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Old 12-25-2011, 02:25 PM   #4
san rensho
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
Water pump, maybe. Remove the engine panel behind the seats. Start the engine and listen for where the sound is coming from. If you can identify it, there you go. Use a stethoscope or a piece of tubing at every component to narrow down where the sound is coming from. If you can't identify the source, take belt off and run the motor briefly. If the sound goes away, its something driven by the belt. Grab the water pump pulley and push it back and forth. If there is any noticeable play, or leakage, its bad.
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Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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