ZDX V6-3.7L (2010)
15. If the starter drive gear is worn or damaged, replace the overrunning clutch assembly; the gear is not available separately. Check the condition of
the idler gear and the torque converter ring gear. Replace it if the starter drive gear teeth are damaged.
Starter Brush Inspection
16. Measure the brush length. If it is shorter than the service limit, replace the brush holder assembly.
Starter Brush Holder Test
17. Check for continuity between the (+) brush holders (A) and the (-) brush holders (B). If there is continuity, replace the brush holder assembly.
Brush Spring Inspection
18. Insert the brush (A) into the brush holder, and bring the brush into contact with the commutator, then attach a spring scale (B) to the spring (C).
Measure the spring tension at the moment the spring lifts off the brush. If it is not within the standard, replace the brush holder assembly.
