CEL - Evap Emissions - P0442 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

dcplus14 · 10-02-2012, 11:06 PM

Hey everyone, I am just creating this to document my experience and hopefully help out anyone else who comes across this.

Took the car in this morning to diagnose a Check Engine Light issue, my car only has 13k on it, 2012 SS manual.

Car was diagnosed as follows, I am copy/pasting from service report:

"SCANNED VEHICLE WITH TECH II, DTC P0442 STORED. PERFORMED EVAP SYSTEM TEST. SYSTEM LEAKING VACUUM. PERFORMED EVAP SYSTEM SMOKE TEST. LEAK FROM EVAP VENT SOLENOID. REPLACED EVAP VENT SOLENOID. CLEARED DTC AND RETESTED SYSTEM, LEAK CORRECTED. L0616 2.8 TECH 2978

FP NUMBER = 22865590; DESCRIPTION = VALVE 3.130"

Hope this helps anyone, seems like a smoke test was needed to discover the issue. I was semi concerned I would get some flack from the dealer about the catch can installed. Lucky enough nothing of the sort, I would never have figured this one out on my own if I was out of warranty.

Good luck...thanks for reading.

Bounty600 · 11-29-2012, 09:17 AM

Was everything covered under warranty? I seem to be having the same problem with my black ss haha

Chevrolet Customer Svc · 11-29-2012, 10:48 AM

Quote:

Originally Posted by Bounty600

Was everything covered under warranty? I seem to be having the same problem with my black ss haha

We apologize for the frustrations. Have you been to the dealership to see if they can diagnose your vehicle and cover it? It sounds like you may be under the parameters of the Bumper-to-Bumper warranty. Please let us know the outcome.

Brandon
Chevrolet Customer Service

Bounty600 · 11-29-2012, 11:28 AM

I have, the past two times theyve said it was the gas cap and they've reset the CPU. I don't think it is though because it's come on during periods in which I haven't touched the gas cap for days ... If it were the same problem as above, would it be covered ?

Camaro588 · 11-30-2012, 07:04 AM

mine is in right now for the same issues, same exact reasons stated above mine is a 2012 V6, I posted this up 2 weeks ago.....funny that I was checking to see if anyone else had this same issue. mine has the same exact milage

Camaro588 · 11-30-2012, 07:06 AM

Quote:

Originally Posted by Bounty600

I have, the past two times theyve said it was the gas cap and they've reset the CPU. I don't think it is though because it's come on during periods in which I haven't touched the gas cap for days ... If it were the same problem as above, would it be covered ?

they said the same thing did smoke test 2nd time and found leak in evap system near gas tank

Camaro588 · 11-30-2012, 07:11 AM

Quote:

Originally Posted by Bounty600

Was everything covered under warranty? I seem to be having the same problem with my black ss haha

sorry, but yes it was covered. Forgot to mention that. I dropped it off this morning, we will see how long it will take them to replace vent. Hopefully that wont run into issues again, and I will have to bring it back for the fourth time!

firestone_ss · 12-02-2012, 03:08 PM

whats funny is the evap vent solenoid is supposed to leak until you turn it on in a seperate test,if you do a smoke test without turning the vent solenoid on you will get smoke from it and sometimes it looks like its coming from the gas tank,gm evap leaks have a habit of being bad fuel tank pressure sensors but who knows

Camaro588 · 12-03-2012, 07:05 AM

Quote:

Originally Posted by firestone_ss

whats funny is the evap vent solenoid is supposed to leak until you turn it on in a seperate test,if you do a smoke test without turning the vent solenoid on you will get smoke from it and sometimes it looks like its coming from the gas tank,gm evap leaks have a habit of being bad fuel tank pressure sensors but who knows

good to know,I will point that out if i get the same CEL again. Drove it now for 2 days no light yet. Funny thing is I noticed the car was idling around 500 rpm before fix, now its up too a grand. Also I noticed better throttle response, I've been told that it has nothing to do with performance; Something has def. changed though, dont know could just be my but dyno. Anyone else notice a change that had the leaking vent replaced, or is it just me.

firestone_ss · 12-03-2012, 12:44 PM

yea should not change performance or runablity,wonder if they did any flash to pcm while it was there,sometimes they will and not tell you since its a covered service,anyways hopefully no more check engine light

Chevrolet Customer Svc · 12-05-2012, 12:41 PM

Quote:

Originally Posted by Camaro588

sorry, but yes it was covered. Forgot to mention that. I dropped it off this morning, we will see how long it will take them to replace vent. Hopefully that wont run into issues again, and I will have to bring it back for the fourth time!

Camaro588,

It is great to hear everything was covered under warranty! Let us know any questions you may have!

Brandon
Chevrolet Customer Service

larmelev · 02-14-2013, 06:08 PM

my cel is on now for the second time with p0442 code. It only seems to happen if I let the fuel level get down really low. Last time I took it in they told me it was a loose gas cap and could not find a leak.

