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RE: Name that I-5 noise!
That noise is the water pump. When I had my timing belt and water pump
replaced to, i began to get that kind of noise coming off and on. I asked
the mechanic and he said it was normal for the newer water pups to do it. I
don't know why it does it but, this is what he told me. I just took his
word for it, hasn't seemed to cause any other problem. With my car, if you
give it a little gas, the noise goes away. Does it still exist under normal
driving conditions?
Mike Robinson
88 90q
> -----Original Message-----
> From: quattro2@ix.netcom.com [SMTP:quattro2@ix.netcom.com]
> Sent: Monday, July 26, 1999 5:42 PM
> To: quattro@audifans.com
> Subject: Name that I-5 noise!
>
> My 87 4KCSQ seems to be warbling, I guess you could call it that. The
> noise is coming from the
> front of the motor and seems loudest around just above idle. It is
> accompanied by a very slight
> whistling sound. The noise really drops off above/below @ 1000 rpm.
>
> I have VERY recently changed the following (although it made the noise
> before I did)
>
> timing belt
> water pump
> tensioner (idler) pulley
> cam and crank seals
> oil pump gasket
>
> I followed the Bentley and torqued every thing to spec, the timing belt
> can be twisted 90
> degrees per the manual etc....
>
> It sounds to me like its coming from the water pump or the thermostat
> housing. Could it be air
> in the cooling system? The car runs fine and does not overheat.
>
> Any thoughts??
>
> TIA
>
>
> Bill