…my 1993 automatic 2.5 L is having trouble shifting from first to second gear. Fluid is full. It was slipping for a bit. It pretty much just violently shakes when it tries to go to second. I can drive it in second gear to the coffee shop about a mile away but can’t take it out wheeling until I can afford a transmission rebuild, which it probably needs. In the meantime, any suggestions on anything that can be checked or changed that might fix it? Do yj autos have transmission vacuum moderators or transmission sensors that I could try replacing? Hoping for a cheap/quick fix if one exists. Thanks.