Not sure if this is the right section since it’s a DSM, but it’s a technical issue. Move it if need be.
So I had a pretty crappy weekend revolving around my 1993 Plymouth Laser RS (N/A w/ auto). Drove it to a show, and it drove fine. Went to leave, backed out of spot, put it in drive and it just free revved. Same for 2 and L. Park, reverse and neutral work fine, but all forward gears are out.
-RPMs don’t suggest any load being applied
-Fluid levels appear fine (though technically hard to say since it hasn’t actually been run through gears, but no signs of any leaks and I had checked it a couple days before and it was good)
-All sensors and connections looked good (didn’t have a multimeter or values to check against though)
-Shifter linkage and position sensor are set correctly
Unfortunately the FSM points to Rear clutch or One-way clutch. Seems odd that they would go out so suddenly though. I’m honestly hoping it’s the valve-body (N-D control valve or Rear clutch exhaust valve seem most plausible) since I have a spare and it can be done w/o pulling tranny.
Who here has experience with the autos (F4A22)? Have you had, or known someone that has had similar issues, and what the cause ended up being? Hopefully it’ll be back at my house today so that I have tools to work on it and properly diagnose. Any inputs would be greatly appreciated though.
So I had a pretty crappy weekend revolving around my 1993 Plymouth Laser RS (N/A w/ auto). Drove it to a show, and it drove fine. Went to leave, backed out of spot, put it in drive and it just free revved. Same for 2 and L. Park, reverse and neutral work fine, but all forward gears are out.
-RPMs don’t suggest any load being applied
-Fluid levels appear fine (though technically hard to say since it hasn’t actually been run through gears, but no signs of any leaks and I had checked it a couple days before and it was good)
-All sensors and connections looked good (didn’t have a multimeter or values to check against though)
-Shifter linkage and position sensor are set correctly
Unfortunately the FSM points to Rear clutch or One-way clutch. Seems odd that they would go out so suddenly though. I’m honestly hoping it’s the valve-body (N-D control valve or Rear clutch exhaust valve seem most plausible) since I have a spare and it can be done w/o pulling tranny.
Who here has experience with the autos (F4A22)? Have you had, or known someone that has had similar issues, and what the cause ended up being? Hopefully it’ll be back at my house today so that I have tools to work on it and properly diagnose. Any inputs would be greatly appreciated though.