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Car Forum / Mercedes-Benz Cars / September 2007What is function of black plastic tubes connected to idle air control valve on 560?
Black tubes about an inch in diameter on inside of each valve cover. They don't seem to connect to anything. They are connected to manifold vacuum. #266 is attached to 262 here: http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=107048&M=117%2E967&GA=722%2E313&L=76 5%2E707&CT=M&cat=14M&SID=14&SGR=030&SGN=02 > Black tubes about an inch in diameter on inside of each valve cover. They > don't seem to connect to anything. Ooops 242, not 262. > Black tubes about an inch in diameter on inside of each valve cover. They > don't seem to connect to anything. > Black tubes about an inch in diameter on inside of each valve cover. They > don't seem to connect to anything. Byblown exhaust gas recycling and oil damp combustion and vacuum production inside the engine. Part of the catalytic converter system to avoid any exhaust bypassing the converter. It is connected to intake manifold after air filter. The negative pressure over the filter inside engine is proportional to to air flow into the engine a fact used for idling control. -- Roland Franzius >> Black tubes about an inch in diameter on inside of each valve cover. >> They don't seem to connect to anything. [quoted text clipped - 5 lines] > engine is proportional to to air flow into the engine a fact used for > idling control. Well, THAT certainly clears it up! clear to me.... cheers >>> Black tubes about an inch in diameter on inside of each valve cover. >>> They don't seem to connect to anything. [quoted text clipped - 7 lines] > >Well, THAT certainly clears it up! Yep! Clear to me too! Them thar leetle tubes iz whut lets the bad air out! mcbrue ventilatingly under the bridge in the trailer down by the river 06 kudzu burner |
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