Quote:
Originally Posted by 97 SL320
The shifter on this car is mechanical for park through drive then electric switches from 4 to 1. I wonder if the switch got something spilled on it. ( Later cars with the move left and right to shift 4 to 1 had a different set up. )
Try to get a hold of a scan tool that used the 38 pin under hood connection and access the trans computer. ( A 38 pin to OBD 2 cable won't do the job as it is the same as plugging in under the dash. ) Look at selected gear position and see if it is changing without moving the shifter.
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Now that is an interesting bit of info, thanks! I will look for that. The PO was a slob and there was much evidence of spillage in places, although it cleaned up pretty well. So it is entirely possible there is coke in those switches.
Also been doing some reading about the whole ATF wicking problem with the trans module. I am going to pull the module tonight and see if there is any evidence of that. Since it is completely separate from the trans, I suppose it's possible my indy did the rebuild and never checked the module for fluid migration up the wires.
Thanks for the leads, I'll try and narrow down some possibilities. While I do not have a 28 pin connector, much less the correct tool to use with it, I will see if I can use a DMM to assess if those switches are intermittent or not. I'm pretty good at finding intermittents like that, provided the switches are accessible without too much pain.