idle control valve on 300GE. Does this item require servicing/cleaning?

2 replies [Last post]
consur
consur's picture
Offline
Joined: 03.05.2010
Location: Cambs
GWOA Groups: Members

I can't find any recommendation for cleaning the idle control valve.  The vehicle has done 160,000 miles   Does anyone do this or know anything about this subject.  I had a 380SL which recently developed problems at 90,000 which were cured by cleaning the ICV.  The idle is not quite what it used to be - could be multiple things but I wondered about the ICV.

Arnie
Arnie's picture
Offline
Joined: 12.04.2004
Location: London
GWOA Groups: Committee, Members
Re: idle control valve on 300GE. Does this item require ...

Yes, remove it and clean it internally with some petrol or cab-cleaner; then add a drop of engine oil to the rotating part inside the valve, so that the oil also reaches the bearing. If you hold the valve it in your hand and rotate your hand rapidly back and forth in the same axis as the valve's internal rotor, you should here it move freely from end to end from its inertia.. With the valve cleaned, your idle-speed should be more stable and you engine shouldn't die when the vehicle comes to a stop eg at the lights.

 

consur
consur's picture
Offline
Joined: 03.05.2010
Location: Cambs
GWOA Groups: Members
Re: idle control valve on 300GE. Does this item require ...

Thanks Arnie.