Performed a/c tune-up on a Goodman straight cool system. Checked the electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. Replaced the air filter and washed the outdoor coil. I did find the outdoor fan motor is leaking lubricant. Presented repair options to the homeowners. No other major issues were found. The system is operational at this time.