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Old 03-30-2024, 01:13 AM   #1
New Member
 
Join Date: Mar 2024
Posts: 3
Year: 1998
Chassis: Bluebird TC2000
Engine: 5.9L Cummins 12V
Where can I find my TCM? Allison MD3060

Hello all,

I am looking for my TCM for an Allison MD 3060 on my 1998 Bluebird TC2000 with a 5.9 Cummins.

No, its not behind my windshield wiper door.
No, its not inside the frame rails by the transmission.
No, its not under the driver seat under the bus.

I am at a loss at this point and all suggestions have been wild goose chases.

Any help would be greatly appreciated.

John Willhelm is offline   Reply With Quote
Old 03-30-2024, 06:37 AM   #2
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,914
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
follow the harness.. the MD3060 has a large wiring harness that comes off of it.. follow where it goes.. a nig number of the wires in the transmission harness will land at the TCM
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Old 04-01-2024, 10:04 PM   #3
Mini-Skoolie
 
Join Date: Oct 2009
Posts: 63
Year: 1972
Coachwork: wayne
Chassis: international
Engine: 345
Front engine or Rear engine?
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Old 04-07-2024, 06:00 PM   #4
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Join Date: Mar 2024
Posts: 3
Year: 1998
Chassis: Bluebird TC2000
Engine: 5.9L Cummins 12V
Quote:
Originally Posted by shortbus4x4 View Post
Front engine or Rear engine?
It's a front engine.
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Old 04-07-2024, 06:02 PM   #5
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Join Date: Mar 2024
Posts: 3
Year: 1998
Chassis: Bluebird TC2000
Engine: 5.9L Cummins 12V
Quote:
Originally Posted by cadillackid View Post
follow the harness.. the MD3060 has a large wiring harness that comes off of it.. follow where it goes.. a nig number of the wires in the transmission harness will land at the TCM
I did this. I followed the harness along the frame until it goes into the body of the bus near the back of the radiator along with several other wiring harnesses. I opened up the panel behind the driver side windshield motor cover. There was a fuse panel there and the wiring harness from the transmission ran behind this panel and into the cab. I assume it eventually lands at the ECU and shifter panel. So now I will have to pull the dash to see if where it ends up.
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Old 04-07-2024, 09:22 PM   #6
Bus Crazy
 
Join Date: May 2018
Location: topeka kansas
Posts: 1,786
Year: 1954
Coachwork: wayne
Chassis: old f500- new 2005 f-450
Engine: cummins 12 valve
Rated Cap: 20? five rows of 4?
Follow the wires

I think some of the TEC II TCM are part of the shift pad. I think it is likely that the TCM Is the shifter.

Look at eBay for TEC II TCU I think you will find this big box that is part of shifter.

William
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Old 04-07-2024, 10:03 PM   #7
Bus Nut
 
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Join Date: Oct 2021
Location: Jacksonville, FL
Posts: 759
Year: 2003
Coachwork: BlueBird
Chassis: TC2000 28ft
Engine: Cummins ISB 5.9 24v, MD3060
Rated Cap: 14
Quote:
Originally Posted by John Willhelm View Post
I did this. I followed the harness along the frame until it goes into the body of the bus near the back of the radiator along with several other wiring harnesses. I opened up the panel behind the driver side windshield motor cover. There was a fuse panel there and the wiring harness from the transmission ran behind this panel and into the cab. I assume it eventually lands at the ECU and shifter panel. So now I will have to pull the dash to see if where it ends up.

Just double checking here.. My wiring harness runs along the frame rail, past the alternator and then past the radiator. Its on the door side of the bus under behind the wiper door. Just verifying you checked both sides. I haven't seen a TC2000 Front engine that had it elsewhere. The fuse panel is on the driver side for me.
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Old 04-11-2024, 10:58 PM   #8
Skoolie
 
Join Date: Dec 2019
Location: Sanford Florida
Posts: 200
Year: 2000
Coachwork: Thomas
Chassis: MVP/ER
Engine: Cat3126B 230hp
Rated Cap: 48
My TCM was under the the front seat area on chassis for my rear engine Thomas bus.
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