Allison ATS transmission running hot
I have an ATS transmission in my 2008 GMC 2500hd duramax. This was in the truck when I bought it at 99k miles. It has 130k on it now. It was running hotter then I liked it to so I changed the fluid and external filter. Didnít fix the problem so pulled the stock trans cooler and put in the PPE transmission cooler. Still no fix, not sure what to do next. Dip stick is hard to read so I made sure the fluid wasnít too high. Even went by a trans shop and had them check the fluid levels.
Not sure what to do now. Any help would be great.