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 AT545 wont shift
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Thomasbuilt_547
Active Member

23 Posts

Posted - 10/19/2013 :  2:24:47 PM  Show Profile  Reply with Quote
I'm looking at a used bus, 2001 International BB with a T444E and an AT545. The ad says that the trans does not always want to up-shift normally and the check trans light is on. Any Allison experts know what might cause this?

mastertech
Advanced Member

222 Posts

Posted - 10/19/2013 :  5:11:45 PM  Show Profile  Visit mastertech's Homepage  Reply with Quote
The at545 is a mechanical trans so I doubt it would get a check trans light unless it had a filter minder or something. Id venture to say it has an electronic trans and the causes for a light from that are in the hundreds. Most common would be wiring or bad soleniods.
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bwest
Administrator

United States
2236 Posts

Posted - 10/21/2013 :  08:28:43 AM  Show Profile  Reply with Quote
quote:
Originally posted by mastertech

The at545 is a mechanical trans so I doubt it would get a check trans light unless it had a filter minder or something. Id venture to say it has an electronic trans and the causes for a light from that are in the hundreds. Most common would be wiring or bad soleniods.



I tend to agree but am wondering what year they started putting the 2000 series in a bus. I know my oldest ones are 2002s.

Bryan
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Fastback
Top Member

939 Posts

Posted - 10/21/2013 :  10:56:29 AM  Show Profile  Reply with Quote
The Allison 2000 became available as an option in late 1999

Why yes, the ORIGinal CHARGER is a Fastback

Edited by - Fastback on 10/21/2013 11:08:09 AM
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