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Topic: Transmission won't go into gear (Read 484 times) previous topic - next topic

Transmission won't go into gear

Sorry but trying to get on road and trying to do this on phone.  Getting a code O o-L7.  Anyone know a quick fix?

Jerre
Jerre and Kathy Griffin
2003 U320 4220 Special
Build # 6207
2022 RAM Laramie 4X4 EcoDiesel
2002 Country Coach Magna 37 Tag- Forever Coach-Died in fire 7/23
1997 Country Coach 32 Intrigue-No slides-Wonderful

Re: Tansmission won't go into gear

Reply #1 –
Slides in ? Cycle slides to get switches telling transmission slides are fully in.

Re: Tansmission won't go into gear

Reply #2 –
recycled ok x 1  will try a couple more times.
Jerre and Kathy Griffin
2003 U320 4220 Special
Build # 6207
2022 RAM Laramie 4X4 EcoDiesel
2002 Country Coach Magna 37 Tag- Forever Coach-Died in fire 7/23
1997 Country Coach 32 Intrigue-No slides-Wonderful

Re: Transmission won't go into gear

Reply #3 –
Quote from: DaBus –
Sorry but trying to get on road and trying to do this on phone.  Getting a code O o-L7.

That's not a code listed in the Allison manual  https://www.foreforums.com/MGalleryItem.php?id=942

Ignoring that code, one possibility is that the idle is too high.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transmission won't go into gear

Reply #4 –
Is it cold where you are?  I see this one:

0 L  7 0 - Sump fluid temperature too low.

Check this diag manual.
Keith
2003 U320 38' #6197

Re: Transmission won't go into gear

Reply #5 –
Thanks all.  I had tried cycling the slides but only once.  Retried and it let me drop into gear.  Thanks.  Isn't there a fuse that can be pulled to fool the tranny into believing the slides are in?
Jerre and Kathy Griffin
2003 U320 4220 Special
Build # 6207
2022 RAM Laramie 4X4 EcoDiesel
2002 Country Coach Magna 37 Tag- Forever Coach-Died in fire 7/23
1997 Country Coach 32 Intrigue-No slides-Wonderful

Re: Transmission won't go into gear

Reply #6 –
Quote from: DaBus –
Thanks all.  I had tried cycling the slides but only once.  Retried and it let me drop into gear.  Thanks.  Isn't there a fuse that can be pulled to fool the tranny into believing the slides are in?

There is an override switch, but it should only be used in emergencies.  There is a reason the slides are interlocked with the transmission.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transmission won't go into gear

Reply #7 –
Quote from: WS6_Keith –
Is it cold where you are?  I see this one:

0 L  7 0 - Sump fluid temperature too low.

Correct. OL 7 0 is NOT a diagnostic code.  It means the transmission is not up to full operating temperature. It means that the transmission fluid level can not be checked.

To check for diagnostic codes, you need to push the up and down arrows again at the same time.  That will bring up d-1 followed by any diagnostic code.  If there is not one, it will show d-1 followed by - -.  If there is a d-1 code, you need to scroll to the next one (d-2). Continue until you get the d-"whatever" and - -.

Let us know what diagnostic codes you get.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Transmission won't go into gear

Reply #8 –
In the future when moving the slides in or out be sure to hold the button down until the red light goes out, it Will sound like it's binding up, but continue holding it down until the light goes out.




Keith
The selected media item is not currently available.Keith & Jo
2003 U320T 4025 PBBS Designer series
Build 6203    Cummins 500hp
2000 U320 4010 WTFE / Build 5762 —Sold—
Motorcade #18070   
Pasadena, Texas
2015 Jeep Wrangler Sahara-Sunset Orange pearl coat
Don't argue with a fool, people watching might not be able to tell the difference.