Author Topic: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics  (Read 26796 times)

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DrZux

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Rehash of Bens original and photos I took today.

If your revs are eratic then you may want to try this out, it worked for me.

First loosen the two jubilee clips to disconnect a small section of the air pipe from the throttle body.
Then disconnect the plug from the Idle Control Unit.(ICU looks like a small cylinder bolted to the side of throttle body)

When this is done remove the two bolts that holds it to throttle body. The bottom one is difficult to access with a normal Allen key so i used a screw driver with detachable bits for this. Clamp mole grips to the handle of screwdriver if they are too tight to unscrew by hand. BECAREFULL NOT TO DROP THE SCREWS THOUGH.



The unit is now detached. Now undo the two screws on the unit its self so it splits in two.





Now spray lots of carb and throttle cleaner into the open holes. P.S. WD40 will only oil it carb cleaner will actually clean it out. Fill it up with this spray and then cover all the holes with your fingers and give it a good shake about. Tip left over spray out and see all the black crap come out. Repeat this last step over and over until the inside looks like new.



Now reassemble by reversing this guide.




Offline Trigger

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #1 on: May 19, 2009, 21:05:41 PM »
Topic moved :)

DrZux

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #2 on: May 19, 2009, 21:07:18 PM »
Cheers Trig.

Offline Crawf

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #3 on: May 21, 2009, 17:16:48 PM »
just about to do this, i did this when i 1st brought my car and it does just the trick. car has been stalling when i get to round abouts and traffic lights again so just about to make the most of the weather and do this again. cheers for the quick refresh guide.

Offline steveE

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #4 on: September 28, 2011, 20:13:38 PM »
Hi all,
 I know that this topic has been quiet for awhile, but I am having problems with my Calibra and would like to give this a go and don't think it my question warrants a new topic.

I was just wondering if there is any kind of gasket or seal where the ICV connects to the throttle body or to itself? If so will I need to get replacements for re-assembly?

Thanks for any help.

DrZux

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #5 on: September 28, 2011, 20:57:40 PM »
Yes there is, I've cleaned mine loads and used the same gasket.

Offline sealeysonic

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #6 on: September 28, 2011, 21:04:08 PM »
Topic moved :)

I thought you had been abducted by aliens...?

barrachops

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #7 on: September 28, 2011, 21:33:45 PM »
I thought you had been abducted by aliens...?

That post was edited in 09 Seally.

Trig is no longer a member

Offline steveE

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #8 on: September 28, 2011, 22:12:13 PM »
Yeah sorry about bringing up an old topic.

Yes there is, I've cleaned mine loads and used the same gasket.

Nice one, thank you for the reply. Guess there is no need to worry then, heres hoping that it cures my problems!

Offline DanSE4

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #9 on: September 28, 2011, 22:18:57 PM »
I thought you had been abducted by aliens...?

FAIL!!!!!!!

LMFAO! ;D ;D ;D ;D ;D
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DrZux

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #10 on: September 29, 2011, 01:07:26 AM »
Yeah sorry about bringing up an old topic.
Not a problem, the guide is still relevant.

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #11 on: September 29, 2011, 10:29:40 AM »
is any kind of gasket or seal where the ICV connects to the throttle body or to itself? If so will I need to get replacements for re-assembly?

Yes there is a thin gasket between the two, and whether you need to replace it or not, probably depends on its condition when you remove it. I replaced mine, as it was broken when i did this.
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Offline Chris7B

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #12 on: February 14, 2012, 18:08:42 PM »
This sounds just like what has been wrong with my Calibra _ EMS light comes on sometimes at low revs and engine cuts out at lights etc. Will def give this a go in the next couple of days and feedback. Fingers crossed!

Offline ALZ1307

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #13 on: February 14, 2012, 18:27:14 PM »
Hi Chris, feel free to introduce self in the 'Newbies And Hellos' section, and get some Cally pics up  ;D
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Offline Chris7B

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Re: Guide To Cleaning 16v Ecotec ICV Valve Updated Now With Pics
« Reply #14 on: February 17, 2012, 17:44:46 PM »
Have managed to go through this procedure (although I broke the ?*$^&*&^%*&%$*^&  gasket - Doh! so will take great care in future). As predicted, found loads of black gunk in the ICU. Large can of carburretor cleaner (?4)  helped to dissolve a flush most of it out. Have taken motor for a spin - idle revs are much more enthusiastic and steady. Hopefully sorted. Many thanks for the post. My local garage is still using trial and error. :D