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Starters: Diagnosis Kia Sephia II

Starter 1 illustration ~341 words

TROUBLE SHOOTING

Note. See TROUBLE SHOOTING article in GENERAL INFORMATION.

ON-VEHICLE TESTING

Note. Before testing, ensure battery is fully charged, battery cables and terminals are clean and tight, and engine grounds are okay.

CIRCUIT TEST

  1. If starter does not operate, check voltage at starter solenoid "S" terminal with ignition switch in START position, transmission in Park or Neutral (A/T) or clutch depressed (M/T). (Scheme 3) If battery voltage is present, replace starter. If battery voltage is not present, check ignition switch, transmission range switch (A/T), clutch pedal position switch (M/T) and wiring.
  2. If starter motor runs and engine does not crank, remove starter for visual inspection and testing. Inspect flywheel and ring gear for damaged or missing teeth.

Scheme 3

Scheme 3
Scheme 3

ARMATURE TEST

  1. Using ohmmeter, check continuity between commutator and core. If continuity is present, replace armature. Check for continuity between commutator and shaft. If continuity is present, replace armature.
  2. Place armature on "V" blocks. Using a dial indicator, measure runout. Normal runout is .002" (.05 mm). Maximum runout is .016" (.4 mm). If runout is not within specification, grind or replace armature.
  3. Wipe commutator clean. Measure armature outer diameter. Grind limit is 1.22" (31 mm). If commutator is at, or less than, grind limit, replace armature. Check depth of mold between segments. Normal depth is .02-.03" (.5-.8 mm). Minimum depth is .008" (.2 mm). Replace armature if depth of mold is at, or less than, minimum.

FIELD COIL TEST

Using ohmmeter, check for continuity between starter solenoid "M" terminal wire and brushes. If continuity is not present, replace field coil assembly. Check for continuity between "M" terminal wire and field coil. If continuity is present, replace field coil assembly. Check field coil for looseness. If field coil is loose, replace field coil assembly.

SOLENOID TEST

Using ohmmeter, check for continuity between starter solenoid "S" and "M" terminals. (Scheme 3) Check for continuity between "S" terminal and solenoid body. If no continuity is present, replace solenoid. Check for continuity between "M" and "B" terminals. If continuity is present, replace solenoid.

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