Question about 2000 GMC Jimmy

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I have a periodic squeeling noise comming from under the hood and i've noticed that the fan /pully system jumps or bucks on occasion - is that a sign that my water pump is going?

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  • krifkin129 Aug 06, 2008

    the belt was replaced a few weeks ago and i smell anifreeze...

  • petrolis Feb 08, 2009

    On my 2000 jimmy I have a squeel coming from the fan pulley, no matter how fast I am going it seems to keep up with the rpm's. I have checked to see if the squeel is coming from any other pulleys by spraying some lube at the bearings of the other pulleys. The squeel only stopped periodically when I sprayed the fan pulley. What could this be???

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No, a sign your water pump is going would be your water pump springing a leak through the weep hole, or your engine start to run hot, fast (but that can also be caused by a thermostat, a bad sensor, or blown head-gasket).

Likely-hood is your belt simply need to be replaced, take off the accessory belt and bend it backwards, if you see deep cracks or threads the belt is bad, if you don't then it could be your tensioner pulley going out.

Posted on Aug 05, 2008

  • Crasoum Aug 07, 2008

    Could be your belt tensioner or idler pulley going bad as well then.

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