90' 735i TRANS PROGRAM issue

[OneWire]

I could use some help. I own a 1990 735i BMW which was running fine since
I bought it 7 months ago. I was driving along at about 60 MPH and had
noticed my "E" / "M" light out on the dash; so I put the car in neutral
and then back into gear to see if it was just a contact issue. When I put
the car back in gear, it reved up as if I wasn't applying enough gas for
the current speed. My dash indicators now appeared.

I drove on another 30+ miles to work with no problems; then drove back
home (40 miles) without and problems either. The next day on my way home I
accelerated from a stop light and realized that the car was reving higher
than normal (it should have shifted at about 1500 but didn't). The RPM's
rose to about 2400 and then "TRANS PROGRAM" and "Clunk". I was in what I
no know to be called limp mode.

I try to do all my own electrical work after serving in the US Navy as an ectronics technician for over 10 years. I have been trying to figure this out but nothing conclusive yet. Here is what I have gone through:

1. Pulling over and turning the car off then right back on often makes the
problem go away ; smooth shifting and no Trans program light.

2. My alternator is putting out 13.20 - 13.77v (I thought that this was
erratic and low so I replaced the voltage regulator) Voltage regulator now
put out 13.85 13.95v - (it's the lower voltage when reving the engine ??)
I checked the voltage output with the battery disconnected and it made no
difference. *From what I have read, 13.8 - 14.2 is the ideal range.
**I had the battery load tested today and it checked good along with the charging rate.

3. Before the car revs up to 2400 RPM in 1st gear, if I switch to "M" mode
I can prevent the car from jumping into TRAN PROGRAM mode.

*I have don electrical troubleshooting on the MAF and Throttle
position I cleaned the MAF and now both of these electrical outputs cheked good. In fact, the car even runs smoother now (well, if I make it beyond the TRANS PROG issues)

- I have not experienced any reverse problems.


Any advice is appreciated in advance.


Thanks,

Theó

[SRR2]

My advice to you is to post this message to a more appropriate forum here, and not in the Classified FS/ WTB area.