PCV valve removal technique - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SS13 · 06-27-2020, 07:01 PM

All I want to do at this time with my 13SS L99 is replace the PCV valve. What is the technique for removing the existing one and installing the new one? Does it twist off or what?

InFiD3ViL · 06-27-2020, 07:44 PM

We don't have a standard PCV valve like older cars or a SBC. It is integrated into the valve cover. It is more like a PCV system with a fixed orifice - Which you really want to keep.

SS13 · 06-28-2020, 08:55 AM

I am not trying to delete the PCV --- just replace the existing one with a 'new' one.

InFiD3ViL · 06-28-2020, 05:36 PM

For what reason? What is going on that you need to do this? Not trying to give you a hard time, just curious.

'10CamaroDude · 06-29-2020, 01:26 AM

Quote:

Originally Posted by SS13

I am not trying to delete the PCV --- just replace the existing one with a 'new' one.

There is no reason to replace it, they do not go "bad.", but can clog.

They do not have a spring and check-ball in them, they are open, with
set hole sizes. If you think you are experiencing a flow problem, just
remove it and clean it. It will pull straight out with pliers. Then you
gently hammer it back in to seat it.

Check the sizes of the holes in the PCV. The top hole should be 7/64", and
the bottom two holes should be 5/64". You can check that with the same
size drill bits. IF they're too small, then USE the drill bits to change the size
of the holes. This was an update in the 2010 to early 2013 V6 models.
Late 2013 and up, all have the new PCV orifice sizes. Not sure if the
same year V8s were effected.

I have a 2010 V6, and one bottom hole was clogged, and I had some oil
leaks. I drilled the new holes, the oil leaks went away.

SS13 · 06-29-2020, 09:47 AM

Quote:

Originally Posted by '10CamaroDude

There is no reason to replace it, they do not go "bad.", but can clog.

They do not have a spring and check-ball in them, they are open, with
set hole sizes. If you think you are experiencing a flow problem, just
remove it and clean it. It will pull straight out with pliers. Then you
gently hammer it back in to seat it.

Check the sizes of the holes in the PCV. The top hole should be 7/64", and
the bottom two holes should be 5/64". You can check that with the same
size drill bits. IF they're too small, then USE the drill bits to change the size
of the holes. This was an update in the 2010 to early 2013 V6 models.
Late 2013 and up, all have the new PCV orifice sizes. Not sure if the
same year V8s were effected.

I have a 2010 V6, and one bottom hole was clogged, and I had some oil
leaks. I drilled the new holes, the oil leaks went away.

Thank you for your reply.

NYstreetguru · 01-17-2021, 01:17 AM

I just got a 2012 by which 56k miles. I am reading that this is an important mod so I am going to do it. But some say that it is near pointless unless you ALSO install a catch can. Thoughts?

CamaroCracka · 01-19-2021, 08:48 AM

The orifice sizes control how much air can flow through the crankcase, i.e. how much pressure can build up or not. A catch can captures oil flowing through the PCV system as an unintended consequence of the process. Two different things really, but if you increase the size of the orifice, I would imagine you could increase the amount of oil getting into the intake. A catch can would not make the PCV mod work or not work, it would just trap any oil in PCV system before it gets to the intake.

06-27-2020, 07:01 PM	#1
SS13 Drives: Camaro SS Join Date: Apr 2020 Location: Michigan Posts: 27	PCV valve removal technique All I want to do at this time with my 13SS L99 is replace the PCV valve. What is the technique for removing the existing one and installing the new one? Does it twist off or what?

06-27-2020, 07:44 PM	#2
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	We don't have a standard PCV valve like older cars or a SBC. It is integrated into the valve cover. It is more like a PCV system with a fixed orifice - Which you really want to keep. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

06-28-2020, 05:36 PM	#4
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	For what reason? What is going on that you need to do this? Not trying to give you a hard time, just curious. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

01-19-2021, 08:48 AM	#8
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,736	The orifice sizes control how much air can flow through the crankcase, i.e. how much pressure can build up or not. A catch can captures oil flowing through the PCV system as an unintended consequence of the process. Two different things really, but if you increase the size of the orifice, I would imagine you could increase the amount of oil getting into the intake. A catch can would not make the PCV mod work or not work, it would just trap any oil in PCV system before it gets to the intake. __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.

06-28-2020, 08:55 AM	#3
SS13 Drives: Camaro SS Join Date: Apr 2020 Location: Michigan Posts: 27	I am not trying to delete the PCV --- just replace the existing one with a 'new' one.

01-17-2021, 01:17 AM	#7
NYstreetguru Drives: 2012 2LT RS Join Date: Dec 2020 Location: Binghamton, NY Posts: 32	I just got a 2012 by which 56k miles. I am reading that this is an important mod so I am going to do it. But some say that it is near pointless unless you ALSO install a catch can. Thoughts?