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Help: Is Water Thermo Valve Supposed To Be Sucking Air?

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Old May 20, 2007 | 05:07 PM
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Help: Is Water Thermo Valve Supposed To Be Sucking Air?
Is the water thermo valve suppose to be leaking air out by the ****? You know the plastic valve on the cable side of the throttle body.
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Old May 20, 2007 | 07:22 PM
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The valve(plastic) on top of the thermowax?
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Old May 21, 2007 | 02:19 AM
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No, if air's leaking out (in actually) it's broken. This vac leak will cause problems...
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Old May 21, 2007 | 05:55 AM
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what kinda problems will this create? My cold start issue has been solve thanks to NZ mentioning the word BAC valve. I forgot to reconnect it when installing my TB!!

chris
Last edited by jgrts20; May 21, 2007 at 06:23 AM.
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Old May 21, 2007 | 06:53 AM
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Same problems as any other vac leak. Bad idle mostly.
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Old May 21, 2007 | 07:04 AM
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ok thanks!! Its leaking at the valve, I dont have an extra one so im gonna have to duck tape it or something or goop it.

Chris
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Old May 22, 2007 | 01:58 AM
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You don't need to mess with the thermovalve itself. Just remove the vac line and put a cap on the manifold nipple.
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Old Apr 2, 2014 | 09:17 PM
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I just purchased a new water thermo valve from mazda and hooked up the vacuum hoses and heard the valve sucking air. Does this mean the "NEW" OEM part is broken?
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Old Apr 2, 2014 | 10:32 PM
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there's a filter under the plastic end cap, you know, for a metered vacuum bypass, ie a vacuum leak that is normal. iirc when cold the vacuum is applied to the double throttle butterfly, warm it bypasses.
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