I have a 2015 3/4 ton Silverado. When the fuel level drops below around 3/4 tank my check engine light come on. When I fill the tank and drive a little bit, like home from the gas station, the next time I start my truck the light is off. It stays off until I get below 3/4 tank again. It isn't exactly 3/4 of a tank, sometimes it comes be around a half a tank. I changed the air filter, which was pretty dirty and I thought that fixed it. But no, the light just came on a little later. I'm sure it's some type of emissions problem (it seems like the check engine is usually an emissions problem). But what??
Selj
When the check engine light is on connect a OBD2 Scanner and find out what code is being generated and post it up here. That will help us to determine what the problem could be.
If you are throwing parts at it. It sounds like a gasser. Buy a new gas cap. possibly the seal is gone on the old one.
Next time you get the light, remove your fuel tank cap and see if the light clears without doing anything else. It COULD be the fuel cap, and that would be EASY and CHEAP to fix.
As for you code, see this: OB2 code P01F0
As for you code, see this: OB2 code P01F0
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