How to Replace Water Pump 01-11 Ford Ranger V6 4.0L
Difficulty: Advanced · About 150 min · Ford Ranger
Replace the water pump on a 2001–2011 Ford Ranger 4.0L V6, drain coolant, remove the fan and belt components, then refill and bleed the cooling system.
Tools you will need
- Razor Blade / Gasket Scraper
- Adjustable Wrench
- Funnel
- Socket Extensions
- Torque Wrench
- 19mm Wrench
- 10mm Wrench
- Anti-Freeze
- Flat Blade Screwdriver
- Phillips Head Screwdriver
- 7mm Socket
- 10mm Socket
- Drain Pan
- Ratchet
- Needle nose pliers
Parts and supplies
- Water pump and gasket
- Specified coolant
- Thermostat housing O-ring, if disturbed
Steps
Drain coolant and remove the intake tube
Work only when the engine is fully cool. Drain coolant into a pan, remove the intake cover and tube, and disconnect the negative battery cable.
Remove the fan and shroud
Record the belt path, loosen the fan-clutch nut with the proper holding tool, and unbolt the shroud. Lift the fan and shroud assembly out without damaging the radiator.
Remove the serpentine belt and pulley
Rotate the tensioner to release the belt and remove it. Loosen the water-pump pulley fasteners, remove the pulley, and set it aside.
Remove the old water pump
Disconnect the pump hoses and remove the pump bolts. Lower the pump and scrape old gasket material from the engine face without gouging the surface.
Install the replacement pump
Position the new gasket and pump, start all bolts by hand, and tighten them in the specified sequence and torque. Reconnect the hoses and secure their clamps.
Reinstall pulley, belt, and fan
Fit the water-pump pulley and route the belt according to its diagram. Reinstall the fan clutch and shroud, then reconnect the intake tube and battery.
Refill and bleed the system
Fill with the specified coolant mixture and follow the Ranger's bleeding procedure. Run the heater as directed while monitoring temperature and level, then check for leaks after cooling.
Check your vehicle’s repair manual for exact specifications and fit.