Engine Exhaust System Problems of Chevrolet Cobalt

The contact owns a 2007 Chevrolet Cobalt. The contact stated that the vehicle emitted a fuel odor. A certified mechanic stated that the vehicle was leaking fuel onto the exhaust pipe. The certified mechanic also informed the contact that the axle fuel lines had severe corrosion. It was diagnosed that the axle fuel lines needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the issue. The approximate failure mileage was 90,000.

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I drove my car around 7:15 am until about 10:00 am. Everything was fine. When I started it up again I heard this loud noise coming from the engine. It sounded like a diesel truck. My flex pipe was disconnected. This attached to the manifold. I didn't hit anything to cause this problem. I asked the repair man what could have caused it and he didn't have an answer.

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Since beginning of 2011 the steering wheal starts shaking and vibrating when I start the car. In March 2011 I went to pepboys and they said it might be a problem with the motor. Beginning of April I started the car and a lot of white thick smoke came out of the exhaust emmission so I drove back to pepboys. They figured it might be a problem with the gasket or even gasket head which was the following week confirmed by the gm dealer. The is only 3 years old and has only 28000 miles!.

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Catalytic converter. Only three years old. So many bad gm can't supply new ones. Was told by three dealers they were back ordered and not available for maybe up to a month. Will not warranty mine because having to keep using vehicle for work I have exceeded the warranty mileage. Tried an after market one but mechanic said it would not work, so it seems only original gm will fit my car.

Exhaust - muffler - went to 3 different service places and the baffles in the muffler are bad and rattling around inside the muffler. None of the commercial service places are able to put a new muffler on as chevy has not released the muffler to my 2006 chevy Cobalt ss - called the dealership and they say it is not covered under my extended warranty - the car is only 3 years old and has not been in any accidents. Dealership does not stock this muffler and wants almost $550 just to replace the muffler. I will be looking for a new car and not a chevy!!.

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