In a recent post, Consumer Reports lists the top 11 models from the past ten years or so that stand out as “having the most severe problems, as determined by frequency and cost,” with the last two models listed tied for 10th place. The list ranks the models in terms of the problem rate, with the top of the list exhibiting the highest problem rate among vehicles listed, and the bottom of the list with the lowest problem rate among vehicles listed.
The 2011 Chevy Equinox and GMC Terrain crossovers were lumped together in eighth place in the latest Consumer Reports list. The organization also includes the 2012 model year in the same listing, with the typical mileage range when the problems occurred listed between 86,000 miles and 124,000 miles.
Notably, Consumer Reports included the 2010 Chevy Equinox and GMC Terrain as two models likely to require an engine rebuild in the organization’s list published last year, as well.
At the top of the list is the 2014 Kia Optima sedan. Beyond the Chevy Equinox and GMC Terrain, no other General Motors vehicles were included in the Consumer Reports list. Notably, the 2015 Ford Mustang is listed just below the two GM crossovers, specifically Mustang models equipped with the four-cylinder engine.
The Consumer Reports list is based on data on older models pulled from the Consumer Reports Annual Autos Surveys, with a look at which models had the highest problem rates.
“Engine failure can be caused by many things,” said Consumer Reports’ chief mechanic, John Ibbotson. “Some engine rebuilds are needed due to low compression from worn piston rings, resulting in lack of power, misfiring, or excessive oil consumption, while others suffer from crankshaft or connecting rod bearing failure, signaled by a knocking sound.”
As the organization points out, repair shops will often replace an engine outright rather than rebuild.