly adjusted brake light switch. The brake light switch is located under the dash next to the brake pedal arm.

Oct 05, 2010 | 2003 GMC Envoy

1 Answer

Is there any greasing nipples for the GMC envoy slt 2003 ? & If any where are located? squeaking noise at the left front

There are no grease fittings on most of today's cars. The squeaking noise may be coming from a dried out suspension bushing.

Sep 13, 2010 | 2003 GMC Envoy

1 Answer

Coolant level

I see, this is a sign of a good coolant system. there is no problem here. The system is fine. i do recommend flushing the radiator once a year but, your truck is in good condition.

May 24, 2009 | 2003 GMC Envoy

Not finding what you are looking for?
2003 GMC Envoy Logo

1,277 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77202 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides