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Check engine light blinking and code p0499

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Old May 11, 2015 | 06:45 PM
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Default Check engine light blinking and code p0499

was driving on the highway and was suddenly car was running rough and engine light came on and I put the scanner in and code p0499 I searched that code and c6 vettes that code is a solenoid could it be the same problem also car won't start
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Old May 12, 2015 | 10:10 AM
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Originally Posted by Seannyc
was driving on the highway and was suddenly car was running rough and engine light came on and I put the scanner in and code p0499 I searched that code and c6 vettes that code is a solenoid could it be the same problem also car won't start
Service Manual says( Engine Controls and Fuel) Chapter 9 page 221 Then it says Evaporative Emission (EVAP) Vent Solenoid Valve Control Circuit is High. Shorted to voltage.
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Old May 12, 2015 | 10:18 AM
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Originally Posted by Jim Barker
Service Manual says( Engine Controls and Fuel) Chapter 9 page 221 Then it says Evaporative Emission (EVAP) Vent Solenoid Valve Control Circuit is High. Shorted to voltage.
Let us know how its related to not starting
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Old May 12, 2015 | 01:18 PM
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Originally Posted by Jim Barker
Service Manual says( Engine Controls and Fuel) Chapter 9 page 221 Then it says Evaporative Emission (EVAP) Vent Solenoid Valve Control Circuit is High. Shorted to voltage.
I towed it to the dealer same day waitin for them to find out so u think that code is serious or minor
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Old May 12, 2015 | 01:57 PM
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Loose battery connection.
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Old May 14, 2015 | 04:47 PM
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just got a call from the dealer they said it's a valve issue and still checking what else is the problem they said it's not a engine problem but should this be a serious problem or should it be a easy fix
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Old May 14, 2015 | 08:38 PM
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Originally Posted by Seannyc
just got a call from the dealer they said it's a valve issue and still checking what else is the problem they said it's not a engine problem but should this be a serious problem or should it be a easy fix
Hey Sean,

We are sorry to hear that that you encountered this code on your C7, but we are glad that you are currently working with your dealership on this situation. Feel free to send us a PM if there is anything that we can look into for you. have a great night and we hope to hear from you soon.

Best Regards,


Brandon M.
Chevrolet Customer Care
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Old May 16, 2015 | 03:17 AM
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Originally Posted by Chevy Cust Svc
Hey Sean,

We are sorry to hear that that you encountered this code on your C7, but we are glad that you are currently working with your dealership on this situation. Feel free to send us a PM if there is anything that we can look into for you. have a great night and we hope to hear from you soon.

Best Regards,


Brandon M.
Chevrolet Customer Care
Just got a call back earlier today service guy said 3 valves are out there checkin for more damages but idk if I should be worried should I request for new engine new car idk
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Old May 16, 2015 | 06:22 AM
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Yikes...how many miles on the car?
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Old May 16, 2015 | 06:34 AM
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Originally Posted by nyvetteguy007
yikes...how many miles on the car?
1200
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Old May 16, 2015 | 06:42 AM
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Blinking SES light is usually a bad sign (ie: misfire). Steady SES is usually a emissions issue.
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Old May 16, 2015 | 06:45 AM
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Originally Posted by Seannyc
1200
Wow...guess like a thing else, a catastrophic failure will happen early usually, if it's going to happen...is the factory fill oil in there or have you had the oil changed?
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Old May 17, 2015 | 03:09 AM
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Originally Posted by Nyvetteguy007
Wow...guess like a thing else, a catastrophic failure will happen early usually, if it's going to happen...is the factory fill oil in there or have you had the oil changed?
Changed the oil at 1K mobil 1

Last edited by Seannyc; May 17, 2015 at 03:11 AM.
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Old May 18, 2015 | 02:19 AM
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Originally Posted by Seannyc
Just got a call back earlier today service guy said 3 valves are out there checkin for more damages but idk if I should be worried should I request for new engine new car idk
Straight answer is no... With how many cars Chevrolet is rolling out of bg, a few cars are destined to have some faults and the faults your car currently has does not seem to merit a whole new engine or a brand new car, just role along with what the dealer says for now since they seem to be repairing it.
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Old May 18, 2015 | 02:55 AM
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Originally Posted by Nicksvette
Straight answer is no... With how many cars Chevrolet is rolling out of bg, a few cars are destined to have some faults and the faults your car currently has does not seem to merit a whole new engine or a brand new car, just role along with what the dealer says for now since they seem to be repairing it.
Yah I understand that but just don't wanna be worried in the future for more engine problems I wanted to put some performance parts on Should I not do it anymore and put another couple thousand miles on it And then start

With a new engine this won't let me be worried
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Old May 18, 2015 | 07:37 AM
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My observation is, it depends on what kind of "performance parts" you put on the car. If they are significant improvements that potentially change the engine/powertrain and you have an engine or powertrain issue in the future, you may be denied a warranty claim (denied, not voided altho that is possible under some circumstances-do reading up on topic). Denied also means you will be paying out of pocket, so the old saying, "you have to be willing to pay to play," becomes key here. Just saying so you know to check on here first as to how something might affect you, and the car.
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Old May 18, 2015 | 09:51 AM
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Originally Posted by Seannyc
Yah I understand that but just don't wanna be worried in the future for more engine problems I wanted to put some performance parts on Should I not do it anymore and put another couple thousand miles on it And then start

With a new engine this won't let me be worried
Pitch a bitch until you get a new motor then. If it's about trusting the car again, then explain that to them. If it's just a couple valves on one head I would ask the question "WHY" and if they do their due diligence on the rest of the motor I would be ok with them just replacing one head.
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Old May 24, 2015 | 06:23 PM
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Default p0449

any1 here bother to check the code ???
it is an evap fuel vapor codes !!!!
1.) its manufacture responsibility 8 years and 80 k miles
2.) service writer cant even change a plug on ur car ...they are dealer
who only do what manufacture told them to do on new car ...they don't diagnose!!!! ..they take print out and change parts ...PERIOD!!!
3.) look up that code on google .....gm have this problems on other models previously under TSB and warranty !!!
---> I fixed an 09' acardia wth a revised evap solenoid cuz it was a design fault .....
stop scaring urself !!!!!
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Old May 24, 2015 | 07:29 PM
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Has the engine been modded in any way by chance?
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Old May 24, 2015 | 07:32 PM
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Agree with kcbc. Had same issue on my C6. In the C6, one valve is near the throttle body. A second one was near the drivers side has tank. I replaced the one at the TB but of course the malfunctioning one was at the tank. Dealer took care of it quickly. No issues. Rest easy.
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