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#4640479 - 01/19/18 09:00 PM Cleaning EGR and PCV Valve?
maverickfhs Offline


Registered: 12/28/16
Posts: 1984
Loc: VA
So wanted to ask a question about cleaning EGR valve and/or PCV valve for my 2006 Civic EX with AT and 198K.

Question is, should I clean EGR and/or PCV valves? Just as a maintenance item.

I don't have any CEL or anything on the dash or wait until something shows up and then clean it? Thank you thumbsup
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2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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#4640481 - 01/19/18 09:07 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
I use a little Berryman's B-12 spray down my PCV occasionally. (every 15-20K or so?)
(from the "top down" - - On the F150 4.6, removing it destroys it)

I think it is the original one (154,00 miles)
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#4640482 - 01/19/18 09:07 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Cleaning the EGR is a LOT more involved and not really an "easy" clean & lube item
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#4640483 - 01/19/18 09:10 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2740
Loc: Wet side WA
Why would you clean it? You can likely get a new one for $4 to $8 dollars that will last you 30K or more miles and not be maybe fixed?


Edited by JohnnyJohnson (01/19/18 09:12 PM)
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#4640490 - 01/19/18 09:17 PM Re: Cleaning EGR and PCV Valve? [Re: Linctex]
maverickfhs Offline


Registered: 12/28/16
Posts: 1984
Loc: VA
Originally Posted By: Linctex
I use a little Berryman's B-12 spray down my PCV occasionally. (every 15-20K or so?)
(from the "top down" - - On the F150 4.6, removing it destroys it)

I think it is the original one (154,00 miles)


So you just remove the rubber hose and spray it from top of the valve and will drip inside the engine, would it have any impact?
_________________________
2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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#4640556 - 01/19/18 11:36 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
das_peikko Offline


Registered: 01/01/18
Posts: 505
Loc: San Antonio, TX
I put the PCV valve in a jar of mineral spirits and shake it up.

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#4640570 - 01/20/18 12:07 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
thrace Offline


Registered: 08/31/02
Posts: 407
Loc: USA
In some Hondas, cleaning EGR passages is more important than cleaning EGR valve. In some Honda V6 engines, cleaning EGR passages is a good maintenance item. Your mileage may vary. At somewhere above 100 thousand miles can prevent incorrect EGR flow problems.

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#4640625 - 01/20/18 04:39 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
Olas Offline


Registered: 12/11/13
Posts: 3933
Loc: Manchester, England
Block off EGR and vent PVC directly into the exhaust stream with a moroso extractor kit
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#4640708 - 01/20/18 08:46 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
Gebo Offline


Registered: 09/18/02
Posts: 2091
Loc: VA
I'd just buy a PCV. Very cheap.

I'd clean the EGR. Very expensive. Scotty Kilmer just had a YouTUbe on that exact subject.
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#4640710 - 01/20/18 08:48 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
spackard Offline


Registered: 03/24/11
Posts: 1714
Loc: CA
+1 on the EGR passage cleaning.
I've had a clean EGR valve but a clogged passage. Seems downstream of the valve, closer to the intake, black, oily stuff condenses out of the exhaust stream and starts reducing the diameter of the passage.

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#4640820 - 01/20/18 10:17 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
JTK Offline


Registered: 08/14/03
Posts: 10571
Loc: Buffalo, NY
I've cleaned EGR plumbing on engines prone to EGR passage plugging, by using O2 sensor and catalytic converter safe intake/carb cleaner and spraying it in there with the EGR valve removed and the vehicle idling. Smoke billows out the exhaust, but it gets the job done. Same with the vac side of PCV systems.
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#4640856 - 01/20/18 10:54 AM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
SatinSilver Offline


Registered: 01/24/08
Posts: 10159
Loc: OH
Get a new oem pcv valve for around $12 or so. www.collegehillshondaparts.com . Usually the internal spring breaks around the 60k mark. Hopefully the car doesn't still have the original one in there.

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#4641056 - 01/20/18 02:21 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
maverickfhs Offline


Registered: 12/28/16
Posts: 1984
Loc: VA
I actually cleaned both of them as a preventative, let's see if there are any ill effects of it.
_________________________
2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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#4641127 - 01/20/18 04:12 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
Lubener Offline


Registered: 01/22/11
Posts: 2576
Loc: N.Ohio
You likely accomplished nothing. Cleaning a five dollar part and you could have easily checked for proper EGR flow without taking anything apart.


Edited by Lubener (01/20/18 04:14 PM)
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#4641139 - 01/20/18 04:28 PM Re: Cleaning EGR and PCV Valve? [Re: maverickfhs]
maverickfhs Offline


Registered: 12/28/16
Posts: 1984
Loc: VA
Oh well, I spent some time with the car and at least not worried it'll fail because of no maintenance.

Worst case, I'll replace them if any issues.
_________________________
2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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