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Bad tranny, PNP switch or maybe speed sensor - Help :) 850 1993

posted by  jwalker on  Tue Jun 17 04:00 CST 2008
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last visit: Fri Jun 6 08:39 CST 2014
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Hopefully someone can help me with my dilemma. I know the 93's have a history of bad trannies, but I'm optimistic the tranny itself is okay.

Here is what is going...

Fluid is fine and has been changed. No visible leaks.

The tranny is fine when cold. Shifts normally.

Once warm, the shifter goes into P,D,R and N just fine. The problem seems to be that the tranny isn't downshifting in traffic. Then I need to rev the engine to get it to move. Once it gets really hot the car will hardly move. So I suspect a bad PNP switch. Feels like it might be stuck in 3rd gear?? Don't know for sure...

This morning I pulled the tranny codes and got a "2-3-2" - Missing Speedometer Signal. That was the only code. No engine codes. Weird since the speedometer is fine. Does this mean the computer isn't getting the speedo signal? That makes me suspect a bad speed sensor.

Can anyone help? Thanks in advance!

On a side note, boy am I glad I still have the 240 as a backup!!

Jim
--
93 850GLT 105k ( my new daily driver - former little old lady's car :) 90 244DL 278k






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New Bad tranny, PNP switch or maybe speed sensor - Help :) [850][1993]
posted by  jwalker  on Tue Jun 17 04:00 CST 2008 >


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