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Discussion Starter #1
Hey guys,

I want to reach out to see if anyone had this experience with their XD and Aisin. 3 days ago pulled my travel trailer without issues.
2 days ago, as I’m driving AT trans light goes, I checked the code with my EZLynk and got P0770 shift solenoid Eand tranny starts to shift at weird points, over revving and shifting hard.
Yesterday I fired the truck up and had a hard time getting moving followed by a HARD shift into second and followed by the same weird shift pattern and hard shifting until the tranny got to operating temp when it somewhat got better. This morning, had a very hard time getting the truck moving so parked it until I can diagnose. Any thoughts? Anyone else with a similar experience? 100,000km and CTT 1.9.9 tuning.
I read that oil and filter are a common issue or faulty Shift solenoid.
 

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A good starting point would be to re-load your tunes and pull the tranny dipstick and have a look at quality and quantity of fluid.
 
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