Nissan 31728-41X03 Oil Strainer Assembly

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At the specified intervals, the transmission fluid should be drained and replaced. Since the fluid will remain hot long after driving, perform this procedure only after the engine has cooled down completely. Before beginning work, purchase the specified transmission fluid and a new filter and pan gasket. Other tools necessary for this job include a floor jack, jackstands to support the vehicle in a raised position, a drain pan capable of holding at least eight quarts, newspapers and clean rags. Raise the vehicle and support it securely on jackstands. Place the drain pan underneath the transmission pan. Remove the drain plug and allow the fluid to drain, then reinsert the plug and tighten it securely. Measure the amount of fluid drained. Remove the transmission pan mounting bolts, then remove the pan, prying gently if necessary. Carefully clean the gasket surface of the transmission and pan to remove all traces of the old gasket and sealant. Clean the pan with solvent and dry it. Some models are equipped with magnets in the transmission pan to catch metal debris. Clean the magnet thoroughly. A small amount of metal material is normal at the magnet. If there is considerable debris, consult a dealer or transmission specialist. Remove the strainer from the valve body inside the transmission. Clean the strainer with solvent and dry it with compressed air, if available. If compressed air isn't available, pour some clean automatic transmission fluid through it. Install a new O-ring on the strainer. Make sure the gasket surface on the transmission pan is clean, then install a new gasket on the pan. Put the pan in place against the transmission and install the bolts. Tighten each bolt a little at a time to the torque. Lower the vehicle and add the specified type of automatic transmission fluid through the filler tube. With the transmission in Park and the parking brake set, run the engine at a fast idle, but don't race it. Move the gear selector through each range and back to Park, then let the engine idle for a few minutes. Check the fluid level. It may be low. Add enough fluid to bring the level to the proper mark on the dipstick. Be careful not to overfill. Check under the vehicle for leaks during the first few trips. Check the fluid level again when the transmission is hot.

Remove the transmission pan mounting bolts, then remove the pan, prying gently if necessary. Carefully clean the gasket surface of the transmission and pan to remove all traces of the old gasket and sealant. Clean the pan with solvent and dry it.

Lower the vehicle and add the specified type of automatic transmission fluid through the filler tube. With the transmission in Park and the parking brake set, run the engine at a fast idle (but don't race it). Move the gear selector through each range and back to Park, then let the engine idle for a few minutes. Check the fluid level, which may be low, and add enough fluid to bring it to the proper mark on the dipstick. Be cautious not to overfill.