Question about 2002 GMC Yukon XL

1 Answer

Shuts off while driving. no fuel pressure. pcm fuse blows/ fuel pump relay inserted.

Equipped truck with remote start/ custom security system. noticed about a month now that it sometimes wont crank on first two tries wether by remote start or by manually turning the key. had to jump start on couple times. recently while driving it completely shuts down. dash board lights up- traction on/off, security flashes, abs, low fuel, shift selection gone, parking brake and more. i ckecked fuse compartment left of steering wheel and found no blown fuse. i checked fuse box under hood and found ECM1 FUSE blown. i changed it and truck fires up fine. i drive home. next morning i had to jump start battery which fires up on first crank. truck drives for about 4 miles and shuts off. check for blown fuse, ECM1 is blown however this time upon changing the fuse and crankiing the vehicle the fuse just keep getting blown. i went through 5 fuse. my fuel pump will not prime when i turn the key to on. i took out the fuel pump relay, try cranking/ turning the key to on to prime fuel pump and this time the ECM1 fuse stays in tact. got new battery still no good.


Posted by on

  • 4 more comments 
  • Anonymous Mar 13, 2009

    I was driving to go put gas....gas was low. As soon as I pulled into gas station truck shut off. I put gas and would not start again. The gages don't even mark for the fuel I put in or any of the other gages.

  • Anonymous Mar 14, 2014

    tried changing the crank sensor and found the ecm fuse blown. replaced fuse and still wont start

  • Anonymous Mar 17, 2014

    fuse is new and good

  • Anonymous Mar 20, 2014

    car wont start I have changed the ign switch ,changed the fuel pump need to find what the relays and fuse for

  • Anonymous Mar 24, 2014

    Were is the main fuse in fuse bos to truck we think its blown

  • Anonymous Mar 29, 2014

    Have changed every sensor including the bus fuse that runs the whole truck. Got it started went about three hudred feet and shut down . will turn over but will not start. The gas tank has pressure coming out of it making a loud noise and not wanting to take gas. When I turn on the key you can barely here the pump come on for just a second Please help me.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • GMC Master
  • 69,114 Answers

Sounds like the fuel pump is shorted.

Posted on Nov 03, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the fuel shut off switch in my 2002 mazda 626


Your vehicle does not have an impact activated fuel shut off switch like the ford vehicles. Power is provided to the fuel pump by the fuel pump relay. Power is provided to the fuel pump relay by the Main relay. Both relays are controlled by the Engine computer or PCM. The PCM can disable the fuel system by not energizing the fuel pump relay if the immobilizer system has been triggered by the use of a non-authorized ignition key being used to start the vehicle. This should also trigger the security light to be flashing on the instrument cluster as well. Look for that rapidly flashing security light to see if this is the problem.

Nov 10, 2015 | Mazda Cars & Trucks

1 Answer

2003 chevy silverado 5.3 will crank but not start and has no power to the pcm1 fuse


What make vehicle ? You need to find a power distribution chart an see where that fuse gets it power . Some vehicles have a relay that powers up the vehicle . ford has power hold relay , gm on some models has a run / crank relay , Chrysler has ASD - auto shut down relay , Asian vehicles have a main relay etc... But as long as there is no power to the PCM it's not going to start !

Sep 10, 2015 | Cars & Trucks

1 Answer

2001. Why won't it start?


This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/ &

25818609-tcy5fsbooc2pipooq5gev3z2-3-0.png

Aug 12, 2015 | Oldsmobile Aurora Cars & Trucks

3 Answers

2000 Buick lasabre custom doesn't want to start sometimes. When the key is turned all the lights come on,radio works etc.. But it won't even try to start.. Also noticed the clock is reset every time the...


This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

25609907-tjuc4yuqtyhwy1g5ckyd5etn-4-0.png

Mar 27, 2015 | 2000 Buick LeSabre Custom

1 Answer

My 2002 gmc envoy starts with remote but will not crank with keys


The remote start bypasses the ignition portion of the antitheft security system to allow you to remotely start the truck. But the system still needs the signal from the key to allow the vehicle to remain running and drive. I would assume the ignition is bad or needs to be trained to the system if it was replaced.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Mar 29, 2014 | 2002 GMC Envoy

1 Answer

My pcm fuse blows every time i turn on the switch but if a remove my fuel pump relay switch the pcm fuse does not blow 03 alvalanche


fuel pump is bad,your relay will be also from trying to start pump.there is an outside chance your relay is bad,easier to change that first

Mar 28, 2014 | 1998 Chevrolet S-10 Pickup

2 Answers

2002 impala 3.4 L, cranks but wont start


if its not your passlock system then you should get a fuel pump pressure test done on the vehicle

Mar 23, 2014 | 2002 Chevrolet Impala

1 Answer

Pcm


Did you check the fuel pump relay ? The relay gets power from a fuse and also from the PCM relay. The computer grounds the relay to turn it on for 3 seconds when you turn the key on, then only after the computer "sees" RPM or oil pressure.

Feb 05, 2014 | 1997 Ford Explorer AWD

1 Answer

Car wont start but lights come on and bells


If you car is equipped with a security system try resetting it using your remote from outside the car wait a couple of minutes and use the remote to unlock the car, then try starting it, sounds like a security system error.

Sep 08, 2012 | 2001 Saturn L-Series

2 Answers

2003 chevy express 2500 wont crank . . .security light sometimes on . . .


hllo theft system problem most of time you need to change the ignition baril with housing its not cheap dealer parts only lots of time i suggest to my customer a remote car starter the system come with theft bypass so car start witout spending at least double or triple the price of a remote starter good luck pierre

Feb 25, 2011 | 2003 Chevrolet Express

Not finding what you are looking for?
2002 GMC Yukon XL Logo

1,689 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

69114 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22026 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...