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| 06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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11-11-2012, 12:11 AM
| eBay Motors #1 (permalink) |
| DuramaxForum n00b  Join Date: Nov 2012
Posts: 14
| Help Tranny, EMC dont know? Alright here is where I am at. 04.5 2500HD some mods but the main issue is that out of the blue my truck started shifting weird. I accelerate slowly i am alright to about 70 then i have to let off a bit then it will shift up. If i put the hammer down it will hold in gear and have almost no power (couldn't even pass a civic in town!!) Also it bellows smoke like a cummins. So i took my programmer out to see if that might fix the problem (ppe hot 2+2) and no help only less smoke. Took it to the best shop here in SW Missouri Northeast Diesel and their scanner said it was the ECM so either buy a new one (ya right) or get mine rebuilt. Sent it off to Cardone/A1 in Pa. They call me back and said after going through it there was nothing wrong programming/physical problem wise. Called my diesel tech and he said he had no idea and he would have to trace all the wires to see if something has gotten loose. Does this sound familiar to anyone? Really could use some help. The only two things i have going for me is that my shop doesn't charge me for researching the problem only if they find the problem and fix it, and I have a car to get around in the mean time. Thanks for any help. |
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11-11-2012, 12:56 AM
| eBay Motors #2 (permalink) |
| DuramaxForum Veteran  Join Date: Mar 2011 Location: Missouri
Posts: 1,375
| What kind of air filter do you have? When was last time fuel filter was changed?
__________________ 05 CCSB EFI Live by Kory Willis 76 Dodge Charger SE http://www.duramaxforum.com/forum/91...mber-list.html www.TrollPerformance.com Last edited by rd05lly; 11-11-2012 at 01:00 AM. |
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11-11-2012, 04:43 AM
| eBay Motors #3 (permalink) |
| DuramaxForum n00b Join Date: Nov 2012
Posts: 14
| Airaid intake with K&N filter and the fuel filter was replaced 10K miles ago. |
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11-11-2012, 04:53 AM
| eBay Motors #4 (permalink) |
| DuramaxForum Veteran Join Date: Mar 2011 Location: Missouri
Posts: 1,375
| Clean maf sensor with maf cleaner from parts store and change fuel filter. Sent from my iPhone using Autoguide.com Free App
__________________ 05 CCSB EFI Live by Kory Willis 76 Dodge Charger SE http://www.duramaxforum.com/forum/91...mber-list.html www.TrollPerformance.com |
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11-11-2012, 05:10 AM
| eBay Motors #5 (permalink) |
| EFI'd and lovin it   Join Date: Jan 2008 Location: Roswell, NM
Posts: 9,135
| They will shift funny at the higher speeds like that if they do not get enough fuel rail pressure. Trans won't upshift at WOT
__________________  06 2500 CREW CAB 4X4 LBZ LOONNGGGGG BED EXHAUST,EFI LIVE,DSP5,TPTUNED BY KORY WILLIS,S&B COLD AIR INTAKE AUTOMETER GAUGES, TRANSGO JR, BLOCKED, TIE ROD SLEEVES... WORK RIG O7.5 3500 CREW,DUALLY, LMM, ROYAL UTILITY BED...STOCK......ISH This is not only your forum you have to share it with over 80,000 others  |
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11-11-2012, 05:47 AM
| eBay Motors #6 (permalink) |
| DuramaxForum n00b Join Date: Nov 2012
Posts: 14
| Ill check the maf, and my pressure is about 26,000psi so I think I am good there. |
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11-11-2012, 08:29 AM
| eBay Motors #7 (permalink) |
| DuramaxForum Veteran Join Date: Mar 2011 Location: Missouri
Posts: 1,375
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__________________ 05 CCSB EFI Live by Kory Willis 76 Dodge Charger SE http://www.duramaxforum.com/forum/91...mber-list.html www.TrollPerformance.com |
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11-11-2012, 09:58 AM
| eBay Motors #8 (permalink) |
| DuramaxForum n00b Join Date: Nov 2012
Posts: 14
| Nope, ppe |
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11-11-2012, 12:54 PM
| eBay Motors #9 (permalink) |
| DuramaxForum Veteran Join Date: Mar 2011 Location: Missouri
Posts: 1,375
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__________________ 05 CCSB EFI Live by Kory Willis 76 Dodge Charger SE http://www.duramaxforum.com/forum/91...mber-list.html www.TrollPerformance.com |
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12-01-2012, 09:23 PM
| eBay Motors #10 (permalink) |
| DuramaxForum n00b Join Date: Nov 2012
Posts: 14
| Found the problem. The programmer was putting to much pressure on the TC from shift from 4 too 5 and it would throw a safety "switch" which dropped it into 4th and kept it there. Talk about piss'en people off at a stoplight stuck in 4th gear, cummins aint got nuthen on that. So once I dialed back the pressure and ease off the throttle during the shift everything is fine, but I am afraid the tranny is living on borrowed time.
__________________ LLY, MBRP 5'' TB, AFE intake & bladerunner, ppe fule rail & hot 2+2 programer, and a few other goodies. |
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