Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 171 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENT (DIESEL)INSTALLATION PROCEDURE

2011 GMC Savana Special 4.8 A

Installation Procedure

2011 GMC Savana Special 4.8 ASECTION Installation Procedure

WARNING: This page is about a different car, the 2011 GMC Savana and 2011 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Water Pump Outlet Pipe Gasket, Water Pump, O-Ring, Nut And Bolts

Courtesy of GENERAL MOTORS CORP.

Lubricate the water pump O-ring (3) with engine oil.
Install the water pump outlet pipe gasket (4) and the lubricated water pump O-ring (3).

CAUTION:

Refer to Fastener Caution .

Install the water pump nut (1) and bolts (2). Ensure the correct length bolt is used in the proper location and tighten to 25 N.m (18 lb ft).

Fig 2: Water Pump Outlet Pipe Nuts And Studs

Courtesy of GENERAL MOTORS CORP.

Install the water pump to water pump outlet pipe nuts (1) to the studs (2) and tighten to 25 N.m (18 lb ft).
Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipe Replacement (LGH) .
Install the radiator outlet pipe. Refer to Radiator Outlet Hose Replacement (LR4, LM7, LQ4) , Radiator Outlet Hose Replacement (LU3) , Radiator Outlet Hose Replacement (LGH)

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.