engine shuts down with defrost or A/C on on GMC Envoy

Average mileage: 131,065 (10,000–215,000)
6 model years affected: 2002, 2003, 2004, 2005, more2006, 2007
43 people reported this problem
27 people shared problem details
i had this problem for a while( my personal vehicle). The truck would go into reduce engine power mode at first. Turn the engine off and restarts with no prblem. I ignored it just didn't use defrost or A/C. Than as time went on(months)it got cold here in Philly and i needed my defrost.This time the truck shut off. turned off defrost and it started right up and ran normal. i looked for vacuum leaks. not many hoses to check. finally found advice via youtube to remove throttle body and clean it. I used Brakekleen and cleaned throttle plate very dirty. reinstalled and checked. Problem Fixed!!!! Quick!Easy!and Cheap! Thanks Youtube
2004 GMC Envoy120,000
engine will begin to die when A/C is on and car in or out of gear. I turn off the A/C and it runs fine and if it goes dead it will crank back up with no problem.
2004 GMC Envoy134,840
My 2004 GMC Envoy vibrates when I turn the air conditioner or heater on . It stalls while I'm driving it and it scares me and makes me think that I'm going to break down . I just put a brand new battery in and it still stalls . I smell fumes of gas.
cannot turn on the air or heater the car will shut off
2004 GMC Envoy126,000
Heat, A/C, and defrost cause engine to stall and shut down.
2003 GMC Envoy168,000
This solved my problem! THANKS A MILLION!
2005 GMC Envoy203,620
When I take it to repair shop find no numbers but I tell them my problem .no onr get it but when I'm driving run my a/c truck stalls my ABC light been coming on as well and when stop to get gas or anything truck want start. Pat Atkins
2004 Envoy.. When turned on A/C or defrost engine would stall & cut off. I turned off A/C or defrost, cranked & ran fine as long as both were off. Took to shop; had throttle cleaned. No problem since.
2005 GMC Envoy135,000
Vehicle runs fine till the ac is on whole car vibrates has new throttle body and pedal 5000 miles ago Have had nothing but electrical problems from day 1
2004 GMC Envoy100,000
The vehicle will shut down when A/C is in use, I have not tried with the defrost. I get an alert for low oil pressure and it will stop in the middle of the road. The steering wheel will lock up and I have to put it into Park. It does always restart.
2004 GMC Envoy85,000
when a/c on the vehicle will at times shut off
2005 GMC Envoy115,079
I have this problem. Trying your solutions now
2003 GMC Envoy161,711
Ever time I turn my ac on my car cut off if I don't have my foot on the gas
2003 GMC Envoy215,000
Every time I turn on the AC my SUV turn off. Not sure what causing this issue. But it restarts and I can drive without AC.
Same problem turn on heat/defrost/ac car shuts down. Turn it off car starts right up... driving me crazy
2006 GMC Envoy136,000
Every time i turn my AC on full blast or to defrost it shuts my car off. If i put the Heater on it works just fine.
2002 GMC Envoy99,000
Cut off when ac is trun on
If I turn my a/c on my truck shuts off. Can't afford to have all the problems this vehicle has fixed.
2005 GMC Envoy130,000
V6 envoy stalls when I turn on the blower motor with or without ac on
My '02 gmc envoy turn off when i used the ac or heat. What i can do
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