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Idle air control slide 140-160 1972

posted by  Chris Mullet on  Thu Sep 16 04:54 CST 2004
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

Your 1972 Air Bypass Valve is controlled by the coolant water temperature, so if your thermosadt is working properly and the engine is getting up to the proper operating temperature, then it should be closing (unless the valve itself is faulty)- and the ambient air temperature should have little or no influence on the valve operation.

Maybe your thermostadt is too cold ??

Also, you could remove the valve, put the sensor part of it in a pan of water, and heat it up on the stove. Monitor the water temp with a cooking thermometer and watch to see at exactly what temp the valve closes.






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