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Thread: Water Pump Location?

  1. #1
    Join Date
    Aug 2008
    Location
    burnsville, minnesota
    Posts
    28

    Default Water Pump Location?

    I heard a very weird intermittent tapping sound - just started today. I popped the hood and got some light on it and I could actually see the serpentine belt tensioner (in the middle) moving in and out. This tensioner is the one with the bolt in it so you can use that tool from IPDUSA to release the tension on the timing belt. Needless to say, I shut down the car immediately. I took a short video of it with my phone this morning. The sound the belt tensioner was making was horrible. Anyways, I'm going to do a serpentine belt, water pump and replace the tensioners. I can't find the water pump though. I made a diagram of the belt - at the top it goes around the power steering pump, then down to the AC, up and around a tensioner, down around the crank pulley, up to that middle tensioner and then to the power steering pump. Where's the water pump? The Aisin water pump has a pulley on it, but not with a bolt in the middle. Any help would be appreciated. I've been watching every video I could find on YouTube, but none show my engine. Thanks. 2001 XC70 with 190000 miles.

  2. #2
    Join Date
    Feb 2010
    Location
    Virginia Beach
    Posts
    3,755

    Default

    Serpentine belt - multi-ribbed. Drives PS pump, alternator, AC compressor.

    Timing belt - toothed. Drives intake cam, exhaust cam, water pump.

    I think you're confused on what is a serpentine belt, and what is a timing belt.

    They are two separate and distinct things...
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  3. #3
    Join Date
    Aug 2008
    Location
    burnsville, minnesota
    Posts
    28

    Default

    Yes. Sorry. I meant the serpentine belt.

  4. #4
    Join Date
    Aug 2008
    Location
    burnsville, minnesota
    Posts
    28

    Default

    Yes, I confused the timing belt and the serpentine belt (he said, hanging his head). Water pump gets changed with the timing belt, not the serpentine belt. No wonder I couldn't find it.

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