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Engine Light Reset

2007 Yukon engine light came on said to check gas cap, how do you reset light?

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  • 39 Answers

If you have your owners manuel you should find the procedure in there

Posted on Oct 22, 2013

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Posted on Jan 02, 2017

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SOURCE: kia engine codes

I f you dont have a code reader try disconnecting the neg (black) side of the battery and let it stay for about 10 min this should re boot computer

Posted on Jul 18, 2008

ewashmidas
  • 362 Answers

SOURCE: Check engine light keeps coming on replaced gas cap already

Your problem is in the evaporative emission system which is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, even small ones, can allow fuel vapors to escape into the atmosphere. The light coming on can be caused by one of the following:

1. Defective or loose fuel cap
2. EVAP canister or hose cracked- not connected
3. Purge or vent solenoid defective
4. Vacuum leak at engine Government regulations require on-board testing to make sure that the evaporative (EVAP) system is functioning properly. The leak detection system tests for EVAP system leaks and blockage. It also performs self-diagnostics. You have tried the easy fix, the gas cap. Finding the leak now will require special equipment and testing procedures, might be better left to a professional.

Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!

Posted on Mar 18, 2009

yankstorm02
  • 145 Answers

SOURCE: check engine light on

You cannot reset the check engine light any other way than using a scan tool. Some auto parts stores will scan the vehicle for free then at least you will know the area of the fault.

Posted on May 07, 2009

  • 19 Answers

SOURCE: toyota seinna po440, po441, po446

you have to understand that there is a leak in the system other than the gas cap for the evaporative system. The system needs to be professionally closed, and smoke introduced into to find the leak, and a through component check, eg.. purge valve vapor canister vent solenoid all functioning correctly

Posted on Sep 01, 2009

  • 56 Answers

SOURCE: Check engine light continues to come on even after

when u are infront of the car. exact location front side of the intake manifold,,,,,,,evaporative emission canister purge solenoid valve,5.3 L engine gmc yukon.

Posted on Jun 25, 2010

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The engine light is on and the code said gas cap but a new gas cap did not work


You may have to bring the truck to your local mechanic or an autozone and reset your computer.You can also do it by taking your negitive battery cable off for 10 to 30 seconds.If you go that rout you will have to reset your radio channels.When you get a check engine light depending if it is a hard or soft code it is stored in the pcm.you will have to remove the code or it will keep it stored

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Reset the engine warning light after installing a new gas cap


Disconect the battery for 30 min to reset the computer in the car, if the light is still on then you can purchase a code reader at any local automotive supply store and clear it yourself.

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Use an OBD2 code reader (you can buy them at WalMart). If there are no codes stored there is a reset function that will turn off the light. If the light comes back on after that, then there is another problem.

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I have a 2004 Yukon denali and while driving, I got check gas cap alarm. 2 miles later check engine light is on. Checked gas cap, cleaned gasket and tightened. Drove for 2 days. Reset fault and drove 160...


Hello, have you tried to unhook the negative side of the battery for about 10 minutes and then go from there . It should reset the computer completely .

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1 Answer

How to reset the engine light on a 2007 yukon denali gmc


The check engine light is reset with the scanner. You can also try disconnecting the battery for about 1/2 hour and then connecting it again. If there is a fault code the light will come on again.

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I think someone loosened my gas cap on my 07 silverado, would like to know if there is a way to reset engine light.


Once you tighten the gas cap the engine light will reset itself after it has gone threw the necessary drive cycles, but only if the problem has been fixed. So yes if the check engine light came on for the reason of a loose gas cap, once you tighten it it will go off on its own.

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Best to rent a scanner and check for other problems. If ok, the scanner will clear the light. If you bought a vented cap, the trouble will remain until a sealed cap is installed.

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I am getting a tighten gas cap message, however cap is on and tight. Check engine light is on


The gas cap is most likely faulty. The gas cap is an integral part of the evaporative emission system. If it is not sealing or venting properly, it can affect the proper operation of this system. I would replace the gas cap and have the check engine light reset at an autoparts store. Most stores will scan/reset computer for free. Hope this helped and best wishes.

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