Renault Scenic - Engines - Cutting Out On Idle - Page 2 - Renault Forums :: Independent Renault forum

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post #6 of 25 (permalink) Old 1st July 2007
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Here we go.

The Idle Air Control Valve is shown by the yellow arrow....

It's very easy to get to on my Lag 1,but I suspect the Scenic is a little more awkward as the engine is set back under the scuttle panel.

With the ignition off,unclip the wire connector and undo the two fixing screws.(mine were philips headed,but they could be torx screws on yours.

This is what the unit looks like when it's removed...

There is a plunger on the end which moves in and out to allow air to pass by it when the ECU senses the engine needs to idle.There is a tapered end on it which seals against the seat in the inlet manifold.Dirt and carbon deposits can build up here and cause the seal to leak.In some circumsatnces the plunger can stick,or the electric motor that works it can pack up,meaning the engine won't idle.

You can gently clean the taper and the seat with a piece of soft cloth,but make sure you don't drop anything through the hole into the inlet manifold.....

The seat is marked in green...

Re-fit the valve and see if it makes any difference!.Cleaning can sometimes help,and if not,you haven't lost anything.

I'd rather push my Alfa than drive a BMW....
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post #7 of 25 (permalink) Old 6th July 2007
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No more cutting out

Hi lagdti, I've sprayed some wd40 on the idle control valve on tuesday and the car aint attemptin 2 cut out anymore so thanx alot 4 the advise.

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post #8 of 25 (permalink) Old 6th July 2007
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hi lagtdi, would that be the same for a laguna 1, 2.0ltr 16v? is it fitted same place?, my car has just developed similar symptoms.
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post #9 of 25 (permalink) Old 6th August 2007
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mine too!

My Scenic RX4 wont idle at all, have to keep my foot on the throttle to keep it ticking over, if Im driving and dip the clutch & release the throttle the revs just drop straight back down to 0, dont even hang around the 750-100rpm mark! when I take my foot off the clutch the engine fires up straight away without much resistance, I have replaced the TDC sensor, sprayed carb cleaner down the throttle body , tested each injector (when I have managed to get it to idle) replaced all the coils , I think the only thing left to do is change the Idle valve... (all these repairs werent just done for this issue, these are just things that have been changed recently!) Is there anything else I should check before changing this valve???
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post #10 of 25 (permalink) Old 12th August 2007
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i cant my one off !!! only way i can see to do it is disconnect it from manfold is this wise? i will get new gasket but i just get enough pressure on my screw driver ! (megane scenic 99)
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cutting , engines , idle , renault , scenic

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