Question about 2002 GMC Envoy

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Changed the battery. When riding and slowing down the vehicle cuts off. Doing fine until the battery went dead. 2002 GMC Envoy

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WHEN EVER YOU DISCONNECT THE BATTERY.THE PCM WILL LOSE IT MEMORY PCM HAS TO RELEARN IDLE POSITION.SOME TIMES DRIVE AROUND BLOCK FEW TIMES CAR WILL RELEARN TO IDLE.IF NOT GO TO DEALERSHIP.THEY WILL RESET IDLE.USING A T ECH 2 SCANNER.THEY PROBABLY CHARGE YOU $35.00 OR LITTLE MORE.

Posted on May 18, 2011

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Posted on Jan 02, 2017

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1 Answer

Air suspension gmc envoy


The actuator rod and ride height adjuster is stuck it is located on the axle to frame of the vehicle remove rod to adjust back down then re install after cleaning the adjuster of debri if still not working correctly replace actuator

May 20, 2013 | 2002 GMC Envoy XL

1 Answer

2002 Envoy died, no power to anything. No click when trying to start it... just nothing. What the heck could it be? I'm thinking alternator. Before it died tonight, if I were to be pushing the


Sounds like your alternator went out or not making good connection at the battery terminals, preventing the battery from being charged. If the battery does not charge, you will use up the battery energy to maintain the vehicle running UNTIL you deplete the battery. the more accesories you have on, the faster it discharges till the point of killing your ignition on your engine. You definitely have a charging issue, more than likely, your alternator went out.

Jun 23, 2012 | 2002 GMC Envoy

1 Answer

Hello I have a 2002 GMC Envoy and my reduced engine power light comes on and now when I drive the car acts as if it wants to? stop what going on


There is nothing you can do to fix this at home, it needs to be diagnosed by the dealer with a special tool

Jun 08, 2012 | 2002 GMC Envoy

1 Answer

Reduce engine light came on in my 2002 envoy and it feel as if the truck is not getting any power, why is that? the truck slowed down so i pulled over cut it off an started it back up. after starting back...


Reduced engine power is just like a safe mode. First things first, clean your throttle body. It's possible the butterfly is sticking. Disconnect the battery, clean your throttle body with throttle body cleaner, must be nice and shiny. When finished, drive around for 20 minutes or so with all accessories off. This will allow the computer to relearn a properly functioning throttle body.

Mar 25, 2011 | 2002 GMC Envoy

1 Answer

2005 GMC Envoy key is stuck in accessory position in the ignition with dead battery and transmission stuck in park. Will replacing battery help or is it security system lock down? If it is the security...


Jump starting the battery may be all you need. If this vehicle was not in park when the battery went dead and when you got in to start it it was dead. You then probably put it into park trying to start it.
But the issue at this time is if it was in neutral when the battery went dead the you changing the selector to park may not actually have placed the transmission in park. With electronic gear selection it actually need power to the system to place the transmission in park.
Without it really being in park the key may move to the lock position.
A bit of quess work here but I hope for you I hit the mark.

May 20, 2010 | 2005 GMC Envoy

1 Answer

I have a 2002 GMC envoy, when I come to a stop about 2 ft. from dead stop my front end thunks.


my envoy was doing this too, i went all through my brakes and it still did it, i noticed a bad tie rod end and after i changed it and had an alignment done i dont hear it anymore, so check tie rod ends for play and also check the sway bar end links

Nov 08, 2009 | 2002 GMC Envoy

1 Answer

Electrical problems vehicle goes completely dead then after jump appears fine as if there was a short somewhere.


Or more accurately: an open somewhere...

Be certain to full charge and load test the battery, clean battery connections with rough sandpaper.....

It is these items that are perhaps 95% of this type of complaint are found.

Oct 10, 2009 | 2002 GMC Envoy

2 Answers

Replaced battery on 2002 gmc envoy. now it goes dead when air is


your alternator may be the problem here. When the AC is on, the motor has to work harder, and the fans need eletricity to spin (unless they are powered by a belt, unsure). If the alternator can't keep up the battery will die.

Aug 15, 2009 | 2002 GMC Envoy

1 Answer

Key will not unlock door


the lock on the driver side could be damaged or some on might have used a jimmy to open that door before how evr you have to open the pannel and remove the lock cylinder part and make sure that the key is working or yo must change the tumbler s in the lock to fit your key (lock smith)

Nov 19, 2008 | 2002 GMC Envoy

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