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Old February 6th, 2011, 09:15 PM   #1
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Default 2001 GMC 2500 Hd

for some reason when hauling a trailor i lose power like it dies down then picks back up and hesitate like no fuel any idea thanks for any input
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Old February 6th, 2011, 09:16 PM   #2
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miles?
recent work?
5.3, 6.0, 8.1?

I would deff get a fuel pressure and volume check done, along with a scope reading of the amp's the pump is drawing.
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Old February 6th, 2011, 09:19 PM   #3
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Also do you pull your trailor in overdrive?
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Old February 6th, 2011, 09:31 PM   #4
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Quote:
Originally Posted by GREASYHANDS View Post
Also do you pull your trailor in overdrive?
All newer chevies pull in overdrive. My 01 Allison does.
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Old February 6th, 2011, 09:37 PM   #5
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All newer chevies pull in overdrive. My 01 Allison does.
or does he have a 4l80e?
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Old February 6th, 2011, 09:47 PM   #6
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I think he has a Duramax. Roger when is the last time you changed the fuel filter? If it has been a while change it and see if it helps. Scan it for codes, hopefully it doesn't have the dreaded low fuel rail pressure code (p0093 I think). You could have a bad injector or your CP3 is getting tired.
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Old February 6th, 2011, 09:51 PM   #7
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sorry was makeing dinner and doing this yea its a duramax 6.6
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Old February 6th, 2011, 09:52 PM   #8
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miles 140 have a edge juice , no muffler or cat

Last edited by roger; February 6th, 2011 at 09:55 PM.
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Old February 6th, 2011, 09:53 PM   #9
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that code came up a long time ago but it havent in a long time it not throw no codes now
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Old February 6th, 2011, 09:55 PM   #10
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tom whats a cp3
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Old February 6th, 2011, 09:59 PM   #11
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okay i hope it not a CP3 thats expensive lol or injector but it going to be one of them i know it. i change the fuel filter every 3000 im going to start there and change it again
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Old February 6th, 2011, 10:23 PM   #12
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can someone move this out of the faq section please
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