When I turn into my parking lot, I have to go up a little hump and when I do, the hatch makes a thump noise. I think it is because the car is getting a force applied diagionally across the chassis causing the hatch to shift a little. This seems to be the only time I get a thump noise.

It has been good for 3 weeks now. The solenoid they replaced must have fixed it.

Thanks for all the feed back... It's been a week now and no check engine light. Hopefully, it's a good fix.

Thanks for the feed back...The car is still at the dealer, so, the jury is still out on the positive fix...I'll report back in a week if the CEL hasn't come on.

I had the check engine light come on one day after I started a drove my Vibe for about 5 miles. The dealer checked it and said the gas cap was loose. (it was the first thing I checked) Of course, the light came on again the next day after the second start of the day. Now, they say it is a leak in my...