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• A bad pump may leak, fail to circulate coolant, or produce a grinding
sound
• Causes:
• rust in the cooling system
• lack of coolant
• overtightened belts
Visual Inspection
Pump shaft should not wiggle or leak
Visual Inspection
Watch for leakage from bleed holes
Removing a
Water Pump
Unbolt brackets and
components
air-conditioning
compressor
power steering pump
alternator
Remove pump
Scrape off old gasket or sealer material
Do not gouge the sealing surfaces
Installing a Water
Pump
• Fit pump onto the engine
• Start all bolts by hand
• Torque all fasteners to specifications
• Use sealer where specified
• Install the other components
Installing a
Water Pump
A. Gasket held in place by sealer
B. Sealer only
Water Pump
• This pump uses an O-ring seal instead of sealer or
gasket
Installation
Tightening water pump bolts
REFERENCE
• Duffy. E. J., (2004) Modern Automotive Technology (6 e.d.).
Goodheart-Willcox Co.
• Halderman. D. J., (2012) Automotive Technology: Principles, Diagnosis
and Service (4th e.d.). Pearson Education, Inc.,

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Water pump service