Wanderlodge Owners Group  

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Transmission

Transmission Discussion of preventative/corrective maintenance and other technical issues regarding your coach's transmission.

Site Search:
Thread Tools
Old 01-17-2017
Conmega's Avatar
Conmega Conmega is offline
Join Date: Jan 2017
Location: Elkton
Posts: 35
Default Auto Allison in '79 FC35 shifting issue

So the info I have is by word of mouth since I haven't driven the RV personally yet, but my father (who already has his Class B and could pick it up for me) said there was an issue with the transmission shifting.

As he described it when it goes to upshift it will do something along the lines of 'upshifting, then downshifting and upshifting one last time before settling into gear' I can't remember his exact wording. But its acting funny non-the-less.
After its in gear its apparently fine.

I believe the first thing to check would be the fluids, which I have not had the chance to do yet, but I wanted to see if anyone has seen the behavior before?
My father's first assumption was something to do with the vacuum control to the transmission but I read in the manual vacuum was only used on the Ford gas engine/tranny combos. Where as on the Cat 3208 they used a physical linkage from the throttle body? Might that be out of adjustment?

Thanks for any insight, will update with how the fluids look hopefully tomorrow.
Connor Krukosky
Elkton, MD
1979 FC35RB
Reply With Quote


allison, fc35, shifting

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Generator-auto start, auto stop Bill Sallee M380 (Unique Issues) 37 05-03-2015 01:39 PM
Allison Shifting Characteristics Dirty Birdie Transmission 19 04-29-2013 07:40 PM
Transmission still not shifting Donn B Transmission 35 03-06-2012 01:17 AM
Gen auto start---also auto stop? tiger38117 PT & WB (Twin Axle Pusher Unique Issues) 2 03-03-2012 10:43 PM
6V92 + Allison auto 45k miles pahlwest Parts and Other Items For Sale 0 05-28-2009 03:57 PM

Web Search:

All times are GMT -4. The time now is 10:15 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.