Check Engine light on
Melting Slicks
Joined: Oct 2016
Posts: 3,340
Likes: 2,084
From: Lehigh Valley PA
Possible causes
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
Last edited by Mayor111; Nov 2, 2018 at 09:09 AM.
Drifting
Joined: May 2007
Posts: 1,547
Likes: 210
From: Huntersville, NC
Yes you can drive. Driving and ignoring for a long time will saturate the fuel vap canister, but that takes some time.
The little flapper on the gas tank that you push down may be the culprit. If this is the leak and you can get it to seal, then engine start/run events will clear the CEL light. Or if you have an OBD2 reader, just clear the code to see if it stays gone.
There is a service bulletin of some sort out about fuel system leaks, Be sure to ask your dealer about that. That should be under warranty. Here is a link about it: https://www.corvetteblogger.com/2018...uel-tank-leak/ i've seen posts here about the fuel tank leak and there may be better info here about the issue.
The little flapper on the gas tank that you push down may be the culprit. If this is the leak and you can get it to seal, then engine start/run events will clear the CEL light. Or if you have an OBD2 reader, just clear the code to see if it stays gone.
There is a service bulletin of some sort out about fuel system leaks, Be sure to ask your dealer about that. That should be under warranty. Here is a link about it: https://www.corvetteblogger.com/2018...uel-tank-leak/ i've seen posts here about the fuel tank leak and there may be better info here about the issue.
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Brett Foote
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,362
From: NE South Carolina
Either take it to a dealer or get an OBD-II code reader online for $15-$30, plug it into the receptacle on the lower LH side of the instrument panel (near the hood release) read the code and go to this website - http://enginetroublecode.com/
Recommend getting the reader and learning how to use it for peace of mind, since the light alone could be anything from a bad air seal on the gas filler to serious engine damage.
Cheers!
Recommend getting the reader and learning how to use it for peace of mind, since the light alone could be anything from a bad air seal on the gas filler to serious engine damage.
Cheers!
Drifting
Joined: May 2007
Posts: 1,547
Likes: 210
From: Huntersville, NC
You probably won't see gas on the ground with a P0442. smelling gas probably means it is either the little spring cap you push in when you put a nozzle in the gas tank, or one of the small lines going from the fuel tanks to the EVAP system. My first suggestion is to take a lint-free cloth rag and clean the seal area at the tank filler. People do all sorts of stupid things with the gas pump like laying it on the ground to move cans for filling. One little grain of sand can keep that little flap from sealing.
If you go to a parts store ask them if it is a current or a history code. If a history, have them clear it and that should end the CEL. Then after 10 ignition cycles, you can have the car inspected (That's how the emissions inspectors know if you just cleared a Code.) If the code shows current , then it is probably wise to head to the dealer.
The more sophisticated Code readers will tell you when the status of a code has cleared after 10 ignition cycles. i don't know what the car parts store has. I use the DASHCOMMAND app on my iphone with a bluetooth OBD-2 reader I have and it shows I status and history of any engine codes.
If you go to a parts store ask them if it is a current or a history code. If a history, have them clear it and that should end the CEL. Then after 10 ignition cycles, you can have the car inspected (That's how the emissions inspectors know if you just cleared a Code.) If the code shows current , then it is probably wise to head to the dealer.
The more sophisticated Code readers will tell you when the status of a code has cleared after 10 ignition cycles. i don't know what the car parts store has. I use the DASHCOMMAND app on my iphone with a bluetooth OBD-2 reader I have and it shows I status and history of any engine codes.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,362
From: NE South Carolina
Last edited by JerryU; Nov 2, 2018 at 11:33 AM.
Melting Slicks
Joined: Jan 2013
Posts: 2,576
Likes: 237
From: Murphy NC
Melting Slicks
Joined: Jul 2014
Posts: 2,195
Likes: 479
From: Bonita Springs Florida
FWIW, you can as others have suggested buy a code reader. That's fine, you'll get the code and have then go to a website to find out what the code means. Then you can call your dealer and set up an appointment. Yes good to know what the code is for sure.
However, instead of the above, you can drive the car to the dealership when the code pops. Since you bought the car there and it's under warranty, the Svc mgr will more than likely not turn you away. I have never heard of a selling dealership do this to any one of their customers since checking the code is so easy. He (or one of his employees) will read the code, and tell you whether it will clear on its own, clear it immediately and send you on your merry way, or whether there is a problem that will need a service of some sort..
Rather surprised your dealership told you next week. When popped a CEL my dealership got me in the next day. I suspect it was the receptionist that answers the phones and has a schedule of what's available...which is probably the reason for the long wait. Figure, if you spent upwards of $60K for a car and you have a potential damaging problem, if you show up unannounced, they can fit you in before someone else that is there for a oil change or a routine service.
However, instead of the above, you can drive the car to the dealership when the code pops. Since you bought the car there and it's under warranty, the Svc mgr will more than likely not turn you away. I have never heard of a selling dealership do this to any one of their customers since checking the code is so easy. He (or one of his employees) will read the code, and tell you whether it will clear on its own, clear it immediately and send you on your merry way, or whether there is a problem that will need a service of some sort..
Rather surprised your dealership told you next week. When popped a CEL my dealership got me in the next day. I suspect it was the receptionist that answers the phones and has a schedule of what's available...which is probably the reason for the long wait. Figure, if you spent upwards of $60K for a car and you have a potential damaging problem, if you show up unannounced, they can fit you in before someone else that is there for a oil change or a routine service.
Race Director
Joined: Oct 2008
Posts: 17,982
Likes: 1,074
From: Lansing MI
Team Owner
Joined: Mar 2004
Posts: 30,055
Likes: 351
From: Big Red Ne
No. My son in law is a mechanic. He ran the code again and it came up the same P0711. Says it is faulty wiring harness to transmission. it shifts just fine. Not problems with hesitation or any other noticeable malfunction, no odors. Cleared the code and will wait to see if it comes back on. Thanks for your input.
Pro
Joined: Jan 2018
Posts: 642
Likes: 120
From: DFW Area TX
I have those 2 exact code when I bought the car back in Dec. 2017. Dealer just flushed the trans & updated the TCM.
Last edited by Blu-Beast; Nov 5, 2018 at 07:44 PM.
Team Owner
Joined: Mar 2004
Posts: 30,055
Likes: 351
From: Big Red Ne