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My 2006 G6 with a 2.4 engine had a catalytic converter issue. The catalytic converter internal melted & causes a 7.5 psi back pressure on the exhaust system. This caused the engine to loose power & use a large amount of fuel.
A new catalytic converter was fitted by the dealer. The service manager reported that my car was the 7th G6 that required a new catalytic converter. All units had melted & plugged up.
A new catalytic converter was fitted by the dealer. The service manager reported that my car was the 7th G6 that required a new catalytic converter. All units had melted & plugged up.