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bluebirdvision
Top Member

USA
1079 Posts

Posted - 11/09/2007 :  1:56:25 PM  Show Profile  Reply with Quote
2002 Blue Bird International (Turd 444-E)shifts hard from 1st to 2nd gear once and a while. Today while on route driver steps on it from light it decides to erraticly shift up and down through the gears from a stop. (jerks the kids 1/2 to death.) When this bus and its sister bus was new we had them back to the distubutor several times for the transmission, they said that the hard shifting (which it has always has done) was normal for the model of transmission. The erratic shifting I believe is a new problem.

Any input would be appriechiated

Oh, BTW the bus has 75 thousand miles.

busgeek++
Advanced Member

United States
253 Posts

Posted - 11/09/2007 :  3:06:12 PM  Show Profile  Reply with Quote
Check to make sure the modulator cable isn't broken. Also, be nice, the T444E wasn't that bad, especially considering what they replaced it with :)

Buses are not a way of life, they are life
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98TomFord
Top Member

USA
812 Posts

Posted - 11/09/2007 :  3:39:13 PM  Show Profile  Visit 98TomFord's Homepage  Send 98TomFord an AOL message  Reply with Quote
I thought the AT545 was discontinued before 2002? Correct me if I'm wrong on that. My guess is that your bus has an Allison 2000 transmission in it, and those tranny's seem to have that jumpy problem from what I've seen where I work. Almost every bus with an A2000 has had the tranny either replaced or worked on multiple times to correct that jumping problem. That'd be my guess though, that's it's a A2000 and that it's just a junk tranny. Nothing wrong with the engine not to worry.

My Ford Can Turn On $50, Can Your Int? ~Ford Buses - Gems To The Eyes~
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78fordwayne
Top Member

USA
2868 Posts

Posted - 11/09/2007 :  5:09:37 PM  Show Profile  Visit 78fordwayne's Homepage  Send 78fordwayne an AOL message  Send 78fordwayne a Yahoo! Message  Reply with Quote
I think it would be a A2000 trans. Ive never seen a 2002 International with a AT545.

Robert B.

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bluebirdvision
Top Member

USA
1079 Posts

Posted - 11/09/2007 :  7:40:37 PM  Show Profile  Reply with Quote
See the below link (ebay listing)

http://cgi.ebay.com/ebaymotors/2002-International-3800-T44E-71-Passenger-School-Bus_W0QQitemZ110188997364QQihZ001QQcategoryZ6728QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I think Richard (or someone)said that the 545 could still be spec'd in 2002

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78fordwayne
Top Member

USA
2868 Posts

Posted - 11/10/2007 :  5:37:08 PM  Show Profile  Visit 78fordwayne's Homepage  Send 78fordwayne an AOL message  Send 78fordwayne a Yahoo! Message  Reply with Quote
do you know how many gears it shifts?
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dem84skeeprollinup
Top Member

USA
888 Posts

Posted - 11/10/2007 :  6:22:44 PM  Show Profile  Click to see dem84skeeprollinup's MSN Messenger address  Reply with Quote
we have 6 2003 bb INT 3800's w 466 and at545's. The first set had a september of 01 manufacture date for the body and the other was sometime in 02.

heres the one built in 01

http://busyard.byethost7.com/kris03intlbb0001.html

Do the world a favor and bring back GMC and Ford conventional chassis......

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bluebirdvision
Top Member

USA
1079 Posts

Posted - 11/10/2007 :  6:46:18 PM  Show Profile  Reply with Quote
quote:
Originally posted by 78fordwayne

do you know how many gears it shifts?



Not sure will pay attention tuesday

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78fordwayne
Top Member

USA
2868 Posts

Posted - 11/13/2007 :  7:51:28 PM  Show Profile  Visit 78fordwayne's Homepage  Send 78fordwayne an AOL message  Send 78fordwayne a Yahoo! Message  Reply with Quote
Talking about hard shifting.. Today I drove a 99 3800 Blue Bird with a AT545. This thing would not down shift into first until I came to a complete stop. And when it finaly went into first I thought someone rear ended me. The bus would jump forward and make a loud bang! Im sure it will be the next to go LOL

Robert B.

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bluebirdvision
Top Member

USA
1079 Posts

Posted - 11/14/2007 :  05:39:18 AM  Show Profile  Reply with Quote
quote:
Originally posted by 78fordwayne

Talking about hard shifting.. Today I drove a 99 3800 Blue Bird with a AT545. This thing would not down shift into first until I came to a complete stop. And when it finaly went into first I thought someone rear ended me. The bus would jump forward and make a loud bang! Im sure it will be the next to go LOL



The bus in question also does this. I believe it is a 4-speed transmission, max speed was about 55MPH

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Edited by - bluebirdvision on 11/14/2007 05:43:56 AM
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Nick
Advanced Member

USA
333 Posts

Posted - 11/14/2007 :  1:18:47 PM  Show Profile  Send Nick an AOL message  Reply with Quote
I ride a bus right now (2000 AmTran RE) with a 545 and it does the 1/2 back-and-forth shifting too. So pleasant when you're sleeping in the morning and then you get woken up by THUNKA-THUNKA-THUNKA-THUNKA...

IC the future, and it is bright.

Edited by - Nick on 11/14/2007 1:19:41 PM
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bluebirdvision
Top Member

USA
1079 Posts

Posted - 11/14/2007 :  1:20:45 PM  Show Profile  Reply with Quote
quote:
Originally posted by AmTranRE14

I ride a bus right now (2000 AmTran RE) with a 545 and it does the 1/2 back-and-forth shifting too. So pleasant when you're sleeping in the morning and then you get woken up by THUNKA-THUNKA-THUNKA-THUNKA...



Our TC- 2000 used to do that too.

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wgloff
Senior Member

USA
54 Posts

Posted - 11/16/2007 :  04:14:13 AM  Show Profile  Visit wgloff's Homepage  Reply with Quote
Check wiring to the modulator on the left side of the transmission. Also, the modulator itself will go bad and shorten the stroke internally, which will cause erratic shifting.

Hope this helps.
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