ZDX V6-3.7L (2010)
7. Check the commutator diameter with a digital caliper or dial type caliper. If the diameter is below the service limit, replace the armature.
8. Measure the commutator (A) runout.
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If the commutator runout is within the service limit, check the commutator for carbon dust or brass chips between the segments.
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If the commutator runout is not within the service limit, replace the armature.
