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Allison transmission shifting problems

February 17th, 2009
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Ask a Transmission Mechanic:

Question:
From: Gus – Gonzales, TX

My transmission is having shifting problems especially when trying to shift into overdrive. Any suggestions?
Is there a filter/strainer inside the pan?
2003 Chevrolet Duramax with Allison Transmission.

Responce:
The Allison Transmission does have an internal filter and does not have a screen Filter!

Also this Transmission should be serviced every 6 months to one year and we do not recommend Transmission Flushes because of the electrical components its very easy to get fluid in the valve body an can cause more harm than good, especially on high millage transmissions.

allison_transmission

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  1. tampa service
    August 24th, 2009 at 15:40 | #1
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    Thanks for this great info. It has helped me out.

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