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Toyota Corolla 1.6 VVT-i 3ZZ-FE (2001): Starter Removal, Disassembly and Repair

On the Corolla E120 with the 3ZZ-FE engine, the starter is mounted at the transmission end of the engine and comes out from below. The most common problems are burned solenoid contacts, worn brushes or a slipping starter drive. Before disassembly, make sure the starter itself is the cause and not the battery, a ground connection or the wiring.

Difficulty: Medium Time: 2-3 hours Steps: 14

Parts

4
№PartAlternatives
01 Starter solenoid (magnetic switch), Toyota Corolla 1.6 (3ZZ-FE) Denso, Bosch, Hitachi
02 Brush set with brush holder Denso, Bosch, Hitachi
03 One-way clutch (Bendix) with starter drive pinion Denso, Bosch, Hitachi
04 Armature shaft bushingsif worn

Tools

11
  • Socket set and ratchet with extensions
  • 10/12/14 mm wrenches
  • screwdrivers (flat-blade and Phillips)
  • a puller or a small drift for the shaft snap ring
  • snap ring pliers
  • multimeter
  • pliers
  • 60-100 W soldering iron (if the brushes are soldered)
  • grease for the starter drive and bushings
  • clean rags
  • bench vise
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes and 16 more. See manuals →

Step by step

14 steps
  1. Check the battery and terminals: the voltage under load while cranking should not drop below roughly 9.5-10 V. Make sure the engine and body ground connections are solid. If the starter clicks but does not turn, the most likely cause is the solenoid or the brushes. If it spins but does not engage the flywheel, the starter drive is at fault.
  2. Disconnect the negative battery terminal. Raise the car on a lift or support it on jack stands (if using a jack, always add safety stands). Remove the lower engine splash shield if it blocks access.
  3. Mark or photograph how the wires are connected to the starter. Remove the nut on the heavy power cable at solenoid terminal 30 and disconnect the cable. Then remove the connector or wire from control terminal 50. Do not lose the insulators and washers.
  4. Remove the two bolts that hold the starter to the transmission housing. If necessary, unbolt the wiring harness bracket or any mount that gets in the way of removing the starter. Support the starter, as it is heavy. Take it out downward or to the side, turning it slightly.
  5. Clean the dirt and oil off the starter. Clamp it in a vise with soft jaws and make alignment marks (with a marker or a center punch) on the housing, the front cover and the rear cover so you can reassemble it correctly.
  6. Remove the solenoid: disconnect the flexible jumper from the brush terminal (the nut on terminal C), remove the two or three mounting screws, then lift the solenoid and unhook the plunger from the drive lever. Check the contacts: heavy burning or pitting on the contact disc means you should replace the whole solenoid, and cleaning them is not recommended. Also check the solenoid windings for an open circuit with a multimeter.
  7. Remove the two through-bolts and take off the rear cover with the brush assembly. Remove it carefully so you do not lose the washers and shims on the shaft, and note their order.
  8. Inspect the brushes: if their length is below the wear limit (usually about 40% of new, which in most cases means less than 8-9 mm remaining) or they are chipped or cracked, replace them. Use a multimeter to check the brush holder springs and the insulation of the positive brushes from the housing. Replace the brushes as a set, soldering the new ones in place of the old ones if necessary, with good heat but without overheating the winding.
  9. Slide the stator housing off the armature. Inspect the commutator: if it has light wear and blackening, clean it with fine sandpaper (about 400-600 grit) or turn it on a lathe. Check the armature for shorts to ground and for turn-to-turn shorts. The insulation between the commutator segments (undercut) must not be worn down to the level of the segments.
  10. Starter drive replacement: remove the armature with the drive and lever from the front cover. Push the snap ring off the stop ring (slide a small drift onto the shaft and tap it to drive the stop ring down), remove the snap ring, then the stop ring and the starter drive. Install the new starter drive, fit a new snap ring in the groove and pull the stop ring over it. The drive must spin freely in one direction and lock in the other.
  11. Check the armature shaft bushings in the covers: if the shaft has noticeable play, replace the bushings. Lubricate the bushings, the shaft splines and the drive lever with a thin layer of starter grease. Do not get grease on the commutator, brushes or contacts.
  12. Reassemble in reverse order: drive lever, armature, stator housing aligned with the marks, rear cover with the brush assembly (guide the brushes onto the commutator, holding the springs back with a screwdriver), through-bolts, solenoid. Tighten the through-bolts evenly. Turn the shaft by hand: it should rotate freely without binding.
  13. Bench test: connect the starter to the battery with heavy cables (housing to negative, positive to terminal 30, and briefly touch the control wire to terminal 50). The pinion should extend and spin firmly, and the no-load current draw should be within a few tens of amps. Run it for no more than a few seconds at a time.
  14. Install the starter on the engine and tighten the two mounting bolts at the transmission housing to about 37-40 N·m (27-30 lb-ft) (check the exact value in the service manual for your engine). Tighten the power cable nut on terminal 30 to about 8-12 N·m (6-9 lb-ft), without overtightening. Reconnect the wires, refit the splash shield, reconnect the negative battery terminal and test the starting several times.

Common mistakes and warnings

  • Always disconnect the negative battery terminal before removing the starter, because the power cable on the starter is live at all times
  • Never work under a car supported only by a jack
  • If you are not confident in your ability to test the armature and commutator, it is more cost-effective to replace the starter as a complete unit or take it to an auto electrical shop for repair
  • Do not overtighten the through-bolts and mounting nuts, to avoid stripping threads or damaging the plastic terminal parts