After driving the Vibe for a few minutes, I heard a huge noise like metal on concrete in the rear. It happened once every time I drove it.I took it to the dealer, they heard the noise. The gave me a rental becuase they couldn't find the cause. They had a guy lay in the back to idenify source. They pulled the car apart, and found nothing. They figured it must be the gas tank. They replaced the gas cap and the sound went away. They described the issue of improper seal when gas tank reached optimal pressurization.After I got the new gas cap I was good for weeks, but I just heard the sound again.Anyone else ever have a similar issue?
I have experienced that personally . . . but nothing to do with the Vibe.
2009 Vibe 1.8L Carbon Gray AT Power Pkg 1/12/092003 Vibe 1.8L Neptune AT Mono Power Pkg 1/27/03 [sold 2/2/09]2007 T&C SWB 7/31/07 "Broke people stay broke by living like they're rich. Rich people stay rich by living like they're broke."
Check to see if the spare tire compartment and the little one behind the rear seat are locked. I've left the spare tire compartment unlocked before and it does sound weird when you hit a bump and the cover bounces open!Also check to see if the exhaust is attached properly to it's hangers!
05 Matrix XR 4WD and 03 Vibe GT
"If you want Government to solve your problems, then you are the problem!" BMSR
Trix MODS: SRI w/ AEM filter, Vibrant/Magnaflow Cat-back, Alutec Lightweight Crank Pulley
GT MODS: Cosmo SRI, DRL, Auto Stop
They are on the right track, but now they may look at the fuel pump or the pump pressurizing the tank / purge system etc. Friend of mine just went through this same issue with her new VW Golf, the internal pump was over pressurizing the system...
Thanks for response. Your description of the pump pressurizing the tank / purge system over-pressurizing the system sound exactly like what is happening.To everyone else - thanks for the laughs!