Duramax/Allison Question - Great Lakes 4x4. The largest offroad forum in the Midwest

mschaffer66 · April 16th, 2006, 06:08 PM

As some of you might know I haven't been driving my truck the past 4 months or so as the woman has been driving it to save miles on her lease.

Well today when coming home from up north I went to pass someone and when i put my foot into it it would rev up a bit, then eventhough i was holding it down the RPM's didn't increase and neither did my speed...just like it was being governed out. I did it a few more times later and it did almost the same thing. Its like it didn't want to upshift.

I also tried it a few times from a dead stop, it would do the 1-2 shift and maybe the 2-3 and it would just sit there and hold the gear without allowing my speed to really increase(it was just barely inching higher), then after 5-10 seconds it would shift and it would pull hard just like it usually does.

Has anyone else had this problem before? Does anyone know about it?

Yetti · April 16th, 2006, 06:13 PM

sounds like a flash issue. have you had it to the dealer for this problem yet? if not theres a new flash for your trans controler waiting

mschaffer66 · April 16th, 2006, 06:20 PM

Nope I haven't. About a year ago I had it in and they replaced the trans module.

So are you saying if i call up service tommorow they should understand whats going on and make it a quick in and out?

Do they charge you to flash you...hehe...or is it like a warranty/recall thing?

Yetti · April 16th, 2006, 07:36 PM

there was tons of TSBs on the allison trans for malfunctions in the controller. if its under a tsb it should be free to you.

Yetti · April 16th, 2006, 07:38 PM

by the way I had a trans at 4400 miles and three controllers in by the time I had 22,000 miles on my`01 allison

mschaffer66 · April 16th, 2006, 07:55 PM

I guess I should feel lucky that mine has made it to nearly 90k with minimal problems.

Oh well at 107k my warranty is up and I'm going to start modding it a bit. If the Allison goes after that I'll get an ATS or something for it.

AWK · April 19th, 2006, 08:50 AM

I can search this issue for you if you like. PM me, I will need a little more info.

AWK

KILLER"B"468 · April 19th, 2006, 06:10 PM

Yep have it flshed and then have her drive it like you. It is OBDII and it does learn driving styles. But I would have it checked out none the less.

95geo · April 20th, 2006, 07:18 AM

Quote:

Originally Posted by mschaffer66

Oh well at 107k my warranty is up and I'm going to start modding it a bit. If the Allison goes after that I'll get an ATS or something for it.

www.dieselplace.com for all of your answers

mine did some things like what you described a while ago, i think i had an egr code and a tranny code. i have an LLY engine though

i'd recommend a suncoast level 3 or 4, IMO ATS is overpriced

kerryann · April 20th, 2006, 04:09 PM

Quote:

Originally Posted by KILLER"B&quot

Yep have it flshed and then have her drive it like you. It is OBDII and it does learn driving styles. But I would have it checked out none the less.

He doesnt know how I drive it when he's not around. :tonka:

JOE · May 1st, 2006, 08:38 PM

Hey man, i'm glad to see you bought a Dmax! Check out www.dieselplace.com for all the answers. I am "APEXrtx" on there.

ATS has some excellent products but so does suncoast. When the time come for my upgrade I'll probably go with the suncoast.

84Scrambler · May 4th, 2006, 10:00 AM

Y'all shoulda bought a Dodge. ;)

kerryann · May 4th, 2006, 10:04 AM

The truck is running fine. It seems that it might have changed it's shift points because our driving styles are drastically different.. or something like that. :tonka:

JOE · May 4th, 2006, 08:12 PM

Quote:

Originally Posted by 84Scrambler

Y'all shoulda bought a Dodge. ;)

lol.....rrrriiiigggghhhtttt

mschaffer66 · May 8th, 2006, 08:15 AM

Quote:

Originally Posted by kerryann

The truck is running fine. It seems that it might have changed it's shift points because our driving styles are drastically different.. or something like that. :tonka:

Actually I found out that its not running right today when I almost met Jesus. That darned shifting this is kind of important when you need to get moving.

95geo · May 8th, 2006, 08:36 AM

if you get a programmer like a predator or the like (not a box) you can read/clear codes along with having the power to got moving quickly... just some food for thought... :tonka:

April 16th, 2006, 06:08 PM	#1
mschaffer66 Still telln it like it is Join Date: 11-05-05 Location: West Bloomfield, MI Posts: 8,655 iTrader: (16)	Duramax/Allison Question As some of you might know I haven't been driving my truck the past 4 months or so as the woman has been driving it to save miles on her lease. Well today when coming home from up north I went to pass someone and when i put my foot into it it would rev up a bit, then eventhough i was holding it down the RPM's didn't increase and neither did my speed...just like it was being governed out. I did it a few more times later and it did almost the same thing. Its like it didn't want to upshift. I also tried it a few times from a dead stop, it would do the 1-2 shift and maybe the 2-3 and it would just sit there and hold the gear without allowing my speed to really increase(it was just barely inching higher), then after 5-10 seconds it would shift and it would pull hard just like it usually does. Has anyone else had this problem before? Does anyone know about it?

April 16th, 2006, 06:20 PM	#3
mschaffer66 Still telln it like it is Join Date: 11-05-05 Location: West Bloomfield, MI Posts: 8,655 iTrader: (16)	Nope I haven't. About a year ago I had it in and they replaced the trans module. So are you saying if i call up service tommorow they should understand whats going on and make it a quick in and out? Do they charge you to flash you...hehe...or is it like a warranty/recall thing?

April 16th, 2006, 07:55 PM	#6
mschaffer66 Still telln it like it is Join Date: 11-05-05 Location: West Bloomfield, MI Posts: 8,655 iTrader: (16)	I guess I should feel lucky that mine has made it to nearly 90k with minimal problems. Oh well at 107k my warranty is up and I'm going to start modding it a bit. If the Allison goes after that I'll get an ATS or something for it.

April 19th, 2006, 08:50 AM	#7
AWK Senior Member Join Date: 11-15-05 Location: Chesterfield Posts: 611 iTrader: (3)	I can search this issue for you if you like. PM me, I will need a little more info. AWK

May 1st, 2006, 08:38 PM	#11
JOE Member Join Date: 11-06-05 Location: Howell, MI Posts: 51 iTrader: (0)	Hey man, i'm glad to see you bought a Dmax! Check out www.dieselplace.com for all the answers. I am "APEXrtx" on there. ATS has some excellent products but so does suncoast. When the time come for my upgrade I'll probably go with the suncoast.

May 4th, 2006, 10:00 AM	#12
84Scrambler Senior Member Join Date: 11-07-05 Location: Lansing Posts: 5,888 iTrader: (8)	Y'all shoulda bought a Dodge. ;)

May 4th, 2006, 10:04 AM	#13
kerryann German cars are hot Join Date: 11-05-05 Location: West Bloomfield Posts: 10,783 iTrader: (3)	The truck is running fine. It seems that it might have changed it's shift points because our driving styles are drastically different.. or something like that. :tonka:

May 8th, 2006, 08:36 AM	#16
95geo newbie Join Date: 11-05-05 Location: dryden Posts: 5,769 iTrader: (6)	if you get a programmer like a predator or the like (not a box) you can read/clear codes along with having the power to got moving quickly... just some food for thought... :tonka: