For a couple months now my car has been doing this strange thing. I apply gas, and it seems fine, and then it will shift (automatic) maintain my speed (around 25mph) and my rpms start to bounce between 1550 and 1600 or so. This is more often than not accompanied by a lurch. Very noticeable. The slower I go the bigger the lurch. Sometimes this will happen. Sometimes it won’t. Also when I’m at idle, sometimes the RPM will fluctuate between 400, and 1400, at no reasonable pattern. Please help!!! Only problems with my car, is it needs brake pads, rotors, and an oil leak from my distributor and oil pan.