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Astra water pump replacement

Andra Pratama.
Email

Q

My 2006 AH Holden Astra CDX coupe is due for a timing belt replacement, but the Holden dealership advise that water pump won't be replaced. Does this sound right to you? I thought a failed water pump would have the same effect as the timing belt failure. The lady insisted that water pump does not need to be replaced.

Graham Smith
Ask Smithy

A

The water pump is usually changed because it’s found to be leaking when the mechanic strips the front cover off the engine to replace the belt. It’s not a regular service item as such, but done because it’s cheaper to do it at the same time the belt is done rather than leave it and have to replace it at a later date. The failure of a water pump is different to that of the belt, it’s usually due to leakage, which doesn’t result in catastrophic internal damage like a belt failure does.

Comments on this story

Displaying 3 of 3 comments

  • My water pump has failed and now the engine sounds like shaking a bag of spanners when it starts. I have not driven the car since this happened as I am unsure as to what harm this will do.  Can it be driven to the nearest garage and roughly, how much to change the water pump? I live in Sydney.

    Thanks

    Tony Hennessy of Sydney Posted on 03 February 2012 11:00am
  • The water pump is not listed as a service item but it is driven by the cam belt and failure of the water pump can cause damage to the cam belt so if there is any doubt it is a good idea to replace it, plus as Smithy advises it would be cheaper to do it at the same time as the belt because the same components would have to be removed to replace the water pump only.

    Holden Tech of Adelaide Posted on 15 December 2010 4:54pm
  • The water pump is not listed as a service item but it is driven by the cam belt and failure of the water pump can cause damage to the cam belt so if there is any doubt it is a good idea to replace it, plus as Smithy advises it would be cheaper to do it at the same time as the belt because the same components would have to be removed to replace the water pump only.

    Holden Tech of Adelaide Posted on 15 December 2010 9:20am

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