MCOM Transmission Issue
Thread Starter
|
Cross-Country
Joined: Sep 2024
Posts: 53
Likes: 13
MCOM Transmission Issue
Hey all, as most of you know, I have a '64 F100 with the 292 engine and an MX Cruise-O-Matic transmission. After running great for years, an issue with the transmission suddenly popped up two days ago. As I accelerate from a stop, the truck accelerates fine for a few seconds, then the transmission seems to slip. The rpms will jump up to 3000-3500 and it won't shift until I goose it and let off the accelerator. I've been told my intermediate band may need adjusting, so I'll be checking that out today. I've already topped off the atf, as it was just a little low, and that changed nothing. I'm also going to check the vacuum line going to the modulator to see if there are any cracks or even atf in the line. I'll be looking at the modulator to see if it's still good, possibly change that out. Anything I'm missing? Any other ideas about what could be causing this?
Lead Gopher
Joined: Aug 2012
Posts: 10,040
Likes: 1,590
From: Seattle
MX COM only has a front band and a rear band. No intermediate band. The rear band is the low/reverse band, and the front band is the 1-2 shift control. The later C4 and C6 have intermediate bands.
There is a hole in the floor with a small cover on the automatic trucks that is used to adjust the rear band.
There is a specialty tool used to make the adjustment - the T58L-7195-A shown plus a torque wrench, T-handles and some sockets.
Pictures of the FoMoCo tool T58L-7195-A - this one with a more comfortable handle.
There is a hole in the floor with a small cover on the automatic trucks that is used to adjust the rear band.
There is a specialty tool used to make the adjustment - the T58L-7195-A shown plus a torque wrench, T-handles and some sockets.
Pictures of the FoMoCo tool T58L-7195-A - this one with a more comfortable handle.
Thread Starter
|
Cross-Country
Joined: Sep 2024
Posts: 53
Likes: 13
Well, okay then. This might be a job for someone better than me. I've got a guy who worked at a trans shop for 10+ years coming over today to look at it. I'll just leave it alone until he gets here. Thanks for the info, my man. You're extremely helpful and it is appreciated.
Thread Starter
|
Cross-Country
Joined: Sep 2024
Posts: 53
Likes: 13
So, my transmission. guy came over. We took a ride and he got to experience how the truck was behaving. After returing home, he went under the truck to look it over. He wound up recommending a rebuild. He has a local guy who does good work for a decent price, so the tranny's going to get pulled and sent over to him to get worked over. Said if I were to pull the pan, I'd probably find metal in it. So, that's where I'm at. I'll let you all know how it turns out.
Thread
Thread Starter
Forum
Replies
Last Post
GreenMachinee
1987 - 1996 F150 & Larger F-Series Trucks
8
Nov 12, 2014 07:19 PM
Bigruss1987
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Mar 25, 2014 07:33 PM
1973F100Kid
1973 - 1979 F-100 & Larger F-Series Trucks
7
Jul 10, 2013 11:06 PM
auwmenfinger
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
3
Apr 21, 2011 10:01 PM
