My 2000 S-Type with the Ford 5R55N transmission is having issues. Everything was fine with no problems until it decided it did not want to go anymore. It shifts into each gear and I feel the gearbox engage, but it will not move without revving up the RPMs and then just barely. I’m not showing any fault codes either.
I had already planned on changing filter and fluid so that has been done, but still no improvement.
Any suggestions of what to look for next?
1991 XJ40 Sovereign