From: pbogi@hotmail.com   
      
   Hello,   
      
   Periodically, my 1990 4runner will display the classic blinking OD light   
   with regard to the automatic transmission. When I pulled the codes a while   
   ago, they pointed towards problems with either the #1 or #2 solenoids or the   
   wiring to them. I don't recall the exact codes.   
      
   Fortunately, the problem disappeared for quite some time. Unfortunately, it   
   has come back. The problem though is that it may appear while driving and   
   then disappear by the time I get home where I can install the jumper in   
   order to read the codes.   
      
   As many here may already know, when the problem presents itself, the   
   transmission goes into limp mode and you have to actually shift through the   
   range of gears to drive the vehicle. Not a good situation if you need to   
   pull out in traffic. You have to use plenty of caution.   
      
   The strange thing is that when the transmission works, it seems to be fine.   
   Then when it doesn't, one would think that the transmission is shot. The   
   fluid is filled to the proper level, is clean, and doesn't smell burnt. It   
   almost seems like the problem may have something to do with temperature.   
   Another thought is that there may be a problem with the speed sensor(s). I'm   
   not sure how many, if any, or where they are located though. I read that   
   some models have one on the back of the instrument cluster, but when I had   
   to replace the speedometer cable this past Winter there wasn't one there.   
      
   Does anyone here have any pointers on how to go about troubleshooting the   
   problem?   
      
   Thanks in advance to those who post a reply to the group.   
      
   Peter.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)