Q: How to drain and replace transaxle fluid and Transmission Filter for Pontiac Grand Prix?
A: At the specified time intervals, the transaxle fluid should be drained and replaced. Since the fluid will remain hot long after driving, perform this procedure only after everything has cooled down completely. Before beginning work, purchase the specified transaxle fluid and a new filter. Other tools necessary for this job include three jackstands to support the vehicle in a raised position, a drain pan capable of holding several quarts, newspapers, and clean rags. Raise and support the vehicle on jackstands. With a drain pan in place, remove the front and side transaxle pan mounting bolts. Loosen the rear pan bolts one turn. Carefully pry the transaxle pan loose with a screwdriver, allowing the fluid to drain. Remove the remaining bolts, pan, and gasket. Carefully clean the gasket surface of the transaxle to remove all traces of the old gasket and sealant. Drain the fluid from the transaxle pan, clean the pan with solvent, and dry it with compressed air. Be careful not to lose the magnet. Remove the filter from the mount inside the transaxle. Install a new filter and seal. Make sure the gasket surface on the transaxle pan is clean, then install a new gasket. Put the pan in place against the transaxle and install the bolts. If the bolts are equipped with captive crush washers, they should be replaced. Working around the pan, tighten each bolt a little at a time until the final torque figure is reached. Lower the vehicle and add the specified amount of automatic transmission fluid through the filler tube. With the shift lever in Park and the parking brake set, run the engine at a fast idle, but don't race it. Move the shift lever through each gear and back to Park. Check the fluid level when the engine is fully warmed up. Check under the vehicle for leaks during the first few trips.