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Old 14-06-2018, 08:15 PM   #1
bidderman1969
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Best EGR valve cleaner?

So what is the best? Preferably ones you have tried and tested chaps
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Old 14-06-2018, 09:05 PM   #2
SteveTDCi
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I used carb cleaner on mine today. Wear decent gloves though .... my hands a now black.
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Old 14-06-2018, 09:07 PM   #3
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Quote:
Originally Posted by SteveTDCi View Post
I used carb cleaner on mine today. Wear decent gloves though .... my hands a now black.


Looking at the Wynn’s one, where you squirt it into the air intake (after the MAF sensor
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Old 14-06-2018, 09:30 PM   #4
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the only way to clean it is remove it
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Old 14-06-2018, 09:34 PM   #5
LeeH
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Quote:
Originally Posted by 11alan111 View Post
the only way to clean it is remove it


And then blank it or map it out.


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Old 14-06-2018, 10:05 PM   #6
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None of them sprays really work, baked on carbon needs entire manifold soaking to clean it out properly.
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Old 14-06-2018, 10:10 PM   #7
SteveTDCi
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yes it needs to soak, i sprayed it cleaned, sprayed, cleaned ... i used the wynns carb cleaner. It was easy to remove on the mondeo and to be honest it was pretty clean given the age and mileage so i'm sure its been replaced at some point.
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Old 14-06-2018, 10:18 PM   #8
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I do believe tho that even if you get it really clean they come up quite quickly anyhow, so I know they won’t get them sparkling clean
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Old 14-06-2018, 10:29 PM   #9
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As said, the only way to clean it, is remove it.
If possible I mark the alignment of the housings then separate the electronics from the mechanical parts and soak the mechanical parts in DAE fuel system cleaner (other fuel system cleaners are available) and once softened use a stiff brush, soft scraper to remove the grot. Then soak again and clean until clean and the valve slides easily from one side to the other.
If I cannot remove the electronics it is very important to not get any cleaning solvents on any circuitry or coils etc.
Also do not force the valve from one side to the other because that can strip/break the gears or cam assembly (Driven by the electronics) if it is of that type. Use a diagnostic scanner to open and close the valve to check for correct operation.
If it a diesel it is worth remembering that whatever oily grot is in the EGR will also be coating the inside of the inlet manifold, map sensor, swirl flaps etc and it is often worth checking and if necessary removing and cleaning or replacing these items at the same time.
I have seen inlet manifolds with 2 and 3 inch ports reduced to an inch or less by thick oily deposits.
Once properly cleaned the improvement in performance can be a revelation.
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Old 14-06-2018, 10:57 PM   #10
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remove to clean or replace.

if you do remove to clean dont spray cleaner directly into the chambers as you may end up getting fluid into electronic circuitry. Better to spray cleaner onto your cloth then wipe awayt the crud.

i did mine the other day ...

old and new side by side. the EGR had been cleaned in October 2015. this time i replaced


Last edited by enc; 14-06-2018 at 11:03 PM.
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