Tighten Gas Cap Message - Web the “tighten fuel cap” message typically appears when your car’s onboard computer senses a problem with. Web i have a 2005 chevy silverado crew cab, 5.3 l , 4x4., single tank,the tighten fuel cap message started. Web if your gas cap is not properly attached, you may see a check engine light or a loose cap warning light on the dash.
Web the “tighten fuel cap” message typically appears when your car’s onboard computer senses a problem with. Web if your gas cap is not properly attached, you may see a check engine light or a loose cap warning light on the dash. Web i have a 2005 chevy silverado crew cab, 5.3 l , 4x4., single tank,the tighten fuel cap message started.