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08-02-2009, 11:06 AM
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#1 | |
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AF Newbie
Join Date: Aug 2009
Location: Oney, Maryland
Posts: 1
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2002 gmc sierra 3500, 8.1-flashing mil, dies/hard to start
I have a 2002 gmc sierra, 3500 with 8.1, the truck will start immediatly(sometimes takes minute) and drive but after some time could be minutes to hours it will die. mostly if i'm at stop light or at low speeds less than 40. IF it dies I can pull over wait around 20 seconds and it usually starts a few times it has taken longer up to 30 minutes. The light used to not come on at all, then it started coming on/shutting off. Now it would flash then go out. from my research I heard flashing light is not a good sign. Thought about buying a diagnostic scanner since paying someone to do it will cost just as much, but like everyone else in this economy situation dont' have alot of money. So hoping to do some just brain storming before going the expense to get some ideas from those who maybe have an insight on my problem.
I reside in Olney, md |
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08-02-2009, 02:36 PM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,950
Thanks: 25
Thanked 371 Times in 365 Posts
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Re: 2002 gmc sierra 3500, 8.1-flashing mil, dies/hard to start
You must get the codes read for any meaningful help here.
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08-14-2009, 11:15 AM
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#3 | |
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AF Enthusiast
Join Date: Nov 2005
Location: crowley, Texas
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Re: 2002 gmc sierra 3500, 8.1-flashing mil, dies/hard to start
I have an '02 8.1 as well and have had the same issue. I've had a bad crank sensor do this in another vehicle and have heard they were an issue in the '01 model GMCs. Mine stored code p0100. Can anyone point out where the crank sensor is on this engine and the cam sensor as well, provided it has one?
__________________
master airframe mech/shadetree auto mech/30+ years experience current vehicles: '02 Impala LS 3.8L '02 Trans Am WS6 LS1 6spd '99 Grand Am SE 3.4L '71 Cutlass SX 455/TH400 '04 YZ450F '07 Kona Garbonzo (dowwnhill mountain bike) |
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08-14-2009, 11:56 AM
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#4 | |
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A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,950
Thanks: 25
Thanked 371 Times in 365 Posts
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Re: 2002 gmc sierra 3500, 8.1-flashing mil, dies/hard to start
Check the info at autozone.com, repair guides, register and your in.
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08-14-2009, 08:11 PM
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#5 | |
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AF Enthusiast
Join Date: Nov 2005
Location: crowley, Texas
Posts: 505
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Re: 2002 gmc sierra 3500, 8.1-flashing mil, dies/hard to start
autozone has nothing for me, anyother suggestions?
__________________
master airframe mech/shadetree auto mech/30+ years experience current vehicles: '02 Impala LS 3.8L '02 Trans Am WS6 LS1 6spd '99 Grand Am SE 3.4L '71 Cutlass SX 455/TH400 '04 YZ450F '07 Kona Garbonzo (dowwnhill mountain bike) |
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