dvbrien
15+ Year Contributor
- 87
- 24
- Nov 3, 2005
-
Rockton,
Illinois
During the course of the summer I got a car 93 FWD AUTO from a friend who knew little to nothing about these cars. He told me the trans was gone... It seem to make the slight shifting noise but never engages. Free revs in any gear. The car looks real good and runs even better so... After looking into the under dash I discovered a lot of home engineering that I would love to beat someones ass for! Basically I found a constant power wire running from the Auto Trans fuse, supplying power to the Cooling fans on the radiator. Still using the 10amp fuse and ran the power to the constant power side of the fuse. When I pulled the wire and fuse it looked like Charcoal. the plastic was burned up. So I got to thinking that it may not be the trans at all but, maybe the TCU was not longer getting power and thus wouldn't operate the Trans. SO I pulled the TCU to inspect it. Nothing appears bad, burned or smelly. X-ed that. Then I pulled the entire fuse panel, dismantled it to see which wire went from the Fuse Block to the TcU. Unless you are very mechanically inclined and very patient don't attempt this at home! Anyhow this is the plug that the non-charged side of the fuse leads to...
You must be logged in to view this image or video.
How ever when I later put everything together as seen here. I checked the pin on the plug where this fuse led to to and low and behold there is not a wire in this harness plug that lead from the pin on the fuse panel.
You must be logged in to view this image or video.
So, I guess I am wondering if someone else has the FWD Auto N/A if you could pull your #9 fuse and see if you car still moves... I'm betting it does!
You must be logged in to view this image or video.
You must be logged in to view this image or video.
Then I also tried to pull the Codes using the Plymouth Laser Site... http://www.plymouthlaser.com/tcucodes.htm And got nothing no pulses nada, using an analog meter. Just to make sure I also hooked it up to the MPI port and then it was pulsing...This leads me to believe my original theory that the TCU is bad or not getting power. I have a full schematic on all the wires for the ECU plug but, is there a schematic for the wires on the TCU plugs for the N/A FWD 93? So I am up in Arms! What the Hell. I don't know what is wrong, TCU, or Trans. Suggestions or loaner parts would be greatly appreciated! Daniel