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Chevrolet Impala Most Common Problems (All Years)

42
wheel bearing / hub
16
tie-rod / tie-rod end
13
blend door motor for HVAC
13
muffler or resonator
13
water pump
11
strut (suspension)
10
end link or bushing for stabilizer bar
10
evap solenoid / purge valve / vent valve
9
oil pressure sensor
8
intake manifold gasket
8
starter
7
exhaust flex pipe / mid pipe / tail pipe
7
stabilizer bar (sway bar), entire unit replaced
6
catalytic converter
6
control arm / tension strut / thrust arm / lateral link
6
CV joint / axle / half shaft
6
head gasket
6
ignition switch / key cylinder
6
oil pan seal / gasket
6
power steering pump
 
5   10   15   20   25   30   35   40   45   50  
Chart is based on 421 vehicles in TrueDelta's reliability survey.
These are the problems owners most commonly reported on TrueDelta's Car Reliability Survey. For many models not all entries have been coded yet, so focus on the relative numbers rather than the absolute numbers. Usually when people say "they all have this problem," the problem in question actually affects between 10 percent and 20 percent of all cars. We aren't counting wear items like brake pads and rotors that truly do require periodic replacement on all cars.