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2012 chevy equinox with 121,xxxx #5138971
06/20/19 06:31 AM
06/20/19 06:31 AM
Joined: Jun 2019
Posts: 5
AZ
Robw Offline OP
Robw  Offline OP

Joined: Jun 2019
Posts: 5
AZ
Ok so i keep getting code to change purge valve, I did it twice!!! Still on!! Then bank one sensor, still on! It keeps pushing the pcv hose out of the air intake, took oil cap off has blow by.... im confused on what could be going on here... but it loses oil when the pcv hose pops off of course.... any help suggestions etc. Would be great...thank-you

Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139018
06/20/19 07:45 AM
06/20/19 07:45 AM
Joined: May 2009
Posts: 13,100
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline

Joined: May 2009
Posts: 13,100
N.H, U.S.A.
does it have a PCV valve or just an orifice?

You mentioned the PCV air IN from the AF but not PCV to throttle body or manifold.

Look for blockages in the plumbing and TB.

Taking off the oil cap doesnt generally tell you if you have blowby,. Thats the crank case volume change do to piston movement above the oil pan.

What engine? LF1 sixer or LEA 4 banger?

Last edited by ARCOgraphite; 06/20/19 07:45 AM.

2019 VW Jetta S 6MT OCI#0 5033mi-Castrol Edge Prof? VW508+OE Filter; '17 Subaru Crosstrek CVT OC#7 52665mi-Castrol GTX Magnatec 5W20 + SOA Filter
Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139023
06/20/19 07:59 AM
06/20/19 07:59 AM
Joined: Jan 2013
Posts: 1,630
America's Dairyland
LotI Offline
LotI  Offline

Joined: Jan 2013
Posts: 1,630
America's Dairyland
You need further diagnosis. There is no code to change the purge valve, only out of normal parameter codes.


03 Honda Interceptor
11 Kawasaki KLR 650
12 Ford E450
17 VW GTI
Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139024
06/20/19 08:00 AM
06/20/19 08:00 AM
Joined: May 2019
Posts: 791
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 791
WA
Assuming your egr solenoid is clicking, check for vacuum leaks and/or bad fuel tank pressure sensor. Make sure your gas cap closes tight. If your egr is opening and closing with the new valve, you can probably rule out a bad solenoid and control circuit. I'd say it's a pressure issue. Otherwise check the wiring harness and control circuit voltage.

If your pcv is held in just by a grommet like on my old Camry, it's either plugged or you got really bad blow by. If the pcv screws in like my current car, I'm not sure what to make of it. Is the hose coming off the pcv going to the intake just popping out/off of the intake fitting??? Maybe it's just a bad angle and you need a [better] clamp on it.

Last edited by Mad_Hatter; 06/20/19 08:14 AM.
Re: 2012 chevy equinox with 121,xxxx [Re: ARCOgraphite] #5139087
06/20/19 09:27 AM
06/20/19 09:27 AM
Joined: Jun 2019
Posts: 5
AZ
Robw Offline OP
Robw  Offline OP

Joined: Jun 2019
Posts: 5
AZ
4 banger!... the pvc is in the head cover

Re: 2012 chevy equinox with 121,xxxx [Re: Mad_Hatter] #5139088
06/20/19 09:30 AM
06/20/19 09:30 AM
Joined: Jun 2019
Posts: 5
AZ
Robw Offline OP
Robw  Offline OP

Joined: Jun 2019
Posts: 5
AZ
Ya know its not the factory gas cap, the previous owner replaced it and it say turn to one click but it always clicks two or more or if you do it softly it doesnt give it a full click...

Re: 2012 chevy equinox with 121,xxxx [Re: Mad_Hatter] #5139091
06/20/19 09:31 AM
06/20/19 09:31 AM
Joined: Jun 2019
Posts: 5
AZ
Robw Offline OP
Robw  Offline OP

Joined: Jun 2019
Posts: 5
AZ
And it pops off where you click it into the intake

Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139166
06/20/19 11:33 AM
06/20/19 11:33 AM
Joined: May 2019
Posts: 791
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 791
WA
What are the codes you're getting?

Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139204
06/20/19 12:33 PM
06/20/19 12:33 PM
Joined: Aug 2004
Posts: 20,898
CA
The Critic Offline
The Critic  Offline

Joined: Aug 2004
Posts: 20,898
CA
https://www.equinoxforum.net/18-faq...alve-causing-rear-main-seal-failure.html

Take care of this asap before it blows the rear main seal as well.


2011 Toyota Prius 1.8L - 193K - Idemitsu ZEPRO Adv. Moly 0W-20
2007 Honda Accord 2.4 - 137K - Mobil 1 EP HM 5W-30
Re: 2012 chevy equinox with 121,xxxx [Re: Mad_Hatter] #5139216
06/20/19 12:55 PM
06/20/19 12:55 PM
Joined: Jun 2019
Posts: 5
AZ
Robw Offline OP
Robw  Offline OP

Joined: Jun 2019
Posts: 5
AZ
P0013 and p0442 like I said though, I changed the purge and bank 1 sensor

Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5139256
06/20/19 01:40 PM
06/20/19 01:40 PM
Joined: May 2019
Posts: 791
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 791
WA
Originally Posted by Robw
P0013 and p0442 like I said though, I changed the purge and bank 1 sensor


Well you know the codes so use Google to find what are the common causes for the EVAP DTC's and roll up your sleeves and get to work. Otherwise take it into a shop.

Start with that gas cap...

Re: 2012 chevy equinox with 121,xxxx [Re: Robw] #5140255
06/21/19 03:51 PM
06/21/19 03:51 PM
Joined: Mar 2019
Posts: 136
Iowa City
Talent_Keyhole Offline
Talent_Keyhole  Offline

Joined: Mar 2019
Posts: 136
Iowa City
Originally Posted by Robw
Ok so i keep getting code to change purge valve, I did it twice!!! Still on!! Then bank one sensor, still on! It keeps pushing the pcv hose out of the air intake, took oil cap off has blow by.... im confused on what could be going on here... but it loses oil when the pcv hose pops off of course.... any help suggestions etc. Would be great...thank-you



Sounds like you have multiple problems. The most urgent is your crankcase pressure that is building up and forcing the PCV vent tube to become dislodged. The PCV oriffice in the head is likely clogged. There is GM Technical Service Bulletin on this. Go to the Equinox forum for advice. I have 2012 Equinox, 2.4L and I am aware of this problem.

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