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Cleaning Your Inlet Control Valve
Deckchair5
09-11-2006
CLEANING THE INLET CONTROL VALVE/ THROTTLE/ IDLE CONTROL/ BUTTERFLY VALVE<br />
<br />
SYMPTOMS<br />
Unsteady and too low idle rpm cycling between 700 to 500rpm. No power at tickover as engine is struggling and it's easy to stall. You put the aircon on just to bump up the tickover a bit. Tricky
Old 07-01-2012   #60
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Re: Cleaning Your Inlet Control Valve

Quote Originally Posted by Davren View Post
The JTD engine doesn't have an inlet control valve.

sorry my mistake
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Old 23-01-2012   #61
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Re: Cleaning Your Inlet Control Valve

The examnier read 'Throttle Body' for my fault and my car doesn't start first time and it lost power when going at 70mph. Plus Engine fault lit for a week now.

It doesn't stall though ot have rev issue. Is cleaning it as above unlikey to help. Garage have said gven symtoms and examiner I need a new throttle body.

Any advice? Thanks. Also I notice above say harder to get to on 1.4, where is it anyone and how difficult to reach?

Thanks
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Old 02-03-2012   #62
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Re: Cleaning Your Inlet Control Valve

Clean the throttle body mate. Cleaning the valve will most likely not solve this issue.

Next time you have in issue not related to the inlet control valve, please start a new thread within the Stilo section. Unfortunately not many people are subscribed to this guide.

If you still have this problem, we can continue the conversation there.

Cheers.
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Old 21-05-2012   #63
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Re: Cleaning Your Inlet Control Valve

I have a W reg Bravo that is stalling at junctions/roundabouts. Is this process the same?
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Old 21-05-2012   #64
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Re: Cleaning Your Inlet Control Valve

It should be, if it's petrol. Although there may be several other factors that cause the problems.
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Old 31-08-2013   #65
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Re: Cleaning Your Inlet Control Valve

Old thread I know, but interested to know if this always works fine for everyone?

Since doing this, my car hasn't been right (hanging revs, lumpy on the overrun). I've done relearns, even had the throttle body changed, and still can't cure the problem.

Is it possible that the car isn't relearning correctly?

The guide was excellent btw, and steadied up my lumpy idle
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Old 22-11-2016   #66
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Re: Cleaning Your Inlet Control Valve

Thankyou that was easy and a great explanation of the process,
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Old 15-02-2018   #67
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Re: Cleaning Your Inlet Control Valve

Thankyou for this post! I have a '04 Stilo 1.4 that has been stalling and idling funny since i started driving it in April '17. Wasn't only til the other day that when checking another fault, via a OBD 2 reader via my phone this issue came up. I've googled and googled and no luck, til i found this post. Will be trying first thing tomorrow, as well as some other servicing i plan to do. Again, Thankyou! (P.S love to see things in pictures!)
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Old 15-02-2018   #68
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Talking Re: Cleaning Your Inlet Control Valve

Hello again. I looked at the car today and sorted the problem!
Car is idling perfect and only toke me under 1hr to do.

In my case, the valve was under the ECU. Easy to get to and worth the time
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Old 26-03-2018   #69
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Re: Cleaning Your Inlet Control Valve

thanks a lot!
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Old 02-04-2018   #70
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Re: Cleaning Your Inlet Control Valve

Quote Originally Posted by Davren View Post
The JTD engine doesn't have an inlet control valve.
YES IT HAS.
Only the function is somewhat different from a petrol powered engine.
The flap in the JTD inlet helps to shut of the engine by stopping air comming in.
It can and will be black and dirty around it though, so a clean is always a good thing!
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Old 02-04-2018   #71
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Re: Cleaning Your Inlet Control Valve

For cleaning the inlet valve and surroundings, best use carburetor(!) cleaning spray over WD-40, which is a Water Dispersant...
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Last edited by Peter Pick-Up; 02-04-2018 at 09:30.
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Old 02-04-2018   #72
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Re: Cleaning Your Inlet Control Valve

Quote Originally Posted by Peter Pick-Up View Post
YES IT HAS.
Only the function is somewhat different from a petrol powered engine.
The flap in the JTD inlet helps to shut of the engine by stopping air comming in.
It can and will be black and dirty around it though, so a clean is always a good thing!
So it's an idle shutoff valve, also known as an anti-shudder valve.... not an inlet control valve.
.
Likes Peter Pick-Up liked this post
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Old 02-04-2018   #73
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Re: Cleaning Your Inlet Control Valve

Quote Originally Posted by Davren View Post
So it's an idle shutoff valve, also known as an anti-shudder valve.... not an inlet control valve.
.
But dirt and sooth will be build up around it, and affect drivability...
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Old 4 Weeks Ago   #74
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Re: Cleaning Your Inlet Control Valve

Clear concise advice Deckchair5, worked perfectly for me!
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