Why is my Transmission Slipping is a pretty broad question. There is no real answer without one of certified technicians diagnosing the issue. Slipping gears are usually due to normal wear and tear yet other thing may have happened. If you are experiencing your car shaking, difficulty shifting, or no reverse, pull over at a safe point. A Check Engine light will usually illuminate on with transmission issues. If you have any questions or need Auto Repair Near Me call us at 262-338-3670 or visit us at 1200 N Main Street, West Bend, WI 53090. Click here to schedule your reservation today!