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If you take off the valve from the inlet manifold but keep the electrical connection, you can get someone to turn the ignition to II and the piston will move enough to allow you to give it a good clean with carb. cleaner.How fully move back the plunger of a monobloc IAC valve in order to clean it properly?
Is it true that when you turn the starting key in position II, the plunger moves back full open to help the engine to start?
Great post David
Especially after the grief I got for daring to suggest cleaning an IACV on .org
Not sure what this guys problem was -
http://forums.mg-rover.org/showthread.php?t=396265