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"engine Judder" Around 1800 Rpm


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#16 FOCA

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Posted 22 April 2014 - 05:51 PM

Hi, to be honest I've never tried cleaning the EGR valve. I've seen the wynns EGR cleaner spray where you spray into the induction pipe after the air filter. But not sure how effective it is.


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EGR cleaner spray is of limited use and so is cleaning just the EGR valve (neither is terraclean or any kind of fuel additive or "super duper" fuel because it goes into the fuel system/ injectors so cannot clean the inlet/ manifold)- the entire EGR valve and inlet manifold really has to come off and be cleaned properly because the inside of these things gets covered in carbon deposits/ gunge (the oil from the breather mixes with the carbon from the EGR forming an oily "gunge" that eventually chokes the inlet) from an un-blocked EGR valve (one that has not been deleted or has a solid EGR blanking plate fitted) 



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#17 Randallsfocus

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Posted 22 April 2014 - 06:22 PM

If I'm blanking the EGR valve, would I get away with just removing valve to clean? Before I fit the plate


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#18 painterman

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Posted 22 April 2014 - 07:48 PM

Thats what im thinking , just taking egr valve off and cleaning it rather than blanking it off , surely thats gotta be an option ???

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#19 FOCA

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Posted 22 April 2014 - 08:35 PM

Thats what im thinking , just taking egr valve off and cleaning it rather than blanking it off , surely thats gotta be an option ???

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Yes, its an option, another option is to do nothing

 

The EGR valve injects dirty, burnt gasses into the inlet, this goes all over the  inside of inlet manifold, if the EGR is left unblanked, this will continue to happen,  so whatever you clean, will get dirty again, also, there is little point in just cleaning the EGR valve housing without cleaning the inside of the inlet manifold (that tends to be a more serious problem than the EGR housing)  

 

Once a solid EGR blanking plate is fitted the inlet will not get any dirtier

 

Of course, its not just the fact that the EGR dirties the inlet , its the fact that the engine is ingesting the burnt exhaust gasses instead of clean air, this is what causes the "hesitation" "flat spots" and lag etc, cleaning the EGR valve will not change that - it needs to have a solid plate fitted to "fix" this  

 

If i was lazy and could not be bothered taking the inlet manifold to clean (eg- do it right) i would just stick a solid EGR blanking plate  on without cleaning the EGR valve     



#20 painterman

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Posted 22 April 2014 - 08:57 PM

Decision made , gonna get a blanking plate and go for it

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#21 painterman

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Posted 23 April 2014 - 05:55 PM

Right im confused , some blanking plates have got holes in , non holes ones are for motorised egr valves , some are for non motorised , which do I need for my 56 reg 1.8tdci , help needed plz

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#22 painterman

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Posted 24 April 2014 - 02:45 PM

Anyone ? :-)

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#23 zeglover

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Posted 24 April 2014 - 04:52 PM

When I put mine in I fitted a solid plate I think mine is motorised as there is an electrical plug on on the valve. I think there is a sensor which measures the flow through the valve and will put elm light on. As it has with my focus not is stopped all problems I ha with mine. I can cope with the light on and check for codes using my phone and an Bluetooth adaptor.

The plates with the holes in are to stop this from happening but what is the point as it still lets !Removed! through


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#24 Randallsfocus

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Posted 24 April 2014 - 04:56 PM

I've ordered a solid one. Will post the results once it's fitted


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#25 painterman

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Posted 24 April 2014 - 05:31 PM

Thanks for the replies chaps .

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#26 Randallsfocus

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Posted 26 May 2014 - 09:49 PM

Hi, just an update. Finally fitted my EGR blanking plate, was really straight forward. Took it for a drive after and was all good. I did have the engine light come once, so cleared it.



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