Adjusting the 1987 Plymouth Horizon automatic transmission?

To adjust the automatic transmission of a 1987 Plymouth Horizon, start by checking the Transmission Fluid level with the engine running and the vehicle in park. If the fluid is low, add the appropriate type of ATF. For adjustments, locate the kickdown cable and ensure it is properly tensioned; it should have a slight slack when the throttle is closed. It's also important to inspect for any leaks and ensure the transmission filter and fluid are changed as part of regular maintenance to keep the transmission functioning smoothly.