Allison slipping? - Page 2

stpierres · 06-18-2010, 09:15 PM

When did you last replace your fuel filter?

orangeslices430 · 06-18-2010, 09:29 PM

About 1000 miles ago. Change fuel filter every 10k.

**cainer70** · 06-18-2010, 09:56 PM

Have you done a transmission relearn after the H&S? This almost sounds like the trans hasn't learned yet... How long ago snce you installed the tuner.

I very highly doubt your trans is on it's way out.

orangeslices430 · 06-19-2010, 07:58 AM

Ya, I did a relearn about a day after I put it on the truck which was about 3-4 weeks ago.

When I would start to accelerate from a stop it shifts great, its just when I would get on it pretty good at about 55-60mph, it felt like i was taking my foot off the pedal then getting back on it really quick. the truck would lay down for a split second then start to accelerate again and would keep doing this numerous times in a row.

From what I have read if you limp your trans you will get a code and only run in 3rd gear, or did I read that wrong?

Im having a hard time describing it so sorry about the weird explanations.

**cainer70** · 06-19-2010, 09:21 AM

if you are describing a short pause type event happening you may be experiencing defuel between shifts.

Mwheeler · 07-09-2010, 06:12 PM

I just installed a ppe standard level 3 on my 06 lbz... i never noticed any shifting problems when it was stock. Now i notice the same lagging shifting problems. Could this be the extra power has just made it noticeable, and its just a fuel filter/pressure drop problem?

kawikid1425 · 07-09-2010, 06:29 PM

it is called defueling, it does it between shifts to save the transmission, if you take defuel off a stock trans it wont last very long!!!

orangeslices430 · 07-09-2010, 07:32 PM

The problem really only occurs when I get on it somewhat but normal driving the problem doesn't occur. Im going with a built trans and lift pump here in the next couple months so hopefully this will fix the problem running on any tune.

devo · 07-10-2010, 10:18 AM

your not hitting limp mode,im pretty sure a code definatly is thrown when it hits limp mode.and you cant go very fast at all when ur in limp mode,i think you can only go like 35?..you have to shut the truck off i belive and reset the code and it will be fine after that.but that means once you limp it,you put a glaze on the clutches.therefore it will only be easier and easier to limp when u hammer on it.It doesnt sound like you have limped it,there are ppl on here running pretty big tunes and hammer down alot and havnt limped there trans yet.probably de-fueling like said.

06-18-2010, 09:15 PM	eBay Motors #11 (permalink)
stpierres Junior Member Join Date: Jan 2010 Location: Harrisonburg, Va Posts: 181	When did you last replace your fuel filter? __________________ 2005 LLY CCSB LT AFE MP Cognito Leveling kit Bilstiens 5100 3inch turbo back (4inch soon) 134k running strong

06-18-2010, 09:29 PM	eBay Motors #12 (permalink)
orangeslices430 Junior Member Join Date: Feb 2010 Location: Missouri Posts: 71	About 1000 miles ago. Change fuel filter every 10k. __________________ Mike, 21 ... 09 2500 CCSB / Black granite metallic\|-\|SDP Twins (Metallic Blue)\|-\|30% Injectors\|-\|ARP Head Studs\|-\|SoCal Pushrods\|-\|EFI Live Tuned By MCS Diesel\|-\|PPE Stage V trans\|-\|FASS 150gph\|-\| 5" Turbo back Magnaflow\|-\|Triple pillar gauge/Cobalt (Boost-Pyro-Rail) Cognito UCA + keys\|-\|20" XD Spy\|-\|Nitto Trail Grappler 305/55/20\|-\|HID 8k Lows, 8k Highs, 3k Fogs

06-18-2010, 09:56 PM	eBay Motors #13 (permalink)
cainer70 Word Up Join Date: Jun 2009 Location: Fort McMurray, Alberta/Atikokan, Ontario Posts: 3,519	Have you done a transmission relearn after the H&S? This almost sounds like the trans hasn't learned yet... How long ago snce you installed the tuner. I very highly doubt your trans is on it's way out. __________________ LMM Twinz N sum shyt ATP Tuned 02 LB7 to be EFI'd this week. Cainer70 Passed Away - See Thread Here Last edited by cainer70; 06-18-2010 at 09:58 PM.

