Transmission won't engage

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Thorowner

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Joined
Oct 26, 2020
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2
Hello!
I have a 1993 Thor with a 5.9 Cummins and the Allison AT542 4 speed.  I purchased this as a salvaged repo (cheap) and towed it home. I have been slowly going through things . RV wise everything functions.  The coach only has 42k miles on it and the Cummins runs excellent.  Once I got it running the Transmission won't go into gear,  or at least it doesn't seem like it is. It was missing the driveline which I replaced and had a broken brake line which I also replaced and bled the system. The brake indicator light on the panel stays on but the parking brake light goes out when I switch it out of "PB" into any gear. This is the cable shift Allison NOT the keypad type and I have verified it's moving the linkage at the Transmission.  I sure do hope someone can shed some light on this for me.
Thanks in advance! Marc
 
Hi and thank you. Yes I did check the fluid level. I probably should have mentioned that in my post.
Marc
 
If it has been setting for a very long time,, you may have to run it at high idle for a while( or higher) until the torque converter fills internally..  If you do that and no joy, then recheck the level and see if it's down.>>>Dan  ( The 5.9 is a great engine, you will love it..  I have it's big brother the 8.3 non electronic,, when shoving a big box around,, 10 MPG ain't chopped liver...
 

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