The strong gas smell is occasional. This started about two years ago. The dealer could not find a thing when I reported it at the time of a service. At times I park the car and the area in front of engine has a strong smell of gas. Sometimes I can be driving and smell it through the vents. It can be very strong. At one friend's suggestion, I replaced the gas cap which did not make a difference. My fuel gauge's accuracy is unreliable at times. I can live with the fuel gauge inaccuracy, but the gas fumes may kill me. What do I replace next and next again?
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You need to find the source of the leak, not replace things unless you find a leaking component. look for cracked or seeping fuel lines. Visually check the fuel line connections and at the injectors, you should see deposits or coloration from the leaking fuel. I don't think it's related to the fuel gauge.
If the dealer didn't find a big gas leak, you may want to find an independent GM specialist who will. If the dealer didn't charge you labor time for checking, I don't think the mechanic was paid to check and didn't want to spend much time or energy on it. If you want the dealer to find it, bring it in for that purpose solely and pay for diagnostic time.
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Found a small reputable shop. Fair priced. They propose to change the fuel pressure regulator first. Could that or the mass airflow sensor someone else suggested as the issue also be the root of the unreliable fuel guage or is that altogether one of those drop the fuel tank jobs?
Found a small reputable shop. Fair priced. They propose to change the fuel pressure regulator first. Could that or the mass airflow sensor someone else suggested as the issue also be the root of the unreliable fuel guage or is that altogether one of those drop the fuel tank jobs?