OEM 2004 Toyota Tacoma Water Pump

2004 Toyota Tacoma Parts Questions & Experts Answers

• Q: How to service and repair the water pump on 2004 Toyota Tacoma?

  A: Repair of the water pump begins with timing belt removal before proceeding with the water inlet and thermostat. First disconnect the No.2 oil cooler hose from the water pump followed by complete removal of the water pump after unbolt its 7 fasteners and performing light prying to extract it. A replacement water pump must be installed if you detect drips at the drain hole. At the same time, replace the timing belt when coolant leakage is detected on it. The check and replacement of the water pump depend on whether its bearing moves happily and soundlessly through the pulley. The fluid coupling needs the removal of four nuts followed by the fan before assessment for damage and oil leaks. A replacement may be necessary before reinstalling the fan with 7.4 Nm (75 kgf-cm, 65 inch lbs.) torque on the four nuts. Check for smooth turning of the fan pulley bracket while inspecting for replacement only when necessary then inspect timing belt components. When performing installation work remove old packing (FIPG) material with caution to prevent oil contamination of water pump and cylinder block contact surfaces. The process of components cleaning includes using a razor blade with a gasket scraper to remove all old packing material from gasket surfaces and sealing groove. Components must be thoroughly clean of loose materials before performing solvent cleaning on both sealing surfaces with a non-residue solvent. To install the water pump groove utilize the specified seal packing (Part No. 08826-00100 or equivalent) through a nozzle cut to 2 - 3 mm (0.08 - 0.12 inch) opening but do it within 5 minutes of application or else remove and reapply the material. Reinstall the nozzle cap before placing the water pump into position using 7 bolts and completing the torque at 20 Nm (200 kgf-cm, 14 ft. lbs.). The last installation steps involve fitting the No.2 oil cooler hose before attaching the thermostat followed by the water inlet and re-mounting the timing belt.