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What is PCM

2003 envoy transmission shuts down while driving . Then I turn car off for 20 seconds turn back on then fine for about 5 minutes

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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Anonymous

  • 1 Answer

SOURCE: Why does my heater keep running after I shut my Envoy off?

I have the same problem. I have also been searching the web for a solution. I came across someone saying that it was the heater module located behind the glove department. I can't find now where i read this but it said the part was approx. $150.00. He was having same problem as us, heater wouldn't obey touch commands to turn on/off or when heater did blow it would only blow real low or real high. Like you, after turning off engine blower motor was still running even though it wasn't blowing air out.
I'm tired of paying for things that are not due to normal "wear and tear" on my 2003 Envoy. Let me know if this helps you and how you repaired it. I'll probably have to take mine to the shop but because I'm a "girl" I swear they think I'm crazy with all my Envoy complaints.

Posted on Dec 27, 2008

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Anonymous

  • 1 Answer

SOURCE: car starts but shuts off

Replace the crank sensor. This happen to me

Posted on Sep 16, 2009

Anonymous

  • 1 Answer

SOURCE: 2001 Sunfire will just die

location of pcm on 2001 pontiac sunfire

Posted on Dec 31, 2009

Anonymous

  • 87 Answers

SOURCE: 2003 Tahoe Transmission slips after driving for 5 minutes

i would change the filter and fluid first. Check engine light may give you more anwsers

Posted on Mar 15, 2010

jamie

  • 1810 Answers

SOURCE: Transmission Slipping

sounds like you need AAMCO free estaments from coast to coast as it sounds like you have cooked your trans and will soon need another

Posted on Mar 18, 2010

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1 Answer

My 2003 gmc envoy transmission works in wrecked car but does the same thing when instaled in my envoy, no gears


try changing out the PCM. its responsible for transmission operation. bad PCM means dumb transmission.

Nov 13, 2013 | GMC Envoy Cars & Trucks

1 Answer

2003 gmc envoy - will not move when i put in reverse


Sounds like the pump is going bad inside the transmission.

You could also have a leaking seal when the transmission heats up enough to expand and leak. That or if the electronics controlling the transmission are getting excessive resistance do to a short, that could also cause the problems you are describing.

Nov 24, 2017 | 2003 GMC Envoy

1 Answer

Oil change tech says my idle relearn needs fixing on my 2001 Yukon XL...can my husband do this?


{: ) Anytime the powertrain control module (PCM) or the battery is disconnected, the PCM loses power, or the PCM is reprogrammed, the PCMs learned idle position is lost. The engine idle is unstable when the learned idle position is lost. For a 2001 Yukon XL, you can try these steps: Automatic Transmission
  1. Turn OFF the ignition.
  2. Restore the PCM battery feed. ( IF it was disconnected)
  3. Turn OFF the A/C controls.
  4. Set the parking brake and block the drive wheels.
  5. Start the engine.
  6. Ensure that the engine coolant temperature is more than 80°C (176°F).
  7. Shift the transmission into Drive.
  8. Allow the engine to idle for 5 minutes.
  9. Shift the transmission into Park.
  10. Allow the engine to idle for 5 minutes.
  11. Turn OFF the engine for 30 seconds.
Manual Transmission
  1. Turn OFF the ignition.
  2. Restore the PCM battery feed. (IF it was disconnected)
  3. Turn OFF the A/C controls.
  4. Set the parking brake and block the drive wheels.
  5. Place the transmission in Neutral.
  6. Start the engine.
  7. Ensure that the engine coolant temperature is more than 80°C (176°F).
  8. Allow the engine to idle for 5 minutes.
  9. Turn OFF the engine for 30 seconds.
After the procedure, you can do testing and observations. If unsuccessful, you may repeat the steps.
Also, the best time to relearn idle is after a throttle body clean (from carbon deposits)

Jul 13, 2011 | GMC Yukon XL Cars & Trucks

1 Answer

2003 Tahoe Transmission slips after driving for 5 minutes


i would change the filter and fluid first. Check engine light may give you more anwsers

Mar 15, 2010 | 2003 Chevrolet Tahoe

1 Answer

Car slipped out of DRIVE position only revving the RPM's.


Tranny low on fluid. When you stop or turn it all goes to one side causing the problems.

Jul 28, 2009 | 2003 Chrysler 300M

1 Answer

2003 Envoy intermittent display, radio, ac control, shift, comp.


This sounds like your alternator maybe going bad. When your alternator starts to go bad lights such as headlights, radio lights will go dim wipers will start to move slower but if you cut one of the things off such as the wipers the lights will get brighter for a few minutes then not long the car will shut completely down. Hope this helps.

Jul 22, 2009 | 2003 GMC Envoy Xl

1 Answer

Why does my heater keep running after I shut my Envoy off?


I have the same problem. I have also been searching the web for a solution. I came across someone saying that it was the heater module located behind the glove department. I can't find now where i read this but it said the part was approx. $150.00. He was having same problem as us, heater wouldn't obey touch commands to turn on/off or when heater did blow it would only blow real low or real high. Like you, after turning off engine blower motor was still running even though it wasn't blowing air out.
I'm tired of paying for things that are not due to normal "wear and tear" on my 2003 Envoy. Let me know if this helps you and how you repaired it. I'll probably have to take mine to the shop but because I'm a "girl" I swear they think I'm crazy with all my Envoy complaints.

Dec 01, 2008 | 2003 GMC Envoy

2 Answers

Car stuck in idle


Trying disconnecting the battery again this time for 10 to 15 minutes. Then reconnect and see if it clears the problem.

Nov 28, 2008 | 2003 Mitsubishi Diamante

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