AC only workds intermittently

Asked by Jun 20, 2014 at 02:20 PM about the 2002 GMC Envoy 4 Dr SLE 4WD SUV

Question type: Maintenance & Repair

My 2002 Envoy air conditioner sometimes works, and sometimes doesn't. When it workds the air is freezing cold so I know it's not out of refrigerant.My wife says it works great going downhill but not so great going uphill. If you kick into passing gear and the interrupter switch kicks in, then the airconditioner quits working all together,meaning it never comes back on. Haynes manual says you need to take it to a dealer because everything in the HVAC is operated by a computer. I am currently on sick leave and can't afford that. Any suggestions?

1 Answer

237,925

Could be low refrigerant, worn clutches on the AC compressor, but I'd just be guessing. You don't have to take the car to the dealer, any local mechanic that does AC work can help you out and save some money instead of paying dealership prices.

Your Answer

Add photo

Related Questions

  • Intermittent buzzing 3 answers

    I get an intermittent buzzing noise accompanied by lights varying in intensity. I never know when it's going to happen, but it seems to occur at speeds in the 40s. It also feels as if the brakes are...

    2007 GMC Envoy Denali 4 Dr SUV 4WD

    -

    Maintenance & Repair

  • 2002 envoy while driving wil get an intermittent ratcheting sound from rear of car any ideas 3 answers

    2002 GMC Envoy 4 Dr SLE 4WD SUV

    -

    Maintenance & Repair

  • intermittent battery drain 1 answer

    2010 GMC Sierra 5.3L V8 with only 52,000km has been experiencing total battery drain and dealership has recommended battery replacement. Battery was replaced at 50,000km and it happened again. Truck...

    2010 GMC Sierra 1500 SLT Ext. Cab 4WD

    -

    Maintenance & Repair

  • My 2004 Yukon 4wd the "traction active" warning displays intermittently, 3 answers

    It happens about 5 or 6 times a week. when it comes on the car hesitates for a couple of seconds and then regains power. Then the display warning goes off. This is happening on dry pavement and t...

    2004 GMC Yukon SLT 4WD

    -

    Maintenance & Repair

  • AC 1 answer

    My 2013 Ram 1500 AC intermittently stop blowing cold. If I turn the motor off and restart, it woks properly again. What causes this?

    Dodge Ram 1500

    -

    Maintenance & Repair

Search GMC Envoy Questions

GMC Envoy Experts

#1 ericjames
ericjames
Reputation 380
#2 dandyoun
dandyoun
Reputation 370
#3 Js08016
Js08016
Reputation 310
View All

Related Models For Sale

Used Chevrolet TrailBlazer
103 Great Deals out of 4,581 listings starting at $1,150
Used GMC Envoy XL
17 Great Deals out of 683 listings starting at $400
Used GMC Yukon
374 Great Deals out of 18,226 listings starting at $2,950
Used Ford Explorer
944 Great Deals out of 72,519 listings starting at $1,000
Used Chevrolet Tahoe
548 Great Deals out of 29,234 listings starting at $1,699
Used Jeep Grand Cherokee
1,023 Great Deals out of 74,887 listings starting at $750
Used Ford Escape
1,391 Great Deals out of 93,563 listings starting at $1,250
Used Dodge Durango
274 Great Deals out of 22,704 listings starting at $1,200
Used GMC Sierra 1500
822 Great Deals out of 68,199 listings starting at $2,484
Used Nissan Pathfinder
264 Great Deals out of 22,735 listings starting at $1,995

Used Cars For Sale

2005 GMC Envoy 4 Dr SLE 4WD SUV For Sale
3 Great Deals out of 84 listings starting at $2,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.