How to Replace Engine Water Pump 00-03 GMC Yukon SUV
Difficulty: Advanced · About 180 min · Gmc Yukon
Replace the engine water pump on a 2000–2003 GMC Yukon, drain coolant safely, transfer the fan and belt components, and refill and bleed the cooling system.
Tools you will need
- Razor Blade / Gasket Scraper
- Flat Blade Screwdriver
- 15mm Socket
- 8mm Socket
- Drain Pan
- 10mm Socket
- Ratchet
Parts and supplies
- Engine water pump and gasket
- Water neck O-ring
- Specified coolant
Steps
Disconnect the battery and intake tube
Work only after the engine is cool. Disconnect the negative battery cable, loosen the intake clamps, and remove the intake tube to clear access at the front of the engine.
Remove the fan shroud and fan
Remove the shroud fasteners and release its hose clips. Use the proper fan-clutch tool to loosen the fan, then lift the fan and shroud out without damaging the radiator.
Remove the serpentine belt
Record the belt route or confirm the under-hood diagram is readable. Rotate the tensioner to release belt tension, remove the belt, and let the tensioner return slowly.
Drain coolant and disconnect pump hoses
Place a drain pan beneath the radiator and drain the coolant. Release the clamps and remove the radiator and heater hoses from the pump, catching remaining coolant.
Remove the tensioner and old pump
Remove the belt-tension arm and water-neck fasteners, then remove the pump bolts. Lift the pump away and scrape old gasket material from the mounting face without gouging it.
Install the replacement water pump
Fit the new gasket and pump, start all bolts by hand, and tighten them in the specified sequence and torque. Replace the water-neck seal and reinstall its housing.
Reconnect hoses and accessories
Reconnect all coolant hoses and clamps, then reinstall the tensioner, belt, fan, shroud, and intake tube. Verify the belt follows its routing diagram and every connector is secure.
Refill and bleed the cooling system
Refill with the specified coolant mixture and follow the vehicle's air-bleeding procedure. Reconnect the battery, warm the engine while monitoring temperature, inspect for leaks, and recheck coolant level when cool.
Check your vehicle’s repair manual for exact specifications and fit.