![]() ![]() RAY: The Tweel is both a terrible name and an interesting concept. With a couple of surgeries under my belt and slowly advancing in age, it would be reassuring to be able to worry less about something like changing a tire. What would you recommend for puncture-resistant tires? I keep hoping for something like Tweels to come out. ![]() ![]() ![]() The Tweel - terrible name for an interesting concept Fortunately, Frank, I think the ‘22 gas caps are out now with 1.9% financing. If your next scan turns up a code for a bad gas cap, you may just need a new one. When that light comes on, the computer stores a “fault code” that tells your mechanic why, so he knows where to look for your problem. If the check engine light comes on again, though, you’ll need to have the car scanned. If removing and replacing the gas cap turned off the warning lights, do your happy dance and keep driving. That’s why those other warning lights came on at the same time. Sometimes, when there’s a fuel system fault, the computer will also temporarily disable other systems - like your cruise control - to be safe. Once it lost enough pressure, the computer said “Leak!” and turned on your check engine light to alert you. So, if on your last trip to Bubba’s Tacos and Gas, Bubba was checking his GameStop stock while he was pumping and didn’t thread the gas cap correctly, that could cause your fuel system to slowly lose pressure. One of the most common causes of a pressure loss in the fuel system is also the simplest: a bad gas cap or one that wasn’t put on correctly. If it loses pressure, your car’s computer concludes - correctly - that there’s a leak somewhere, and it turns on your check engine light. The whole fuel system is kept under pressure. That traps gas fumes and keeps them from leaking into the atmosphere. And part of your emission controls is a sealed fuel system. One of the check engine light’s duties is to alert you when there’s a problem with your emissions system. And keep in mind, Frank, not much makes sense to me. ![]()
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