Question about 2004 GMC Envoy

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No power to any electical unit just starts

Boosting a truck and everything went dead on the envoy no heater, power windows radio the unit would just start

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  • 53 Answers

It can be either relay or fuse issue. Get both of them checked.



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Posted on Nov 05, 2012

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Posted on Jan 02, 2017

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SOURCE: Ignition key cannot be removed, engine cannot be

check battery and replace if required.

Posted on Oct 21, 2009

  • 1 Answer

SOURCE: The other day I went

Did you touch the acceleration pedal, if you did it could be fuel build up. Does this happen all the time when you start the truck. If so it could be valve seal that are leaking.

Posted on Sep 05, 2008

jimboz4
  • 305 Answers

SOURCE: i have a dead radio in my 2004 envoy. no

there may be a small inline fuse at the back of the radio itself.....you will see it when you remove the radio, this is to prevent overload

Posted on Oct 07, 2009

wireguy212
  • 1627 Answers

SOURCE: Electrical Problem - dead battery

Sounds to me like you may need a new rectifier put in the alternator,a shorted diode in the alternator could be powering up things that should go dead with the key in the off position.To prove this,instead of pulling the fuse,take the plug out of the alternator and if all is well,you have your answer.

Posted on Jun 09, 2010

  • 67 Answers

SOURCE: What does reduced engine power light mean

this model has what they call fly by wire.. no accelerator cable. If the computer detects a problem in the thottle system it will not allow the engine to accelerate and will show reduced power and possibly set a check engine light. The dealer usually wants to replace the throttle assembly which is very expensive and usually un nessesary.
I have had a lot of succes with just cleaning the throttle plates real good.

Posted on Jul 08, 2010

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1 Answer

When I turn my key to start I get nothing. No lights, radio, interior lights, nothing


sounds like you need a battery check first, if ok possibly bad connections on battery terminals, possibly duff starter motor or solenoid, failing all that a dead short somewhere maybe need an auto electrician to check it out.

Oct 04, 2016 | Cars & Trucks

1 Answer

I have a 07' MK5 GTI and i need help figureing out why im getting absolutly no boost. ive used the vagcom reader and it threw some codes that i have no freaking clue about please help me.


so,you have Malfunction 0010 03-ABS Brakes -- Status: Malfunction 0010 04-Steering Angle , Status: Malfunction 0010 0F-Digital Radio -- Status: Malfunction 0010 15-Airbags -- Status: Malfunction 0010 42-Door Elect, Driver -- Status: Malfunction 46-Central Conv. -- Status: Malfunction ,start by repairing these codes to figure out your boost problem

Apr 26, 2015 | Volkswagen GTI Cars & Trucks

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Access code for 2003 envoy radio


costs money, it will never be free.
only how much and trouble are the variables.
is this SAT code? or is the radio bricked, from car battery dead.
if radio is dead, in all ways that is bricked.
aka: theft deterrent mode, asking for password.
http://www.fixkick.com/power-elect/Keep-Alive/keep-alive.html

Jun 11, 2014 | 2003 GMC Envoy

1 Answer

Jumped a car, now i do not have power to windows door locks, radio a/c heater, dash board lights, radio or alarm, what can i do to fix


try disconnecting your battery ... completely... touch the battery cables together while they are both DISCONNECTED, and this should reset and clear your computer. Reconnect everything and try. If this doesn't work, you probably destroyed your computer by jumping the other car off.

Feb 05, 2013 | 2005 GMC Envoy

1 Answer

I just bought this car yesterday. Went out to start the car and it wouldn't start. I turn the key in the ignition and the radio, heater and lights come on, but the engine won't start.


have you try giving it a boost ,if so and started your battery is dead ,also check alternator by disconnecting the pos, side of battery if it turns off is the alt ,bad

Mar 06, 2011 | 2005 Chevrolet Equinox

1 Answer

I have a 2001 grand am just changed the spark plugs everything was working fine never had any problems with it sometimes it would be alittle hard to start but this time i went to start it i thought i left...


starter/soleniod..give it a tap with a hammer a few times and then try..both of them 1 at a time to see which one it is..u can check if u have power going to it first..if not it might b ur fuseable link of even ur starter relay..

Jan 07, 2011 | 2001 Pontiac Grand Am SE

1 Answer

I have a dead radio in my 2004 envoy. no


there may be a small inline fuse at the back of the radio itself.....you will see it when you remove the radio, this is to prevent overload

Oct 07, 2009 | 2005 GMC Envoy

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