Isuzu Ascender Water Pump Replacement at your home or office.

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received a Water Pump Replacement.
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$372.20 - $527.91

Price range for all vehicles


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Average rating from customers who
received a Water Pump Replacement.
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Water Pump Replacement Estimate for Isuzu Ascender

Isuzu Ascender Water Pump Replacement costs $438 on average.

CarServiceEstimateShop/Dealer Price
2005 Isuzu AscenderV8-5.3LService typeWater Pump ReplacementEstimate$732.85Shop/Dealer Price$883.88 - $1246.83
2006 Isuzu AscenderV8-5.3LService typeWater Pump ReplacementEstimate$732.85Shop/Dealer Price$884.08 - $1247.18
2003 Isuzu AscenderV8-5.3LService typeWater Pump ReplacementEstimate$749.85Shop/Dealer Price$898.63 - $1259.90
2006 Isuzu AscenderL6-4.2LService typeWater Pump ReplacementEstimate$519.43Shop/Dealer Price$626.11 - $854.88
2004 Isuzu AscenderL6-4.2LService typeWater Pump ReplacementEstimate$519.43Shop/Dealer Price$617.40 - $839.64
2004 Isuzu AscenderV8-5.3LService typeWater Pump ReplacementEstimate$749.85Shop/Dealer Price$895.66 - $1254.71
2008 Isuzu AscenderL6-4.2LService typeWater Pump ReplacementEstimate$534.43Shop/Dealer Price$631.76 - $853.52
2007 Isuzu AscenderL6-4.2LService typeWater Pump ReplacementEstimate$519.43Shop/Dealer Price$619.05 - $842.53
Show example Isuzu Ascender Water Pump Replacement prices

Water Pump Replacement Service

What is a water pump and how does it work?

The water pump is a belt or chain-driven engine accessory bolted to the engine above the crankshaft pulley. The pump housing has an impeller that circulates engine coolant through the cooling system passageways in the engine block and cylinder head, on to the radiator, where the coolant temperature is reduced. . The lower temperature coolant then flows back to the water inlet on the engine and the water pump continues the cycle.

When to consider replacing the water pump:

  • Coolant leaks or overheating. The water pump impeller shaft is supported by a bearing. Eventually, the bearing or seal can wear and leak or damage the impeller. Many water pumps have weep holes near the pump bearing. If you see significant leakage from that weep hole, it is time to replace the pump.
  • Bearing roughness or noise. If the water pump shaft does not turn smoothly or the pump is noisy, the bearing is excessively worn. Pump replacement will be necessary.
  • Timing belt replacement. In engines where the water pump is driven by the timing belt, it is a good idea to replace the water pump at the same time the timing belt is replaced. The extensive work explains why it is always recommended to replace the water pump whenever the mechanic already has these components removed for regularly scheduled timing belt replacement.

How do mechanics replace the water pump?

  • The water pump is usually bolted to the front of the engine. The replacement procedure will vary depending on whether the pump is driven by the timing belt, the serpentine belt, or chain.
  • On a cold engine, the engine coolant is drained to a level below the water pump.
  • Components that require removing to access the water pump are removed, including the belt or chain that directly drive the pump.
  • The bolts holding the pump to the engine are removed and the pump is pulled out.
  • The gasket surface must be cleaned and the pump mounting surface inspected. A new gasket, rubber seal, or RTV sealant, as required, is installed and then the new pump. The bolts are torqued in sequence using a calibrated inch pound torque wrench.
  • For applications where the water pump is driven by the timing belt, the timing belt must be removed. Typically, this requires removal of the crankshaft pulley, timing belt covers, and timing belt tensioner. Once the new pump is installed, new coolant is added back while bleeding the cooling system of any air. The engine is then run and brought to normal operating temperature to check for leaks and ensure normal operating temperature.

Is it safe to drive with a water pump problem?

No. Should the water pump only leak a little bit, you can drive the car. However, a small leak could suddenly enlarge or the pump bearing might unexpectedly seize. Either circumstance would likely cause engine overheating. If a defective water pump causes the overheating, it is not safe to drive because of the damage to the engine.

When replacing the water pump keep in mind:

  • It is best to install a new cooling system thermostat when you install a new water pump, especially if the thermostat is old or original.
  • Completely flushing the cooling system is a good idea when you replace the water pump. Flushing can be done before or after pump replacement.
  • The rest of the cooling system should be inspected too — particularly rubber hoses, which have a limited lifetime.

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Meet some of our expert Isuzu mechanics

Real customer reviews from Isuzu owners like you.

Excellent Rating


YourMechanic Isuzu Ascender Service

Average Rating

5/5

Number of Reviews

23

Rating Summary
22
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Gregory

30 years of experience
315 reviews
Gregory
30 years of experience
Isuzu Ascender - Water Pump - Littleton, Colorado
Gregory did a great job! professional and knowledgeable! Would definitely recommend him to people I know.

Patrick

32 years of experience
1179 reviews
Patrick
32 years of experience
Isuzu Ascender - Water Pump Replacement - Pflugerville, Texas
Patrick is a godsend. His patience with my questions regarding my car was greatly appreciated. Additionally, his service was both quick and thorough. I felt very comfortable with him working on my car and will definitely be looking to him for my future auto repair needs!

Henry

33 years of experience
153 reviews
Henry
33 years of experience
Isuzu Ascender - Engine is misfiring - Woodbury, New Jersey
Ok

Thomas

29 years of experience
34 reviews
Thomas
29 years of experience
Isuzu Ascender - Oil Pressure Sensor - Albuquerque, New Mexico
Thomas was great, he arrived on time, answered my questions and the job he performed was professional.. I would highly recommend him to others.

Excellent Rating


YourMechanic Isuzu Ascender Service

Average Rating

5/5

Number of Reviews

23

Rating Summary
22
1
0
0
0
22
1
0
0
0
Number of Isuzu Ascender services completed
253+
services done by our mechanics
TOTAL NUMBER OF EXPERT Isuzu MECHANICS
200+
experts on our platform

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