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Old 11-03-2005, 03:02 PM   #1
Scooby Newbie
Member#: 99854
Join Date: Nov 2005
Default whining noise and overheating, help please!

I have a 93 subaru impreza with 120,000 miles, was driving on a stretch of highway yesterday and suddeningly i heard a continous high-pitched whining noise, i kept driving for 1 mile or so, then temp needle rised very quickly from midline to top in about 10 seconds, i immediately pulled over and shut down the engine. After a bit cooldown, i took off radiator cap and see full level of coolant. I restarted and the car idles with temp needle in mid-line. But if i rev it to maybe 2000 RPM for 40 seconds, the needle would rapidly rise again. All the while there is that continous whining from the engine.

The belt seems to be tight, there is no leak and all the coolant is still there. There is no prior warning before this sudden onset of whining noise. Is my water pump shot? any body has experience with this whining noise typical of this water pump not working? but why is that when i idle the temp is ok and only overheats when i rev it up?

thanks for your help guys
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Old 11-04-2005, 11:05 PM   #2
Scooby Specialist
Member#: 32846
Join Date: Feb 2003
Chapter/Region: MAIC
Location: Elkton, VA
1998 Impreza L-SOLD
Arcadia Green

Default water pump whine

Sounds like you're on the right track. I'd say its your water pump bearings. You'll have to remove the timing belt to swap it out.

Is the whining coming from the front driver's side of the engine?

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Old 11-07-2005, 05:16 PM   #3
Scooby Newbie
Member#: 80500
Join Date: Jan 2005
Location: California
2002 2.5L WRX
Blaze Yellow


He's right. Money's on the water pump.
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Old 11-07-2005, 09:35 PM   #4
Scooby Specialist
Member#: 11808
Join Date: Oct 2001
Location: Cape Coral,FL

Get it checked ASAP because if the waterpump locks up it can take the timing belt out and that's is many dollars to fix the engine.
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