Jonmiller
Active Member
I have a cat IT28g prefix 8CR i have a issue with the machine intermittenly not wanting to shift trans was rebuilt recently and looked great inside FNR lever doesnt fall in to the known problem group i have checeked all the wires from the FNR lever to the ecm as the manual says to no issue there just the wire from the key switch reading 10 volts only diffrence my fellow techs had swapped the ECM and that didnt fix the issue all of the solenoids on the trans look and function good and wires to the solenoids all have the proper Ohms readings also there is no codes and im lost and need help any one else have this issue before or can some one help it would be greatly appreciated