Water Pump Installation

Special Tools 

EN-45059  Angle Meter

For equivalent regional tools, refer to Special Tools .

1. Clean the sealing surfaces.
2. The water pump and engine front cover bolts are located as followed:
   Fig 1: Water Pump And Engine Front Cover Bolts

   Courtesy of GENERAL MOTORS COMPANY
   • Engine front cover special bolt without cone end 60 mm (2.362 in) (1).
   • Engine front cover standard bolt with cone end 52 mm (2.047 in) (2).
   • Water pump bolt 25 mm (0.984 in) (3).
3. Install the 2 NEW front cover bolts (1).
   Fig 2: Identifying Water Pump Bolts

   Courtesy of GENERAL MOTORS COMPANY
4. Install the water pump (2) and a NEW water pump gasket (1).
   Fig 3: Water Pump, Bolts And Gasket

   Courtesy of GENERAL MOTORS COMPANY
5. Install the 5 water pump bolts (4) and the 3 long engine front cover bolts (3) and tighten all 10 bolts in a cross sequence to 8 N.m (71 lb in).
   CAUTION: Refer to Fastener Caution .
6. Tighten the 2 water pump bolts (1) to an additional 30 degrees, using the EN-45059  meter
   Fig 4: Identifying Water Pump Bolts

   Courtesy of GENERAL MOTORS COMPANY
   CAUTION: Refer to Torque-to-Yield Fastener Caution .