STARTER
Article Text
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:23PM
ARTICLE BEGINNING
1993 ELECTRICAL
Volkswagen Starters - Bosch
Volkswagen; Corrado SLC, Passat
DESCRIPTION
Starter is a brush type, series-wound electric motor with an
overrunning clutch. Field frame is enclosed by commutator end frame
and drive bushing, and carries pole shoes and field coils. A splined
armature shaft drive end carries drive assembly.
TROUBLE SHOOTING
NOTE: See TROUBLE SHOOTING - BASIC PROCEDURES article in
GENERAL INFORMATION.
ON-VEHICLE TESTING
STARTER DOES NOT CRANK ENGINE
1) Ensure battery is fully charged. Make sure electrical and
ground connections are clean and tight. With ignition switch in START
position, measure voltage at spade terminal of starter solenoid.
Reading should be at least 8 volts. If voltage is as specified, check
engine for mechanical problems. If voltage is not as specified, go to
next step.
2) Measure voltage at ignition switch. If reading is at least
8 volts, check wiring between ignition switch and starter solenoid. If
voltage is not as specified, replace ignition switch.
3) Measure voltage at field (starter) terminal of starter
solenoid. If reading is 8 volts or more, repair or replace starter. If
reading is less than 8 volts, replace starter solenoid.
NOTE: On vehicles with automatic transmission, also check
park/neutral switch.
STARTER CRANKS TOO SLOWLY
Ensure engine crankcase is filled with recommended viscosity
oil. Check charging system to ensure battery is fully charged. Make
sure electrical and ground connections are clean and tight. If starter
still turns slowly, repair or replace starter.
VOLTAGE DROP TEST
Starter Main Terminal
Connect a voltmeter between starter main terminal and starter
body. Disconnect ignition coil positive terminal and operate starter.
TROUBLE SHOOTING - BASIC PROCEDURES
Article Text (p. 47)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:26PMÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄStarter Will Not Faulty overrunning See STARTER article
Crank Engine clutch
Broken clutch housing See STARTER article
Broken flywheel teeth Replace flywheel and
check for starter pinion
gear damage
Armature shaft sheared See STARTER article
or reduction gear teeth
stripped
Weak battery Charge or replace
battery as necessary
Faulty solenoid See On-Vehicle Tests in
STARTER article
Poor grounds Check all ground
connections for
tight and clean
connections
Ignition switch faulty Adjust or replace
or misadjusted ignition switch as
necessary
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄStarter Cranks Battery weak or Charge or replace
Engine Slowly defective battery as necessary
Engine overheated See ENGINE COOLING
SYSTEM article
Engine oil too heavy Check that proper
viscosity oil
is used
Poor battery-to-starter Check that all
connections between
battery and starter are
clean and tight
Current draw too low or See Bench Tests in
too high STARTER article
Bent armature, loose pole See STARTER article
shoes screws or worn
bearings
Burned solenoid contacts Replace solenoid
