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Toyota 4Runner Most Common Problems (All Years)

78
brake caliper
38
CV joint / axle / half shaft
36
wheel bearing / hub
30
damper / shock absorber
28
CV boot
23
alternator
23
radiator
20
end link or bushing for stabilizer bar
19
oxygen sensor
19
power door lock actuator / solenoid
19
water pump
15
strut (suspension)
13
fuel cap / gas cap
12
trunk or tailgate struts
11
valve cover gasket
10
head gasket
9
axle seal / output seal
9
muffler or resonator
9
tie-rod / tie-rod end
8
exhaust flex pipe / mid pipe / tail pipe
 
8   16   24   32   40   48   56   64   72   80  
Chart is based on 1406 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.