Nissan Pathfinder: Starting System - Starting System (Symptom Diagnosis). Starter Motor (Removal and Installation)

• Starting System (Symptom Diagnosis)
• Starter Motor (Removal and Installation)

Starting System (Symptom Diagnosis) Nissan Pathfinder

Symptom Table

Starter Motor (Removal and Installation) Nissan Pathfinder SUV

Exploded View

NOTE:

The "S" terminal nut is attached to the "S" terminal harness.

Removal and Installation

NOTE:

When removing components such as hoses, tubes/ lines, etc., cap or plug openings to prevent fluid from spilling.

REMOVAL

Disconnect battery terminal. Refer to Battery Disconnect.

Remove the air cleaner and air duct. Refer to Removal and Installation.

Disconnect the “S” terminal harness, and the “B” terminal harness and position harness aside.

Remove the starter motor bolts, then remove the starter motor.

INSTALLATION

Installation is in the reverse order of removal.

• Reset electronic systems as necessary. Refer to Special Repair Requirement.

Inspection and Adjustment

INSPECTION

MAGNETIC SWITCH

Remove starter motor from vehicle. Refer to Removal and Installation.

Connect 12V battery to starter motor as shown. Check that pinion gear (1) is driven out by magnetic switch.

• Replace starter motor if pinion gear is not driven out.

Disconnect "M" terminal as shown. Check that pinion gear (1) does not return to original position.

• Replace starter motor if pinion gear returns.

Disconnect (-) wire from starter motor body as shown. Check that pinion gear (1) returns to original position.

• Replace starter motor if pinion gear does not return.

PINION PROTRUSION LENGTH

Compare movement "L" in height of pinion gear (1) when it is pushed out with magnetic switch energized and when it is pulled out by hand until it touches stopper.

• Replace starter motor if the measurement value is not within specifications.

PINION CLUTCH

Check pinion gear teeth.

• Replace starter motor if teeth are worn or damaged. (Also check condition of ring gear teeth).

Check to see if pinion locks in one direction and rotates smoothly in the opposite direction.

• Replace starter motor if pinion is locked, rotates in both directions or unusual resistance is evident.

NO-LOAD TEST

Remove starter motor from vehicle. Refer to Removal and Installation.

Connect 12V battery and ammeter to starter motor as shown. Check no load current with pinion gear (1) driven out and starter motor operating.

• Replace starter motor if the measurement value is not within specifications.

Unit Disassembly and Assembly. Cylinder Block ++Transaxle & Transmission