Hi Ranger Fans! I have a 94 SuperCab, 4.0 w/200k. After it warms up a little, and with the A/C running, it wants to stumble on takeoffs. Also, with the A/C still running, it shifts a little rough between 3rd & 4th gear, this is a 4sd auto tranny. These problems don't happen with the A/C off. Any suggestions?