Two problems related to manifold/header/muffler/tail pipe have been reported for the 2011 Chevrolet Malibu. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Malibu based on all problems reported for the 2011 Malibu.
It is noted that the exhaust manifold on the 3. 3 l four-cylinder engines for years have a cracked exhaust manifold there by leaching carbon monoxide into the cab interior of said automobiles. Parts of carbon monoxide have been noted to be 20 to 30 ppm when readings have been done.
The exhaust manifold cracked allowing exhaust gases into the passenger compartment.