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Old 10-03-2022, 10:00 AM   #1
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Join Date: Oct 2022
Posts: 7
Year: 2008
Coachwork: Blue Bird
Chassis: A3RE Full Size
Engine: 8.3L 3000PTS
Question 2009 Bluebird AARE 8.3L 3000PTS TCU Location

I've tried following the wires from the tranny, but they just seem to disappear either forward in the body or up toward top of engine and don't seem to go to anything that appears to be a TCU looking device.


Anyone know where the TCU is located on this particular chassis?



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Old 10-03-2022, 10:18 AM   #2
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Join Date: Oct 2021
Location: Jacksonville, FL
Posts: 709
Year: 2003
Coachwork: BlueBird
Chassis: TC2000 28ft
Engine: Cummins ISB 5.9 24v, MD3060
Rated Cap: 14
Mine is a front engine, but behind the windshield wiper door. Easy to check, but might be wrong for you. Bluebird did a good job of hiding all the wires into the shared harnesses.
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Old 10-03-2022, 11:41 AM   #3
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Chassis: A3RE Full Size
Engine: 8.3L 3000PTS
Thanks for replying. Checked the wiper compartments...not there.
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Old 10-03-2022, 09:06 PM   #4
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Engine: Ford Triton V-10
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First of all, it sounds like you may not know what you're looking for which means you could be overlooking it. I've done that myself - if it had been a snake it would have bit me! So I've attached a couple pics from Google search what the TCU should look like for your transmission. Hopefully that helps you locate it.
Attached Thumbnails
Transmission-Control-Modules-TCM-Allison-2500PTS-15943451.jpg   Transmission-Control-Modules-TCM-Allison-2500PTS-15943450.jpg  
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Old 10-19-2022, 03:09 PM   #5
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Join Date: Aug 2019
Location: Houston, TX
Posts: 11
Year: 2001
Engine: Cummins 8.3L ISC w/CAPS
tcu location

I have a 2000-2001 Thomas pusher w/MD3060 and my TCU was mounted under the left headlight. I assume bc it's tied directly to the shifter and then back to the trans.

Are you unlocking OD?
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