OEM 2004 Buick Rainier Automatic Transmission Filter

2004 Buick Rainier Parts Questions & Experts Answers

• Q: How to Replace the Automatic Transmission Filter and Fluid on 2004 Buick Rainier?

  A: You need to elevate your vehicle before placing a drain pan under the transmission oil pan as the first step toward changing the automatic transmission fluid and filter. The range selector cable bracket requires securing in place using bolts before removing the oil pan Drain Plug. This allows unhindered pan lowering beside the cable without disconnecting it. Start by removing the front and side oil pan bolts before unwinding the rear bolts just four turns. The oil pan needs a rubber mallet strike to detach it while fluid drains before completely extracting the remaining bolts to remove the pan and gasket. Removal of the filter requires a firm twist motion as well as plier use to extract the filter seal stuck inside the pump before disposing of it properly. The fluid's appearance and the filter need investigation to check for clutch material along with bronze slivers or steel particles. Use solvent to clean both the transmission case and Oil Pan Gasket surfaces before eliminating all remnants of old gasket material. Install the new filter seal into the transmission case after coating it thoroughly with automatic transmission fluid while inserting it with an appropriate socket. Place the new filter in position before installing the oil pan using its new gasket and applying torque to the transmission case bolts with alternating and uniform rotation to 11 nm (97 inch lbs.). Add new transmission range selector cable bracket before tightening its bolts to 25 nm (18 ft. Lbs.). Secure the oil pan Drain Plug by applying gm p/n 12346004 sealant to its threads followed by fastening it to 18 nm (13 ft. Lbs.). The technician must fill dexron iii transmission fluid to its proper level while checking the cold fluid reading for the initial fill and inspecting the Oil Pan Gasket for any leaks.