Tinman1956
New member
- Joined
- Aug 2, 2019
- Posts
- 2
I recently purchased a 2003 Monaco with a 1000 series Allison transmission.The second time out with it I experienced problems with acceleration which I now know is due to transmission staying in third gear.I believe the problem is due to nsbu switch which was changed by previous owner.Sometimes it would not start and would not go into reverse and would set check transmission light,so I adjusted switch slightly and everything was good for a little while then it started doing it again.I am going to change nsbu switch my question is are all nsbu switches for 1000 series with 2 plugs the same or are there different ones .