Took car for smog test at AZ test station......failed for faulty gas cap. Purchased a new cap which passed inspection. After a fuel stop, the new cap felt loose and fuel gauge showed empty. Fiddled with cap and finally got a seal. That lasted about 6 months and again, the problem appeared. Another new gas cap.....with similar results. Now on fourth gas cap and the problem has again appeared. The cap will not create a seal and I'm getting pretty frustrated.
I've heard there is a service bulletin on this but the Chevrolet dealer claims ignorance. I'm tired of resetting the check engine light and replacing gas caps.......what is the solution?
EVERY OCTOBER FOR THE PAST 3 YEARS. SEEMED RESULTS ALWAYS IN FUEL INJECTION.COSTLY REPAIRS...
Happened 3x after putting gas. The service light comes on and the fuel level reads empty. I have taken it to a Chevy dealer, and they say there is a Chevrolet Bulletin about the problem. The service manager said the car's computer needed to be flashed. However, a few days later the same problem happened again after a fill-up.