Mercury MerCruiser D2.8L D-Tronic Service Manual page 644

EDI DIAGNOSIS
Troubleshooting Charts (Continued)
CONDITION
ENGINE WILL
NOT CRANK OR
CRANKS
SLOWLY
Page 5E-76
POSSIBLE CAUSES
1. Starting motor operating, but
not cranking the engine.
2. Crankshaft rotation
restricted.
3. Starting circuit connections
loose or corroded.
4. Neutral safety switch or
starter relay inoperative.
5. Battery charge low.
6. No voltage to starter
solenoid.
7. Solenoid or starter motor
inoperative.
SERVICE MANUAL NUMBER 22
CORRECTION
1. Remove the starter motor.
Check for broken flywheel
teeth or a broken starting
motor spring.
2. Rotate the engine to check
for rotational resistance.
3. Clean and tighten
connections. Reapply Liquid
Neoprene, when required.
4. Check starter relay supply
voltage and proper operation
of neutral safety switch (if
equipped). Replace defective
parts.
5. Check battery voltage.
Replace battery if a charge
cannot be held.
6. Check voltage to solenoid. If
necessary, replace the
solenoid.
7. Replace starter motor.
90-860074--1 FEBRUARY 2002