Why does the check fuel cap light come on?
When the Check Fuel Cap Light comes on in the dashboard, this may indicate that the fuel cap has not been affixed onto the fuel tank filler tube properly, the fuel cap is missing from the fuel tank filler tube, or that the fuel cap is damaged in some way. These issues will prevent the fuel cap from serving one or more of its many vital purposes.
What does it mean if your gas cap is loose?
This system monitors a number of engine and emissions-related components to ensure that everything is in working order. If your gas cap is not properly attached, you may see a “Check Engine” light or a “Loose Cap” warning light on the dash.
How can I tell if my gas cap is cracked?
Open the gas cap door if required and get out of the car. If it is dark, take a flashlight with you. In order to check if the gas cap is cracked, you may need the extra light. Look at the gas cap. Do you notice any cracks, chips, or tears in it? If so, a simple gas cap replacement may be able to solve your problem.
How to reset the warning light gas cap that is loose?
Open the door. Grasp the gas cap handle and twist it counterclockwise to unscrew it. Remove it. Replace the gas cap. Removing and replacing it ensures the thread seals properly, in case it wasn’t before. Turn the gas cap clockwise to tighten it. Continue turning until you hear it click three times. This ensures it’s seating properly.
Why does the gas cap light come on but not the Check Engine light?
If there is any abnormal wear or damage to it, even a new gas cap may not seal properly. It can also be possible that there is an EVAP system leak or fault even though the check engine light is not on or an EVAP system leak fault present.
What to do if your gas cap is loose?
If your gas cap is not properly attached, you may see a “Check Engine” light or a “Loose Cap” warning light on the dash. You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed, or you can use an OBD-II code scanner to manually reset the system. Turn off your vehicle’s engine.
How to reset ” check fuel cap ” message?
2006 Odyssey LXi After filling up a couple of days ago the “check fuel cap” indicator came on. I have continued to drive it for about 300 miles. I replaced … read more I have a 2006 civic, and since my last fill up my dash has a message to “check gas cap.” Gas cap is on, clicked 3x in the locked position, yet the … read more
What does OBDII code mean on fuel cap?
If you have OBDII codes that indicate Evaporative Emissions System leaks, certainly the first thing to check, since its the easiest, but there could many causes of the leak besides that.
How to check the gas cap on a Nissan?
As you can see in the ladder diagram from the Nissan service manual, action step 1A is to check the fuel cap. By popular demand I added a common evap system electrical diagram at the bottom. Watch the short video and review the diagrams to see how this system works. First, let’s talk a little more about the gas cap code and the possible causes.
Why does my Saturn Ion stop when I change the fuel?
It’ll stop as soon as you switch to the correct one. If it’s a heavier sound and you’re already using at least an 87 octane fuel, your engine needs service. Inspect the Saturn Ion’s fuel for dirt or moisture whenever the engine sounds irregular or rough. Other possible causes are a clogged air filter or a problem with the fuel pump.
What can cause ” check gas cap ” warnings other than a loose gas cap?
There should a rubber hose that goes from the top of your gas tank to the engine bay. I had what sounds like a similar problem. (Codes p0440 P0442 p0445 p0455 P0496 at different times.) Cause was a leak at the top end of the filler neck, where the cap screws on.