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David Dill
David Dill, Dodge Technician
Category: Dodge
Satisfied Customers: 1314
Experience:  19 years as Technician, 14 years with Chrysler Group LLC
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How to replace a water pump in a 1999 Dodge Dakota truck?

Resolved Question:

How to replace a water pump in a 1999 Dodge Dakota truck?
Submitted: 4 years ago.
Category: Dodge
Expert:  David Dill replied 4 years ago.
What engine do you have in the truck?
Customer: replied 4 years ago.
318
Expert:  David Dill replied 4 years ago.

Here are the instructions from the service manual.

water pump can be removed and installed without discharging the air conditioning system (if equipped)

  1. Disconnect battery negative cable.
  2. Drain cooling system. Refer to Cooling System - Draining and Filling in this group.
  3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse Remove upper radiator hose clamp and hose at radiator.
  4. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft Fan Blade and Viscous Fan Drive - 3.9L/5.2L/5.9L Engines Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts Fan Blade and Viscous Fan Drive - 3.9L/5.2L/5.9L Engines to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time
  5. If water pump is being replaced, do not unbolt fan blade assembly Fan Blade and Viscous Fan Drive - 3.9L/5.2L/5.9L Engines from thermal viscous fan drive.
  6. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top)
  7. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
  8. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
  9. Do not remove water pump pulley bolts at this time.
  10. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner Automatic Belt Tensioner Assembly - 3.9L/5.2L/5.9L Engines Relax tension from belt by rotating tensioner clockwise (as viewed from front) Automatic Belt Tensioner Assembly - 3.9L/5.2L/5.9L Engines When all belt tension has been relaxed, remove accessory drive belt
  11. Remove four water pump pulley-to-water pump hub bolts Fan Blade and Viscous Fan Drive - 3.9L/5.2L/5.9L Engines and remove pulley from vehicle.
  12. Remove lower radiator hose clamp and remove lower hose at water pump.
  13. Remove heater hose clamp and heater hose from heater hose coolant return tube.
  14. Loosen heater hose coolant return tube mounting bolt Coolant Return Tube - 3.9L/5.2L/5.9L Engines - Typical and remove tube from water pump. Discard the old tube O-ring
  15. Remove seven water pump mounting bolts Water Pump Bolts - 3.9L/5.2L/5.9L Engines
  16. Loosen clamp at water pump end of bypass hose Fan Blade and Viscous Fan Drive - 3.9L/5.2L/5.9L Engines Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket

David Dill, Dodge Technician
Category: Dodge
Satisfied Customers: 1314
Experience: 19 years as Technician, 14 years with Chrysler Group LLC
David Dill and 2 other Dodge Specialists are ready to help you

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  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
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  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
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