Tranny trouble Mc8 Allison 740

[revbusnut]

After sitting for 6 or 8 weeks our bus was ready for its maiden camping voyage.  Needed an inspection and noticed the tranny pulsing and stuttering between shifts 2-3 and 3-4 and continued stuttering at 60 on the way to town.  Is this normal. Does it just need fluid change and filters.  Please tell me I don't need rebuild.  She is a MC 8 1978 model. Ran like a top before.  We went on our trip only 100 miles round trip but still had this problem.  Any help would be greatly appreciated.  Thanks,  Revbusnut

[plyonsMC9]

Greetings Revbusnut,

Welcome to the board!

Any luck with diagnosing this?  Where are you located?  Fluid level OK?  Busnuts, any thoughts for Revbusnut?

Let us know!

Best Regards, Phil

[Hi yo silver]

I seem to remember being told that some MC8s had a shift module mounted on the side of the transmission.  Could your problem be with this, or maybe a vacuum line?  I'm sure one of you can correct me, or add to this...FWIW
Dennis