Water Pump Replacement
Special Tools
EN 46104 Water Pump Pulley Holding Tool
Scheme 4
Scheme 5
Scheme 6
- Drain the cooling system. Refer to «Cooling System Draining and Filling (Static Fill)»(ref-610069-S38071288072014042100000) , «Cooling System Draining and Filling (Vac N Fill)»(ref-610069-S10278530552014042100000) .
- Remove the drive belt. Refer to «Drive Belt Replacement»(ref-610074-S12949437722014042100000) .
- Remove the right engine strut mount. Refer to «Engine Mount Strut Replacement - Right Side»(ref-610074-S22217156762014042100000) .
- Remove the right engine mount strut bracket. Refer to «Engine Mount Strut Bracket Replacement - Right Side»(ref-610074-S28793345382014042100000) .
- Use the EN 46104 tool in order to retain the water pump pulley.
- Remove the water pump pulley bolts.
- Remove the water pump pulley.
- Remove the water pump bolts and DISCARD the bolts.
- Remove the water pump.
- Remove and DISCARD the water pump seal.
- Carefully clean the water pump sealing surfaces.
Scheme 7
- Install a NEW water pump seal.
- Install the water pump.
- Install the NEW water pump bolts and hand tighten the water pump bolts. CAUTION: This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component. CAUTION: Refer to «Fastener Caution»(ref-610030-S34989781762014042100000) .
- Tighten the water pump bolts in sequence. On the initial pass, tighten the bolts in sequence to 10 (89 lb in). On the second pass, tighten the bolts in sequence to 10 (89 lb in). On the final pass, tighten the bolts in sequence shown an additional 45°.
- Install the water pump pulley bolts.
- Use the EN 46104 tool in order to retain the water pump pulley.
- Install the water pump pulley bolts and tighten to 10 (89 lb in).
- Install the right engine strut mount. Refer to «Engine Mount Strut Replacement - Right Side»(ref-610074-S22217156762014042100000) .
- Install the right engine mount strut bracket. Refer to «Engine Mount Strut Bracket Replacement - Right Side»(ref-610074-S28793345382014042100000) .
- Install the drive belt. Refer to «Drive Belt Replacement»(ref-610074-S12949437722014042100000) .
- Fill the cooling system. Refer to «Cooling System Draining and Filling (Static Fill)»(ref-610069-S38071288072014042100000) , «Cooling System Draining and Filling (Vac N Fill)»(ref-610069-S10278530552014042100000) .
Scheme 8
| Callout | Component Name |
|---|---|
| Preliminary Procedure Drain the coolant. Refer to Cooling System Draining and Filling (Static Fill) , Cooling System Draining and Filling (Vac N Fill) . Remove radiator inlet hose. Refer to Radiator Inlet Hose Replacement . Remove radiator outlet hose. Refer to Radiator Outlet Hose Replacement . Remove fan shroud top mounting bolts and pushpin from radiator and position fan shroud rearward. Refer to Cooling Fan and Shroud Replacement . Remove transmission inlet cooling hose from radiator. Refer to Fluid Cooler Inlet Hose Replacement . Remove transmission outlet cooling hose from radiator. Refer to Fluid Cooler Outlet Hose Replacement . Remove coolant reservoir hose from radiator filler neck. Remove the front bumper fascia upper support. Refer to Front Bumper Fascia Upper Support Replacement (Acadia, Enclave, Traverse) . Pinch fastening tabs together at top of condenser to remove from radiator and position forward. Remove side rubber air deflectors from radiator tanks. | |
| 1 | Radiator Mounting Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in) |
| 2 | Radiator NOTE: Bottom of condenser mounts into holding fixtures at bottom of radiator. Radiator will slide out between the condenser and fan shroud. |
| CAUTION |
|---|
| Refer to Fastener Caution . |
| NOTE |
|---|
| Bottom of condenser mounts into holding fixtures at bottom of radiator. Radiator will slide out between the condenser and fan shroud. |
Radiator Replacement
Scheme 9
| Callout | Component Name |
|---|---|
| Preliminary Procedure Remove the front bumper impact bar. Refer to Front Bumper Impact Bar Replacement (Acadia) . Reposition the power steering fluid cooler without disconnecting the lines. Refer to Power Steering Fluid Cooler Replacement . | |
| 1 | Radiator Air Side Baffle and Deflector Retainer (Qty: 6) |
| 2 | Radiator Air Side Baffle and Deflector Retainer (Qty: 4) |
| 3 | Radiator Air Side Baffle and Deflector Procedure Pull the sides of the radiator air side baffle and deflector away from the radiator and lower to remove. |
Radiator Air Side Baffle and Deflector Replacement
Scheme 10
| Callout | Component Name |
|---|---|
| Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . | |
| 1 | Coolant Heater Procedure Disconnect the coolant heater cord from the coolant heater. Remove the coolant heater. |
Coolant Heater Replacement
Scheme 11
Scheme 12
- Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-610031-S32962375812014042100000) .
- Disconnect the coolant heater power supply cord from the coolant heater.
- Lower the vehicle.
- Disconnect the coolant heater cord clips (3) from the cylinder heads.
- Disconnect the coolant heater cord clip from the engine wiring harness.
- Remove the coolant heater cord (1) from the vehicle.
Installation Procedure
- Position the coolant heater cord (1) to the engine harness.
- Connect the coolant heater cord clip to the engine wiring harness.
- Connect the coolant heater cord clips (3) to the cylinder heads.
- Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-610031-S32962375812014042100000) .
- Connect the coolant heater cord to the coolant heater.
- Lower the vehicle.
Scheme 13
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel (S/P) configuration that allows the engine control module (ECM) to operate both fans together at low or high speeds. The cooling fans receive positive voltage from the cooling fan relays which receive battery positive voltage from the underhood fuse block.
During low speed operation, the ECM supplies the ground path for the low speed fan 1 relay through the fan 1 relay control circuit. This energizes the fan 1 relay coil, closes the relay contacts and supplies battery positive voltage from the Fan 1 fuse through the cooling fan motor supply voltage circuit to the left engine cooling fan. The ground path for the left cooling fan is through the S/P fan 2 relay and the right engine cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the ECM continues to supply battery positive voltage for the right cooling fan by grounding the coil of the fan 1 relay. The ECM also grounds the high speed fan 3 relay and the S/P fan 2 relay through the fan 3 relay control circuit. This energizes the S/P fan 2 relay coil, closes the relay contacts and provides a direct ground path for the left engine cooling fan. At the same time the fan 3 relay coil is energized closing the relay contacts and providing battery positive voltage from the Fan 2 fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have their own ground path. The result is a parallel circuit with both fans running at high speed.