I have a 94 4.0 auto trans. Just bought it, and it shifts ok but when it is cold it kinda hangs in gears for a couple min till its warmed up. My question to you guys is do you perform trans services or just leave it be in fear of making matters worse? I have always been a firm believer of leaving the trans fluid alone because if the disks are worn and you flush all the debri out of it thats keeping those disks grabbing the new fluid will actually cause the trans to slip worse. Any on had any experance with this? Works well, or leave her be and shop around for a used trans or go extream and rebuild myself?