Originally Posted by beebedl
I have a 1997 328i
I was having RPM jumps while driving and just recently the car will not go into second gear and when i reach 3000 rpm it will then go into safe mode. I had the codes pulled when the transmission light came on and received 4 solenoid codes and 1 band/torque converter speed monitoring code.Transmission place that i took it to afterward said that all 5 codes are on the same wiring circuit. OBII reader pulled code P0720(output speed sensor). DO I Have a wiring problem,speed sensor,etc? any ideas?
When my trans went into safe mode, I decided to do a trans service, filter & fluid......& for whatever reason the codes & light cleared. I have not had a problem since........did the service 2 years ago @ 89,000 I have 97,000 now.
my theory is that with high mileage & age the fluid starts to gunk up causing valves, checks, etc. to stick & hang up.......
Do you know if or when your trans was serviced?