Chevrolet Customer Svc · 02-15-2013, 08:05 AM

Quote:

Originally Posted by larmelev

my cel is on now for the second time with p0442 code. It only seems to happen if I let the fuel level get down really low. Last time I took it in they told me it was a loose gas cap and could not find a leak.

We apologize for the frustrations! let us know what the dealership was able to do for you this time around.

Brandon
Chevrolet Customer Service

larmelev · 03-07-2013, 10:18 PM

I had the exact same problem, low fuel level set code P0442. The second time I took the car in I left the fuel level low and they found the leak. They replaced the Evaporative Emission Canister Vent Solenoid Valve Part #22865590 and turned off the light. Hopefully that solved the problem.

10-02-2012, 11:06 PM	#1
dcplus14 Drives: '12 Camaro 2SS/RS/Hurst Join Date: Jan 2012 Location: San Diego Posts: 480 View My Garage	CEL - Evap Emissions - P0442 Hey everyone, I am just creating this to document my experience and hopefully help out anyone else who comes across this. Took the car in this morning to diagnose a Check Engine Light issue, my car only has 13k on it, 2012 SS manual. Car was diagnosed as follows, I am copy/pasting from service report: "SCANNED VEHICLE WITH TECH II, DTC P0442 STORED. PERFORMED EVAP SYSTEM TEST. SYSTEM LEAKING VACUUM. PERFORMED EVAP SYSTEM SMOKE TEST. LEAK FROM EVAP VENT SOLENOID. REPLACED EVAP VENT SOLENOID. CLEARED DTC AND RETESTED SYSTEM, LEAK CORRECTED. L0616 2.8 TECH 2978 FP NUMBER = 22865590; DESCRIPTION = VALVE 3.130" Hope this helps anyone, seems like a smoke test was needed to discover the issue. I was semi concerned I would get some flack from the dealer about the catch can installed. Lucky enough nothing of the sort, I would never have figured this one out on my own if I was out of warranty. Good luck...thanks for reading. __________________ 2012 Camaro 2SS/RS: Black on Black, Hurst [AAC DRL LED's, AAC LED's for trunk, cabin, license plate, CAI Intake, RX Catch Can, Skip shift eliminator, Pedders Sub-Frame Inserts, Pedders Radius Rod Inserts, Pedders Rack & Pinion Bushing, 1LE front and rear sway bars] Last edited by dcplus14; 10-03-2012 at 01:20 PM.

11-30-2012, 07:04 AM	#5
Camaro588 Drives: 2012 camaro LS Join Date: Mar 2012 Location: Albany N.Y. Posts: 140	mine is in right now for the same issues, same exact reasons stated above mine is a 2012 V6, I posted this up 2 weeks ago.....funny that I was checking to see if anyone else had this same issue. mine has the same exact milage Last edited by Camaro588; 11-30-2012 at 07:05 AM. Reason: addition

11-29-2012, 09:17 AM	#2
Bounty600 Drives: 1989 Firebird GTA, 2012 Camaro SS Join Date: Dec 2011 Location: Mobile, AL Posts: 47 View My Garage	Was everything covered under warranty? I seem to be having the same problem with my black ss haha

11-29-2012, 11:28 AM	#4
Bounty600 Drives: 1989 Firebird GTA, 2012 Camaro SS Join Date: Dec 2011 Location: Mobile, AL Posts: 47 View My Garage	I have, the past two times theyve said it was the gas cap and they've reset the CPU. I don't think it is though because it's come on during periods in which I haven't touched the gas cap for days ... If it were the same problem as above, would it be covered ?

12-02-2012, 03:08 PM	#8
firestone_ss Drives: 2010 camaro ss Join Date: May 2009 Location: Tacoma WA Posts: 779	whats funny is the evap vent solenoid is supposed to leak until you turn it on in a seperate test,if you do a smoke test without turning the vent solenoid on you will get smoke from it and sometimes it looks like its coming from the gas tank,gm evap leaks have a habit of being bad fuel tank pressure sensors but who knows

12-03-2012, 12:44 PM	#10
firestone_ss Drives: 2010 camaro ss Join Date: May 2009 Location: Tacoma WA Posts: 779	yea should not change performance or runablity,wonder if they did any flash to pcm while it was there,sometimes they will and not tell you since its a covered service,anyways hopefully no more check engine light

02-14-2013, 06:08 PM	#12
larmelev Drives: 2012 Victory red ls Join Date: Mar 2012 Location: Miller Mo. Posts: 7 View My Garage	my cel is on now for the second time with p0442 code. It only seems to happen if I let the fuel level get down really low. Last time I took it in they told me it was a loose gas cap and could not find a leak.

03-07-2013, 10:18 PM	#14
larmelev Drives: 2012 Victory red ls Join Date: Mar 2012 Location: Miller Mo. Posts: 7 View My Garage	I had the exact same problem, low fuel level set code P0442. The second time I took the car in I left the fuel level low and they found the leak. They replaced the Evaporative Emission Canister Vent Solenoid Valve Part #22865590 and turned off the light. Hopefully that solved the problem.