gas smell

I have an 03 trailblazer, straight 6. A couple of times lately when I started it up, I got a strong gas smell inside the car. I brought it to the dealership ( still under warrenty) and they could not find anything. Has anybody had a problem like this? FEB

I Have had this problem on my Z28. The problem was a leak in the fuel line. check the lines at first. you don't won't to burn your TB I guess...