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grinding noise from water pump

Old 24-May-2007, 04:36 PM
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grinding noise from water pump

For about the last week or so ive been hearing almost like a grinding or rough sound coming from the water pump, sprayed some wd40 on the belt..sound continues...on the pully from the pump there has always been a small chip...but never affected it. not sure if the belt needs replacing..maybe the pully or the whole pump...anyone come across this situation what do you think/suggest?
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Old 24-May-2007, 04:47 PM
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Change the pump!!!
Don't drive it until you do!!!
I had a Dodge I bought for $180, we thought the engine was shot because of the grinding. I was driving it to a storage place and the pully fell off the pump. The tow cost (costed, hahahha) more than the car!
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Old 24-May-2007, 06:32 PM
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how do you know its coming from the water pump? verify with a stethoscope.
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Old 24-May-2007, 07:01 PM
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because i can hear exactly where its coming from either the pully is making the noise or internally in the water pump...
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Old 24-May-2007, 08:07 PM
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noises bounce around.

Use a stethoscope. before doing your pump.
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Old 24-May-2007, 09:57 PM
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check the water pump pulley for any sort of play, if theres ANY replace it while you've got the timing belt off, would also be a good time to do the timing belt if its been a while.

When my water pump crapped out (shortly after the swap) it squealed really loud but only at idle or below 1500rpm, then a few days later i noticed a coolant stain on the timing belt cover right where the water pump is. My water pump pulley/shaft/bearing had a lot of play.
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Old 24-May-2007, 10:16 PM
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appreciate the info, will check for any play ..think im just going to change the pump and belt anyways....i mean i havent changed it since i put the engine in my civic..and god knows if it was ever changed in its lifetime
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