Question about 2004 GMC Envoy

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2004 envoy starts then shuts off and after that I turn the key and it will only crank not start

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  • GMC Master
  • 5,316 Answers

Could be bad electrical part that works for a bit while cold, but fails as it heats. Coil, ignition module, cam/crank sensor.

Posted on Jul 31, 2015

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Posted on Jan 02, 2017

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SOURCE: veh wont start

by looking at the wiring diagram for your truck. the pcm1 fuse only feeds the pcm so most likely it is a grounded wire between the fuse block and pcm. follow the wire harness closely between the two and see if its grounded somewhere. also try disconnecting the pcm and see if the fuse still blows. that would isolate the problem to the wiring. it is highly unlikely that the pcm would cause the problem.

Posted on Nov 27, 2008

  • 1 Answer

SOURCE: ignition key 2004 envoy

I had same problem. I would sometimes also leave the door open with lights on inside for 5 mins - then I could not start car, and key would not release.

I had a bad cell in the battery. Replaced the battery and all worked fine.

Posted on Apr 19, 2009

Ironfist109
  • 3018 Answers

SOURCE: my 2004 envoy is hard to start. It cranks for 30


  • Yea, actually that's exactly what could be the problem. 50 pounds is perfect but the pressure should be maintained around no less than 45 pounds or so in the fuel rail key off or not if the one way check valve in the pump is working properly. The other thing that can cause this is a cracked fuel injector or a bad 'O' ring for a fuel injector causing a leak.

  • I am pretty sure that on your vehicle the whole pump assembly has to be replaced and this includes dropping the tank.

  • Hope this helps and thank you for using FixYa.

Regards, Tony

Posted on Jul 27, 2011

  • 14036 Answers

SOURCE: key stuck in 2004 gmc envoy and car will not start

make sure battery is 12.6 volts. if not you not going to be able to get transmission go all the way in park to remove ignition key.when you press brake pedal it energize brake transmission shift interlock to get transmission all way in park to remove ignition key.if all is good battery is 12.6 volts.sound like ignition switch lock cylinder broken more likely.

Posted on Nov 07, 2011

redds55
  • 2620 Answers

SOURCE: 2004 gmc envoy lights on dash but will not crank

Yes more than likely its the ignition lock cylinder

Posted on Nov 07, 2011

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1 Answer

The engine will crank but will not start why?


Do you have any codes or an engine light on, in your dash board ? Have you checked for spark at your plugs ? There are many things that could cause a vehicle to not start. Bad camshaft/crankshaft sensors. Poor ground wiring. Defective spark plugs or wires/coils.

Nov 22, 2016 | 2004 GMC Envoy

1 Answer

I have a 2004 gmc envoy and the security light came on what does this mean?


  1. 2004 GMC Envoy Security light car not start - Questions - Fixya

    www.fixya.com > ... > GMC > Envoy > 2004 GMC Envoy...will not start replaced ignition switch and car will not turn over. Is the security light on ?If your truck has a pass key system, the sensor in the lock may not be ...
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Jul 15, 2015 | GMC Cars & Trucks

1 Answer

My 2004 envoy will not start and all the lights come on..but sterring wheel is not locked asnd gear shift will not move


Lots of possibilities, but based on the information you've given, the most likely scenario is that the battery voltage has dropped too low to engage the starter. It may still be strong enough to turn on dash lights, interior lights or even headlights, but those draw far less power than the starter. That is assuming it is not 'turning over' based on you saying it will not start. If it turns over (cranks the engine) normally, but still will not start, then that is different. The gear shift on most vehicles will move if you have the key turned to the on position, but I cannot be positive about a 2004 Envoy, so that part seems a bit odd. The steering wheel should be unlocked when the key is in the on position, so that part is normal. If it is a battery problem, that could have been caused by some other issue (failed alternator, for example), or could have been as simple as lights being left on. I hope that helps.

Jul 20, 2014 | 2004 GMC Envoy

1 Answer

2005 gmc envoy, while at idle or driving under 25 my car will shut down, the dealer can't find anything wrong . doenst happen all the time but does do it. I was on interstate and traffic was at about 25-30...


GM used an automatic starting function on the envoys. The engine cranking after you let go of the key is normal operation. Under normal conditions you wouldn't notice it, but because the engine is not starting up immediately, it continues to crank in attempt to start the engine.
As far as the engine stalling goes, some basics that come to mind for the envoy are:
1) Is the throttle body dirty? A dirty throttle body can cause stalling at lower engine speeds.
2) Is there a vacuum leak at the engine? A vacuum leak can also cause stalling at lower engine speeds, depending on the severity of the vacuum leak.
3) Has anyone checked the fuel pressure? A fuel pump that's on it's way out can also cause stalling problems.

Sounds like this thing needs some quality diagnosis by a good driveability technician :)

Oct 08, 2013 | 2004 GMC Envoy

1 Answer

2004 Envoy XUV doesn't always crank.


I want to see if i catch your drift ! When you turn the key in the ignition switch to start , nothing happens ? Have you tried moving the gear slector to the neutral position to see if it starts then ? Park neutral safety switch problem , maybe .
Here is a description of how it works or how it's suppose to work .
Circuit Description (ECM/PCM Controlled)
Moving the ignition switch to the START position sends a 12-volt signal to the engine control module (ECM)/powertrain control module (PCM) Crank Request circuit. The ECM/PCM verifies that the transmission is in the PARK or NEUTRAL position. With the transmission in Park, voltage flows through the Park/Neutral position switch and feeds the starter relay coil. The PCM then grounds the control circuit of the starter relay. When the starter relay is energized it allows battery positive voltage to the starter solenoid S terminal. On some vehicles the starter will continue to crank the engine with the key released until it starts or the crank command has timed out to prevent excessive heat build up in the starter circuitry or the ECM/PCM receives an engine run flag.
Circuit Description (BCM Controlled)
Moving the ignition to the START position signals the body control module (BCM) that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the powertrain control module (PCM) requesting engine start. The BCM also energizes the RUN/CRANK RELAY. When the RUN/CRANK RELAY switch side closes, and the vehicle is in Park or Neutral or with the clutch is fully depressed, if equipped, supplies voltage to the starter relay coil. The PCM verifies the transmission is in Park or Neutral and the clutch is fully depressed, if equipped. The PCM will then ground the control circuit of the starter relay, closing the switch supplying voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key released until it starts of the crank command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag.

May 13, 2017 | 2004 GMC Envoy

2 Answers

My 2004 gmc envoy starts but shut off after 1 or 2 seconds


Is there a Security light on the dash? Does it come on when the engine stops? If so, it could be having trouble reading the ignition key code. You would need to have that checked by a dealership.

Nov 13, 2011 | 2004 GMC Envoy

1 Answer

I lost the key & transmitter for my 2004 Envoy. Had a new key made at the GMC dealer. Worked great one time. Tried later and it seems the alarm set itself. Cannot get the alarm to disengage thus...


Ignition keys relearn takes about 30 min to do. 30-Minute Learn Procedure 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON; the vehicle will not start. 3. Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF. 4. Turn OFF the ignition switch, and wait 5 seconds. 5. Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK Important: Turn the Ignition Switch OFF. The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. 6. Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password. 7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles. Without a scan tool you may have momentary starter interruptions while history clears itself.

Nov 17, 2009 | 2004 GMC Envoy

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