Duramax Diesels Forum Truck of the Week
  #1  
Old 09-15-2009, 10:38 AM
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A_T_Ver A_T_Ver is offline
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Default p0842

Threw a 0842 code last night. Didn't turn the CEL on, but i scanned it anyway. The 3>4 shift will not happen until i let off, every other gear is fine. It goes out of 3rd and revs until i let out then shifts to 4th. Looking through threads looks like the PSM? Fuel filter, spin on, internal filter and fluid has all been changed.
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  #2  
Old 09-15-2009, 11:02 AM
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Could be spin on or psm going bad.
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  #3  
Old 09-16-2009, 12:28 AM
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Oh shit Mike, threw a 0776 code tonight ! Dropped pan, no clutch material, fluid a little dark though. Checked PSM, o-rings are in place, replaced with new one though. No longer just a spin on fix.

It goes 1 2 3, i have to let off to hit 4th and then 5th is fine. Still luckily have 4 and 5 though! Is this a burned clutch pack?
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  #4  
Old 09-16-2009, 06:07 AM
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Quote:
Originally Posted by A_T_Ver View Post
Oh shit Mike, threw a 0776 code tonight ! Dropped pan, no clutch material, fluid a little dark though. Checked PSM, o-rings are in place, replaced with new one though. No longer just a spin on fix.

It goes 1 2 3, i have to let off to hit 4th and then 5th is fine. Still luckily have 4 and 5 though! Is this a burned clutch pack?
Oh dear... I hate to say it, but that sounds VERY familiar with the "same" trans... You're right, no longer just a spin-on fix. Time for a rebuild
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  #5  
Old 09-16-2009, 08:20 AM
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Quote:
Originally Posted by A_T_Ver View Post
Oh shit Mike, threw a 0776 code tonight ! Dropped pan, no clutch material, fluid a little dark though. Checked PSM, o-rings are in place, replaced with new one though. No longer just a spin on fix.

It goes 1 2 3, i have to let off to hit 4th and then 5th is fine. Still luckily have 4 and 5 though! Is this a burned clutch pack?
Time to contact your trans builder. This does not sound good. Looks like we have bad C2 clutches and problems in the C1/C2 drum.
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Old 09-16-2009, 08:39 AM
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Quote:
Originally Posted by Cougar281 View Post
Oh dear... I hate to say it, but that sounds VERY familiar with the "same" trans... You're right, no longer just a spin-on fix. Time for a rebuild
I hear ya, I read your thread

Quote:
Originally Posted by Mike L. View Post
Time to contact your trans builder. This does not sound good. Looks like we have bad C2 clutches and problems in the C1/C2 drum.
I'll be getting on the horn today hopefully
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  #7  
Old 09-17-2009, 11:02 AM
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Sounds like C2s to me as well.
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  #8  
Old 09-17-2009, 11:03 AM
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Originally Posted by othrgrl View Post
Sounds like C2s to me as well.
C2's and C3's where toast in mine. Teardown will tell...
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'04.5 2500HD Silverado LT CC/LB, LBZ D/A Dark Grey
Metallic, 05+ HD Hood & Grille, 168k and counting
Mike L Trans built by ME.
EFILive, PPE Race Valve, KD Twin Lift Pumps & Billet Fuel Pickup, MBRP 4" "Cat-Back" T409 straight piped.

300.59' 3rd place first pull

Best 1/4 times:
Truck: 14.067 @ 96.29, weighing in at over 7200#
446.4RWHP/820.2RWTq
Car (95 Cougar 4.6L V8): 14.680 @ 94.00

"The FIRST weapon is the mind, all others are incidental."
"I'd rather be judged by twelve than carried by six."

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