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Old 07-06-2009, 06:11 PM   #1
Zaffir
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Member#: 67874
Join Date: Aug 2004
Location: might as well be Ann Arbor, Mi
Vehicle:
2003 WRX, Wagon!
WRB

Default Unable to Locate Coolant Leak

The other day I had white smoke coming out from under my hood. It smelled sweet: obviously coolant. It had sprayed all over the front of my timing belt cover and there were small drops of coolant on the top of the accessory belt cover and alternator.

The next morning I went out and let the car warm up. Sure enough, drops of coolant on the top of the engine and coolant was starting to pool on the top edge of the timing belt cover. Even a good steady drip under the car. But I couldn't find the leak. No pinhole, no cracks in the radiator or any hoses, nothing.

Armed with more info from NASIOC - for coolant to be getting where it is the issue is probably my radiator - I tried to find the issue again today. Now all I have is some pooling on top of the timing belt cover just slightly to the passenger side of the crank pulley. Nothing anywhere else.

I'm having a shop look at it tomorrow, but any ideas in the meantime?
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Old 07-06-2009, 07:10 PM   #2
Spenk
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Join Date: Jun 2001
Location: Arizona Bay
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2000 Miata LS
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Wipe off coolant.

From a cold start, pop the hood and as the car comes up to temp you should be able to see where it's coming from.
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Old 07-06-2009, 07:27 PM   #3
munkis
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or pressure test the cooling system, you can buy a coolant pressure tester from the auto parts store.

then you can look for you leak while pressurizing.
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