Printable View
Success:clap2:
The auto is now working properly.
The problem was caused by the speed sensor ring moving down the output shaft due to the bolt at the end of the shaft coming loose.
I was able to tighten the bolt by removing the the transfer box rear cover plate.
I couldn't find a reference or torque setting for this bolt. So I guessed.
FYI
During my search on finding the solution to the auto problem I came across a document the details the ZF-4HP-22/24
Check out the E9 model in the attached url:
[ame]http://www.bmwe34.net/E34main/Trouble/Data/ZF%20Tech%20Guide.pdf[/ame]
The table on page 44 shows the position of the shift control solenoids MV1 and MV2. They are different to what I posted earlier.
Thanks All for your help.
Phil
A special thanks outback1 and Bob from Cohuna auto trans. outback1 offered parts and put me on to Bob. Bob advised me how to get to the output shaft bolt.
good to see you got it sorted out mate[thumbsupbig]
Can you remember how you did it? I have the same issue with all electrical tests passing there still isn't a detailed thread with pictures relating to this issue
I would call cohuna automatic transmissions but I live in the U.K. and I would hate to think how much the phone call would be 😂