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Cleaning EGR and PCV Valve? #4640479
01/19/18 09:00 PM
01/19/18 09:00 PM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
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


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640481
01/19/18 09:07 PM
01/19/18 09:07 PM
Joined: Dec 2016
Posts: 7,174
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,174
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)


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640482
01/19/18 09:07 PM
01/19/18 09:07 PM
Joined: Dec 2016
Posts: 7,174
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,174
Waco, TX
Cleaning the EGR is a LOT more involved and not really an "easy" clean & lube item


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640483
01/19/18 09:10 PM
01/19/18 09:10 PM
Joined: Oct 2009
Posts: 3,526
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,526
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?

Last edited by JohnnyJohnson; 01/19/18 09:12 PM.

2004 Corolla 126884
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Cleaning EGR and PCV Valve? [Re: Linctex] #4640490
01/19/18 09:17 PM
01/19/18 09:17 PM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
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 202K/AT
2006 Acura TSX 180K/AT
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640556
01/19/18 11:36 PM
01/19/18 11:36 PM
Joined: Jan 2018
Posts: 538
San Antonio, TX
das_peikko Offline
das_peikko  Offline
Joined: Jan 2018
Posts: 538
San Antonio, TX
I put the PCV valve in a jar of mineral spirits and shake it up.

Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640570
01/20/18 12:07 AM
01/20/18 12:07 AM
Joined: Aug 2002
Posts: 419
USA
thrace Offline
thrace  Offline
Joined: Aug 2002
Posts: 419
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.

Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640625
01/20/18 04:39 AM
01/20/18 04:39 AM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
Block off EGR and vent PVC directly into the exhaust stream with a moroso extractor kit


Cable ties should hold it
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640708
01/20/18 08:46 AM
01/20/18 08:46 AM
Joined: Sep 2002
Posts: 2,385
VA
Gebo Offline
Gebo  Offline
Joined: Sep 2002
Posts: 2,385
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.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 60K
Amsoil in all engines, transmissions and differentials

Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640710
01/20/18 08:48 AM
01/20/18 08:48 AM
Joined: Mar 2011
Posts: 1,903
CA
spackard Offline
spackard  Offline
Joined: Mar 2011
Posts: 1,903
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.

Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640820
01/20/18 10:17 AM
01/20/18 10:17 AM
Joined: Aug 2003
Posts: 11,014
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 11,014
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.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4640856
01/20/18 10:54 AM
01/20/18 10:54 AM
Joined: Jan 2008
Posts: 10,972
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,972
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.

Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4641056
01/20/18 02:21 PM
01/20/18 02:21 PM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
VA
I actually cleaned both of them as a preventative, let's see if there are any ill effects of it.


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4641127
01/20/18 04:12 PM
01/20/18 04:12 PM
Joined: Jan 2011
Posts: 2,836
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,836
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.

Last edited by Lubener; 01/20/18 04:14 PM.

The "thinking" man's friend.
Re: Cleaning EGR and PCV Valve? [Re: maverickfhs] #4641139
01/20/18 04:28 PM
01/20/18 04:28 PM
Joined: Dec 2016
Posts: 2,204
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,204
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 202K/AT
2006 Acura TSX 180K/AT

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