Passport EX 4WD V6-3165cc 3.2L DOHC MFI (2001)
Measure runout of the commutator with a dial gauge. Repair or replace, if it exceeds the limit.
Polish the commutator surface with sandpaper #500 to #600 if it is rough.
Measure the depth of insulator in commutator. Replace, if it is below the limit.