2000 GMC Safari V6 4.3L ACDelco Professional Engine Water Pump

1. step 1 : Draining the Coolant Jump to 0:28

   • Have a drain pan ready
   • Loosen the hose clamp on the coolant hose
   • Remove the hose
   • Drain the coolant
   • Slide the hose on to the radiator
   • Tighten the hose clamp

2. step 2 : Removing the Serpentine Belt Jump to 1:25

   • Loosen the 13mm bolts on the water pump pulley
   • Attach a 3/8" breaker bar to the belt tensioner
   • Turn the tensioner counterclockwise
   • Pull the belt off the pulleys and out of the engine bay
   • Release the tensioner

3. step 3 : Removing the Idler Pulley Jump to 2:40

   • Remove the 15mm bolt from the idler pulley
   • Pull the idler pulley off the engine

4. step 4 : Removing the Radiator Hose Jump to 3:00

   • Position the drain bucket underneath the hose
   • Loosen the hose clamp
   • Remove the hose from the water pump

5. step 5 : Removing the Water Pump Pulley Jump to 4:14

   • Remove the 15mm bolt from the pulley
   • Pull the pulley off the engine

6. step 6 : Removing the Water Pump Jump to 4:57

   • Disconnect the hose clamp
   • Remove the hose from the water pump
   • Remove the two 15mm bolts on either side of the water pump
   • Remove the water pump

7. step 7 : Installing the Water Pump Jump to 11:16

   • Clean the mating surface on the engine
   • Place the gaskets on the water pump
   • Put the water pump in place
   • Tighten the 15mm bolts
   • Torque the 15mm bolts to 33 foot-pounds
   • Put the hoses in place
   • Tighten the hose clamps

8. step 8 : Installing the Water Pump Pulley Jump to 16:10

   • Line up the pulley, bushing, and bolt
   • Place the pulley on the engine
   • Thread the pulley bolt by hand
   • Tighten the pulley bolt with a 15mm socket and ratchet

9. step 9 : Installing the Idler Pulley Jump to 16:34

   • Line up the idler pulley, bushing, and bolt
   • Place the idler pulley on the engine
   • Thread the idler pulley bolt by hand
   • Tighten the idler pulley bolt with a 15mm socket and ratchet

10. step 10 : Installing the Serpentine Belt Jump to 16:57

    • Familiarize yourself with the belt routing diagram
    • Put the belt over the A/C compressor pulley
    • Loop the belt under the power steering pump pulley
    • Bring it over the water pump pulley
    • Bring it under the idler pulley
    • Bring it over the crank pulley
    • Attach a 3/8" breaker bar to the belt tensioner
    • Turn the tensioner counterclockwise
    • Bring the belt over the alternator pulley
    • Check that the belt is routed correctly, using the diagram
    • Release the tensioner

11. step 11 : Refilling the Coolant Jump to 19:02

    • Open the coolant reservoir
    • Fill the reservoir to the full line
    • Tighten the cap
    • Start the truck
    • Check the coolant level
    • Top off the coolant
    • Let the engine reach operating temperature
    • Let the engine cool and check the level
    • Top off the coolant as needed

Tools needed for replacement

• General Tools

  Razor Blade / Gasket Scraper

  Pick

  Drain Pan

• Materials, Fluids, and Supplies

  Anti-Freeze

  Paper Towels

  Gasket Adhesive

  Cloth Rags

• Pliers, Cutters & misc Wrenches

  Slip-Joint Pliers

• Ratchets & Related

  Socket Extensions

  Torque Wrench

  Ratchet

• Screwdrivers & Related

  Flat Blade Screwdriver

• Sockets - Metric

  13mm Socket

  15mm Socket

• Specialty Tools

  Dead Blow Hammer

• Wrenches - Metric

  13mm Wrench