06-19-2010, 07:58 AM	eBay Motors #14 (permalink)
orangeslices430 Junior Member Join Date: Feb 2010 Location: Missouri Posts: 71	Ya, I did a relearn about a day after I put it on the truck which was about 3-4 weeks ago. When I would start to accelerate from a stop it shifts great, its just when I would get on it pretty good at about 55-60mph, it felt like i was taking my foot off the pedal then getting back on it really quick. the truck would lay down for a split second then start to accelerate again and would keep doing this numerous times in a row. From what I have read if you limp your trans you will get a code and only run in 3rd gear, or did I read that wrong? Im having a hard time describing it so sorry about the weird explanations. __________________ Mike, 21 ... 09 2500 CCSB / Black granite metallic\|-\|SDP Twins (Metallic Blue)\|-\|30% Injectors\|-\|ARP Head Studs\|-\|SoCal Pushrods\|-\|EFI Live Tuned By MCS Diesel\|-\|PPE Stage V trans\|-\|FASS 150gph\|-\| 5" Turbo back Magnaflow\|-\|Triple pillar gauge/Cobalt (Boost-Pyro-Rail) Cognito UCA + keys\|-\|20" XD Spy\|-\|Nitto Trail Grappler 305/55/20\|-\|HID 8k Lows, 8k Highs, 3k Fogs Last edited by orangeslices430; 06-19-2010 at 08:24 AM.

06-19-2010, 09:21 AM	eBay Motors #15 (permalink)
cainer70 Word Up Join Date: Jun 2009 Location: Fort McMurray, Alberta/Atikokan, Ontario Posts: 3,519	if you are describing a short pause type event happening you may be experiencing defuel between shifts. __________________ LMM Twinz N sum shyt ATP Tuned 02 LB7 to be EFI'd this week. Cainer70 Passed Away - See Thread Here

07-09-2010, 06:12 PM	eBay Motors #16 (permalink)
Mwheeler Junior Member Join Date: Jun 2010 Location: Georgia Posts: 93	I just installed a ppe standard level 3 on my 06 lbz... i never noticed any shifting problems when it was stock. Now i notice the same lagging shifting problems. Could this be the extra power has just made it noticeable, and its just a fuel filter/pressure drop problem? __________________ -2006 Chevrolet 2500HD 4x4 LT3, LBZ, CC/SB -MBRP 4" Turbo-back -EFI Live www.getsomeperformance.com

07-09-2010, 06:29 PM	eBay Motors #17 (permalink)
kawikid1425 DuramaxForum Veteran Join Date: Dec 2008 Location: NORTH JACKSON, OHIO Posts: 1,669	it is called defueling, it does it between shifts to save the transmission, if you take defuel off a stock trans it wont last very long!!! __________________ www.trollperformance.com For all your diesel specialty parts like muffler delete bearings, triple stacked tuners and flux capacitors

07-09-2010, 07:32 PM	eBay Motors #18 (permalink)
orangeslices430 Junior Member Join Date: Feb 2010 Location: Missouri Posts: 71	The problem really only occurs when I get on it somewhat but normal driving the problem doesn't occur. Im going with a built trans and lift pump here in the next couple months so hopefully this will fix the problem running on any tune. __________________ Mike, 21 ... 09 2500 CCSB / Black granite metallic\|-\|SDP Twins (Metallic Blue)\|-\|30% Injectors\|-\|ARP Head Studs\|-\|SoCal Pushrods\|-\|EFI Live Tuned By MCS Diesel\|-\|PPE Stage V trans\|-\|FASS 150gph\|-\| 5" Turbo back Magnaflow\|-\|Triple pillar gauge/Cobalt (Boost-Pyro-Rail) Cognito UCA + keys\|-\|20" XD Spy\|-\|Nitto Trail Grappler 305/55/20\|-\|HID 8k Lows, 8k Highs, 3k Fogs

07-10-2010, 10:18 AM	eBay Motors #19 (permalink)
devo DuramaxForum Veteran Join Date: Sep 2008 Location: Western MA Posts: 1,113	your not hitting limp mode,im pretty sure a code definatly is thrown when it hits limp mode.and you cant go very fast at all when ur in limp mode,i think you can only go like 35?..you have to shut the truck off i belive and reset the code and it will be fine after that.but that means once you limp it,you put a glaze on the clutches.therefore it will only be easier and easier to limp when u hammer on it.It doesnt sound like you have limped it,there are ppl on here running pretty big tunes and hammer down alot and havnt limped there trans yet.probably de-fueling like said. __________________ My truck 04.5 LLY CC/SB Slt Djm/mcgaughy drop 20x10 gear 726's Big dipper IV Trans and precision converter Efilive tuned by Tony Martino(Moonshine) 12.95@103.5 w/1.79 60'

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