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it's leaking or not sealing properly, bad sensor and or wiring
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∙ 18y ago
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Why does check engine light keep coming on?
replace your gas cap first - cheepest try. i had a crack in a vacuum hose that made it keep coming on. You have an emssions problem of some sort. It may be the gas cap and could be many other things. Unless you are knowledgable, take it to a professional if a new gas cap does not fix it. BTW, a loose gas cap will cause the light to come on. Tighten it 3 clicks.
Your 2000 Chevy cavalier's check engine light keeps coming on code says it's emissions gas cap but light keeps coming on what can it be?
make sure gas cap is on all the way or missing cap ,this car must have a gas cap or computer will read [large] emissions leak or emission gas cap, hope this works!
How do you make check engine light stop coming on because of loose gas cap?
Replace the gas cap with a new one and tighten it 3 clicks.
2004 Pontiac Grand Prix GT and the check gas cap light keeps coming even after you checked the cap why?
Could be a defective gas cap (bad sealing gasket?)
How do you reset the gas cap light on 2005 buick rendezvous?
The gas cap light will go out automatically after you tighten, or replace the gas cap.
How do you disable the sensor for the gas cap in a 1998 Chevy Tahoe so the service engine soon light won't keep coming on?
you can't. you need to fix what is causing the fuel vapor leak.
2002 ford focus gas light keeps coming on have replaced gas cap need to know other possible causes for gas light and service engine to keep coming on?
If you've replaced the cap and it's tight, you've probably got a hose loose or off on your vaporization system. That's the canister that filter the vapor from your fuel tank. That will also make the light come on. Check all the hoses under the hood and make sure they are all tight. Give that a shot.
How do you keep the check engine light off when you fill up a 2000 Subaru Outback with gas?
make sure when putting gas cap back on that you tighten the cap until it clicks or the check engine light will ccome on
The gas cap light is on and i changed the cap but the light wont go off what else could it be?
Any vapor leak from the fuel system can cause a "gas cap" light.
Does the gas cap not being on tight makes the gas light come on?
No, a loose gas cap can cause the check engine light to come on but not the low fuel light.
What causes VSC light coming on on Toyota crown?
This sounds crazy.......your gas cap must click when you screw it on. After you have tightened your cap, disconnect your battery and wait 20 seconds and reconnect it. Your light should now be off.
2002 ford focus gas light keeps coming on have replaced gas cap need to know other possible causes for gas light and service engine to keep coming on have checked hoses and replaced fuel filter?
Hummm.... Tough one. I would carry it by one of the parts store that will read the code for free. Autozone is one. If you have the code, you can find out whats going on. Wish I could tell you more.
