I own a 2000 model 1.4 automatic 206 with 163,000 km. For the last 2 months, I've been experiencing a problem with the car shifting late. It's started to go up to 4,000-4,500 rpm, especially in 1st and 2nd gears, and there's a knocking sound when changing gears. A year ago, the oil cooler, solenoid valves, and torque converter were replaced. I've only driven a maximum of 6,000 km since these changes. What could be the reason?
Ozzy16