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02 gmc 2500 start shut off
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lumberjack_43
User
Jan 7, 2012, 1:36 PM
Post #1 of 20
(2734 views)
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02 gmc 2500 start shut off
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I have a 02 gmc 2500HD 6 liter gas engine 280,000 km on it if i leave it in the shop for the night it will start if i leave it out in the cold for the night it starts and shuts off after running for about 5 seconds I took the truck to gm had the module changed and reprogrammed changed the spark plugs before the problem started but thats not the problem as i put the old ones back in and it made no difference
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 1:40 PM
Post #2 of 20
(2727 views)
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Re: 02 gmc 2500 start shut off
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Put a fuel pressure gauge on it the night before and observe the pressure while trying to start it in the AM.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 1:44 PM
Post #3 of 20
(2720 views)
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Re: 02 gmc 2500 start shut off
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You wouldnt think that would be it if it will start in a warm shop though right? Maybe il grab it from work monday and try it out
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 2:08 PM
Post #4 of 20
(2710 views)
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Re: 02 gmc 2500 start shut off
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OK, if you don't think that would be it, don't do it. I can help someone else instead.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 2:33 PM
Post #5 of 20
(2704 views)
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Re: 02 gmc 2500 start shut off
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lol like i said i will try it
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 3:25 PM
Post #6 of 20
(2697 views)
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Re: 02 gmc 2500 start shut off
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This is a high pressure system that is extremely sensitive to fuel pressure, especially in colder weather when it needs a richer mixture. The pressure must remain above 55PSI at all times.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 3:32 PM
Post #7 of 20
(2693 views)
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Re: 02 gmc 2500 start shut off
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I hope that is all I got this truck for 600 bucks because the guy couldnt fix it lol
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 3:37 PM
Post #8 of 20
(2691 views)
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Re: 02 gmc 2500 start shut off
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Just make sure you are checking the pressure at the moment you are having the problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 4:23 PM
Post #9 of 20
(2682 views)
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Re: 02 gmc 2500 start shut off
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the fuel pressure was at 55 psi when it shut off
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 4:25 PM
Post #10 of 20
(2678 views)
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Re: 02 gmc 2500 start shut off
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You said you had a problem when it sat overnight. I don't know what time zone you're in but I seriously doubt it's morning there.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 4:28 PM
Post #11 of 20
(2673 views)
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Re: 02 gmc 2500 start shut off
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ok sorry it will start if left inside for the night but if you let it get cold it wont stay running
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lumberjack_43
User
Jan 7, 2012, 4:30 PM
Post #12 of 20
(2669 views)
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Re: 02 gmc 2500 start shut off
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If its in a heated shop it will start and stay running drive it what ever but if you shut it off and it cools down it will not stay running run for about 5 seconds and shut off and when i tested it when it shut off it was at 55
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 4:30 PM
Post #13 of 20
(2668 views)
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Re: 02 gmc 2500 start shut off
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Leave it out and see what the pressure does in the morning as it is being started.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 4:36 PM
Post #14 of 20
(2663 views)
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Re: 02 gmc 2500 start shut off
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Excuse my ignorance just a question but why would it make a difference if i tested it right now or in the morning as it will do the same thing in the morning as right now?
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lumberjack_43
User
Jan 7, 2012, 4:41 PM
Post #15 of 20
(2661 views)
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Re: 02 gmc 2500 start shut off
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Sorry there was a mistake there this truck as about 20 mins away from me and im doing this over the phone while talking to my father he said when it first started it was at 55 then it went up to 64 then it shut off
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2012, 4:52 PM
Post #16 of 20
(2654 views)
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Re: 02 gmc 2500 start shut off
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This is going to be impossible if you aren't where the truck is. There is no magic answer. I could guide you through some testing but if you aren't with the truck, that isn't going to work.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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lumberjack_43
User
Jan 7, 2012, 4:54 PM
Post #17 of 20
(2650 views)
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Re: 02 gmc 2500 start shut off
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Ok I will try and contact you monday I'm going to try the old module again as it was changed because of a draw somewhere by the previous onwer if that dont work im going to tow it home monday after work and go from there
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lumberjack_43
User
Jan 10, 2012, 12:31 AM
Post #18 of 20
(2613 views)
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Re: 02 gmc 2500 start shut off
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So it was the i forget the first letters under the dash module new one had faults i guess? put the old one back in and she runs great!
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braxxtonn
New User
Nov 10, 2012, 8:08 PM
Post #19 of 20
(2284 views)
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Re: 02 gmc 2500 start shut off
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hey guys i was surfing the web looking for solutions, AND MY TRUCK has the same problem as the one listed in this thread, it's a 94 gmc 2500 gas, newer fuel pump fuel filter, did wires, coil, cap, plug, rotor, and that lil chip under the cap 2 years ago when it was missing on spark, and with in th last 2 months It has started to act up and miss on the spark, It all started a lil while after i got a rebuilt tranny put in, 1st my speedo started to glitch out , it will work some times and other times it's bouncing around or buried at 140K,, then my truck started to sputter like it was missing on spark I discovered that if i flip the cruize control on and then off it will run fine, and then this morning the weather has got cold and it's like minus 20 I started my truck and it was idoling like Sh!t like i was missing on spark alot, so I flipped the cruize control on and off a few times and pumped the gas a bit and it started to idol good, drove it a few block to my friends house and left it running to let it warm up and then it died on its own, and now when I try to start it it will start run for 5 sec and then die, and if I start it and keep pumping the gas it will kinda stay running but is sputtering all to Sh!t,
I am very stumped here and don't really know where to start, I was thinking of going with a new rotor, cap and that lil modualor chip thing that is under the cap, and also the speed sensor, SOMEONE PLEASE HELP ME OUT HERE!!!!
thanks
Randy
Oh and hey what was the problem of your truck listed in this thread ????????????
THANX
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 10, 2012, 8:40 PM
Post #20 of 20
(2279 views)
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Re: 02 gmc 2500 start shut off
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This question is nearly a year old. If you need help with something, then please start a new question of your own.
Read this before posting.
http://autoforums.carjunky.com/...ORE_POSTING_P122997/
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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