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milkhunter
Joined: Mon Jul 26, 2010 9:55 am Posts: 27 Location: Darwin
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 Posted: Wed Sep 01, 2010 4:31 am |
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Hi guys.
Car is a 98 sierra.
I have this whining noise coming from the engine. I thought it might have been the air con compressor, because i just had a mate regas it before we went to kakadu last weekend. It was the only thing that has been touched recently.
So i took the belt that drives the compressor off and fired it up. Same result  .
Then i took off the fan belt and gave it another shot, this time no noise.
Problem now is that i don't know if it is the water pump or alternator. Tried spinning each of them by hand but i can't really tell.
Has anyone had this problem? or is there something else i can do to rule out one or the other?
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MacDaddy

az supporter
Joined: Thu Mar 26, 2009 10:30 pm Posts: 10453 Location: Perth, Australia
Vehicle: Jeep
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 Posted: Wed Sep 01, 2010 6:08 am |
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milkhunter wrote: Hi guys. Car is a 98 sierra. I have this whining noise coming from the engine. I thought it might have been the air con compressor, because i just had a mate regas it before we went to kakadu last weekend. It was the only thing that has been touched recently. So i took the belt that drives the compressor off and fired it up. Same result  . Then i took off the fan belt and gave it another shot, this time no noise. Problem now is that i don't know if it is the water pump or alternator. Tried spinning each of them by hand but i can't really tell. Has anyone had this problem? or is there something else i can do to rule out one or the other?
If its a bit like a squealing whine, then i would say water pump... try spraying some CRC or WD40 around the centre of the fan and Alt to see if that stops the noise, do one first, then try the other... but i would think it is water pump... 
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lump_a_charcoal

az supporter
Joined: Wed Feb 28, 2007 10:30 pm Posts: 4454 Location: Botany, NSW
Vehicle: MY2019 Jimny
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 Posted: Wed Sep 01, 2010 8:16 am |
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Have you checked to see if someone's wife is stuck under your bonnet?
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Llewellyn92
Joined: Tue May 04, 2010 7:28 am Posts: 263 Location: Moruya NSW
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 Posted: Wed Sep 01, 2010 8:25 am |
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sierrajim
Joined: Mon Jan 25, 2010 10:30 pm Posts: 345 Location: Hugging Royce behind the shelter shed
Vehicle: Suzuki Sierra
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 Posted: Wed Sep 01, 2010 12:45 pm |
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Does it have power steering? if it does could be low on fluid.
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Dale
Joined: Thu Jun 17, 2010 1:42 am Posts: 80 Location: Brisbane
Vehicle: Sierra
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 Posted: Wed Sep 01, 2010 2:03 pm |
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Have you checked them for play? Not just spinning them?
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milkhunter
Joined: Mon Jul 26, 2010 9:55 am Posts: 27 Location: Darwin
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 Posted: Thu Sep 02, 2010 5:47 am |
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Thanks for the relies guys. A mate came around today (a mechanic) and put the stethescope (spelling) on it and its deffinately the water pump.
While im in there i might as well do the alternator upgrade as well.
Now i just have to find them, will be checking the wreckers tommorrow.
Thanks again
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Jccck
Joined: Sun Apr 11, 2010 11:30 pm Posts: 706
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 Posted: Thu Sep 02, 2010 5:51 am |
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milkhunter wrote: Thanks for the relies guys. A mate came around today (a mechanic) and put the stethescope (spelling) on it and its deffinately the water pump. While im in there i might as well do the alternator upgrade as well.  Now i just have to find them, will be checking the wreckers tommorrow. Thanks again
Stethewhateverscope hey
I saw a mechanic put a long flatblade screwdriver onto areas of the engine once, with the handle to his ear
It seemed to work, and was amusing to see
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lump_a_charcoal

az supporter
Joined: Wed Feb 28, 2007 10:30 pm Posts: 4454 Location: Botany, NSW
Vehicle: MY2019 Jimny
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 Posted: Thu Sep 02, 2010 5:53 am |
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until it hits a fan blade...
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Jccck
Joined: Sun Apr 11, 2010 11:30 pm Posts: 706
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 Posted: Thu Sep 02, 2010 5:54 am |
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lump_a_charcoal wrote: until it hits a fan blade...
Like i said, amusing to see lol
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