Notices
GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4L80E lost 2nd gear

Thread Tools
 
Search this Thread
 
Old 04-29-2008, 06:13 PM
  #41  
High on diesel fumes
Thread Starter
iTrader: (70)
 
thunder550's Avatar
 
Join Date: Mar 2005
Location: Phoenix, AZ
Posts: 12,658
Likes: 0
Received 3 Likes on 3 Posts
Default

Yep, broke/rolled the intermediate sprag and took out the 2nd gear clutches (I think that's what he said).

Decided against going with the super expensive upgrade sprag and just toning down the 1-2 shift. Should be back together and on it's way home by the end of the week.
Old 04-29-2008, 06:19 PM
  #42  
TECH Fanatic
iTrader: (9)
 
53RUSSELL's Avatar
 
Join Date: May 2007
Location: AJ, AZ
Posts: 1,070
Likes: 0
Received 0 Likes on 0 Posts
Default

What did the 4L80E set you back new? Why did you go with a vacuum module over setting up the pressure in EFIlive your self?
Old 04-29-2008, 06:23 PM
  #43  
High on diesel fumes
Thread Starter
iTrader: (70)
 
thunder550's Avatar
 
Join Date: Mar 2005
Location: Phoenix, AZ
Posts: 12,658
Likes: 0
Received 3 Likes on 3 Posts
Default

I don't want to discuss price in the thread since my guy isn't a sponsor.

Jim does all of his trannies with vacuum modulated to remove the opportunity for excessive shift pressures to be set in the PCM, breaking hard parts. Seems ironic now I guess

I understand the principle behind it though. I asked him for EPC and he wouldn't do it.
Old 05-06-2008, 04:43 PM
  #44  
High on diesel fumes
Thread Starter
iTrader: (70)
 
thunder550's Avatar
 
Join Date: Mar 2005
Location: Phoenix, AZ
Posts: 12,658
Likes: 0
Received 3 Likes on 3 Posts
Default

Tranny came home today I have class tonight so I doubt that I will be able to get a whole lot done, but I should have her back on the road by tomorrow night.
Old 05-06-2008, 05:17 PM
  #45  
How do I change this text
iTrader: (26)
 
Wilde Racing's Avatar
 
Join Date: Jan 2005
Location: Behind the TIG welder
Posts: 7,294
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by thunder550
Decided against going with the super expensive upgrade sprag and just toning down the 1-2 shift.

P.M sent
Old 05-07-2008, 11:18 AM
  #46  
High on diesel fumes
Thread Starter
iTrader: (70)
 
thunder550's Avatar
 
Join Date: Mar 2005
Location: Phoenix, AZ
Posts: 12,658
Likes: 0
Received 3 Likes on 3 Posts
Default

Well like a dumbass I started and finished the install last night. Wouldn't have been bad, except that I had class till 10pm. I went to bed at 3:30 this morning. I woke up at 8 and I am exhausted. But I got to drive the truck to work today
Old 05-07-2008, 11:38 AM
  #47  
TECH Fanatic
iTrader: (9)
 
53RUSSELL's Avatar
 
Join Date: May 2007
Location: AJ, AZ
Posts: 1,070
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by thunder550
Well like a dumbass I started and finished the install last night. Wouldn't have been bad, except that I had class till 10pm. I went to bed at 3:30 this morning. I woke up at 8 and I am exhausted. But I got to drive the truck to work today
I'm glad to here that you got it running again.
Old 05-07-2008, 12:04 PM
  #48  
GFYS and STFU
iTrader: (8)
 
Spoolin's Avatar
 
Join Date: Jan 2007
Location: Here and sometimes there too.
Posts: 13,870
Received 4 Likes on 4 Posts
Default

Good job Chris! Sounds like you got everything sorted out in a efficient and cost sensitive manner. I had that same problem with my original tranny and I was told it was a burned 2-4 solenoid...maybe it was the sprag...
Old 05-07-2008, 12:08 PM
  #49  
TECH Junkie
iTrader: (10)
 
ZZebes's Avatar
 
Join Date: Feb 2007
Posts: 3,111
Likes: 0
Received 1 Like on 1 Post
Default

good to hear chris, mine will be here friday
Old 05-07-2008, 12:42 PM
  #50  
TECH Fanatic
iTrader: (1)
 
James B.'s Avatar
 
Join Date: Mar 2003
Location: 33.91° -117.48°
Posts: 1,984
Likes: 0
Received 2 Likes on 2 Posts
Default

I know the feeling of driving the truck after it's been broken for months. Makes the all-nighters all worth it.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jakejack
GM Drivetrain & Suspension
2
01-08-2024 10:44 PM
Oobray
8-Lug Truck Performance
70
06-13-2022 03:38 AM
1slwgto
GM Drivetrain & Suspension
4
08-16-2015 06:40 PM
lxcoupe
GM Drivetrain & Suspension
17
07-14-2015 10:14 PM
ferrellrooster
GM Drivetrain & Suspension
5
07-13-2015 09:53 AM



Quick Reply: 4L80E lost 2nd gear



All times are GMT -5. The time now is 05:34 AM.