Mercury MERCRUISER - Battery will Not Recharge; Low Engine Oil Pressure; Power Trim Does Not Operate (Motor Does Not Operate); Remote Control Is Difficult to Move, Has Excessive Play, or Makes Unusual Sounds

Section 7 - Troubleshooting
Page 118 90-864197076 NOVEMBER 2008
Low Engine Oil Pressure
Possible Cause Remedy
Insufficient oil in crankcase. Check and add oil.
Excessive oil in crankcase (causing it to
become aerated).
Check and remove required amount of oil. Check for cause of excessive oil
(improper filling).
Diluted or improper viscosity oil.
Change oil and oil filter, using correct grade and viscosity oil. Determine cause
for dilution (excessive idling).
Battery Will Not Recharge
Possible Cause Remedy
Excessive current draw from battery. Turn off non‑essential accessories.
Alternator drive belt loose or in poor condition. Replace and/or adjust.
Unacceptable battery condition. Test battery, replace if necessary.
Loose or dirty electrical connections or damaged
wiring.
Check all associated electrical connections and wires (especially
battery cables). Clean and tighten faulty connections. Repair or replace
damaged wiring.
Faulty alternator Test alternator output, replace if necessary.
Remote Control Is Difficult to Move, Has Excessive Play, or Makes Unusual Sounds
Possible Cause Remedy
Insufficient lubrication on shift and throttle linkage
fasteners.
Lubricate.
Obstruction in shift or throttle linkages. Remove obstruction.
Loose or missing shift and throttle linkages.
Check all throttle linkages. If any are loose or missing, see authorized
Mercury MerCruiser dealer immediately.
Shift or throttle cable kinked.
Straighten cable or have authorized Mercury MerCruiser dealer
replace cable if damaged beyond repair.
Steering Wheel Jerks or Is Difficult to Turn
Possible Cause Remedy
Low power steering pump fluid level. Check for leak. Refill system with fluid.
Drive belt loose or in poor condition. Replace and/or adjust.
Insufficient lubrication on steering components. Lubricate.
Loose or missing steering fasteners or parts.
Check all parts and fasteners if any are loose or missing, see authorized
Mercury MerCruiser dealer immediately.
Contaminated power steering fluid. See authorized Mercury MerCruiser dealer.
Power Trim Does Not Operate (Motor Does Not Operate)
Possible Cause
Remedy
Blown fuse.
Replace fuse. Fuses may be located near the dash trim switch, at the trim pump, in the positive
(red) power trim battery lead near the battery switch, or a combination of these.
Loose or dirty electrical
connections or damaged
wiring.
Check all associated electrical connections and wires (especially battery cables). Clean and
tighten faulty connection. Repair or replace wiring.