2001 Chevy 2500 HD Allison - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Transmissions > Allison OEM
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

Allison OEM Discuss repairing & maintaining an OEM Allison automatic transmission.

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 01-28-2016, 02:46 PM   #1 (permalink)
burbman2015
Gear Grinder
 
Join Date: Jan 2016
Posts: 2
iTrader Score: 0 reviews

2001 Chevy 2500 HD Allison

What I've got is a 2001 Chevy 2500 HD 4x4 with the 8.1 and Allison Transmission. For some reason for the last 2 months or so, I would have to put it into reverse and back up before it would go into Drive. Well 2 weeks ago, It wouldn't backup anymore. And I still have no forward movement. So I went and bought a used transmission, installed it, and still have the same problem. My Dash indicator where is has the odometer, PRND123 has been out for a long time. As of now it is still out. I tried another TCM, and NSBU switch, and didn't change anything. One thing I did try is to disconnect the round plug on the back of the transmission, and now my Dash indicator is on, and I can put it in all gears and it will move. As soon as I plug it back in, I have nothing again. With my scanner I can pull one code consistently everytime I reset the codes. P1710 P1713 What is happening is when I first start the truck, All the gauges work, when I put it in any gear all the gauges quit working except for Battery and Oil Pressure. Any gear you put the transmission in feels like neutral, and that's it. What am I doing wrong?

Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-29-2016, 08:46 AM   #2 (permalink)
burbman2015
Gear Grinder
 
Join Date: Jan 2016
Posts: 2
iTrader Score: 0 reviews

I finally figured it out. After countless hours of wire tracing, looking for broken or chaffed wires, I replaced the ignition switch and much to my surprise it fixed everything. I hope this will help someone out in the future. I enjoyed reading through your forum

Offline   Reply With Quote Quick reply to this message
Old 02-03-2016, 08:38 AM   #3 (permalink)
retssgtusmcLB7
Sparkplug Hunter
 
Join Date: Feb 2016
Location: Mobile, AL
Posts: 1
iTrader Score: 0 reviews

so i have the 01lb7, so far i have towed a 3 to 4k pound car a dodge chrger, and on the way home the next day no tow, i was around 85 plus and i was seeing how fast and the power get up on the interstate. well it just shut down and had a power loss, and didnt let me have any throttle again until i got to about 40 mph and the throttle kicked back in. no warning lights or anything and it happened one more time when i got kinda high in speed. i did tow without using my tow/haul, but i figured it would be perfectly fine with that load. the other day i was in park and truck was still running bc i kep it runnin if its 10 to 15 minutes or less. well i pulled out and it was stuck in first gear, actied like it just didnt wanna shift gears. i pulled over turned the truck off qnd restrrted and drove just fine i had to drove 120 miles after thta no problems? 01lb7 with all stock and jus replacement water seperator as far as anything else no problems and tender love and care. i do wanna add a fuel lift pump, and maybe a few other things to help with the trucks tranny. also i was really intrigued by "Hot Shots' ADDITIVES. they have a fuel, oil, and tranny additives all alleged to do wonders? Any one with expperince with these and or any advice as to quality parts that are affordable and help enhance the stock feul and transmission as well as intake outake. i only wanna do some simple upgraged in order for the engine and tranny to last to a million. i believe im gonna make it at 250k so far no problems except what i mentioned earlier, which could be related to fuel flow or injectors that need to be treated
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2008-2013 Chevy Silverado 2500 HD Power Heated Smoked Style Turn Signal Telescoping T 1AAuto.com 1A Auto Parts 7 04-24-2017 03:51 PM
2008-2013 Chevy Silverado 2500 HD Mirror Power Heated Manual - Folding Turn Signal Te 1AAuto.com 1A Auto Parts 5 02-08-2017 03:17 PM
2002 chevy 2500 hd duramax Brittjc Duramax First Generation: 2001-2004 (LB7) 14 12-01-2015 01:41 AM
2001 Chevy 6.5 temp coolant gauge not working....different then most with pictures Deshet 6.5L Diesel Engine 5 11-17-2015 07:47 PM


All times are GMT -4. The time now is 10:51 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide