Ncranson
-
Posts
1 -
Joined
-
Last visited
BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.
Thank you for your support!
Allison code P0843
in Engine and Transmission
Posted
If it is a factory transmission make sure to remove the solenoids from the aluminum part of the valve body and check for broken trim springs.