Section 02 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
ENGINE CANNOT REACH MAXIMUM RPM
OTHER OBSERVATION
POSSIBLE CAUSE
REMEDY
Low fuel pressure
Check fuel pump pressure output
Jet pump related problem
Check propulsion components. Refer to
JET PUMP
Limp home mode activated
Refer to ENGINE MANAGEMENT
Exhaust system blockage/muffler
damage
Check and repair
Exhaust gases in bilge (leak)
Check exhaust system for leaks
Defective supercharger
Check/repair, refer to the
1503 4-TEC
ENGINE SHOP MANUAL
Battery voltage is too low
Check/repair, refer to CHARGING
SYSTEM
ENGINE RUNS TOO FAST (VEHICLE CANNOT REACH ITS TOP SPEED)
OTHER OBSERVATION
POSSIBLE CAUSE
REMEDY
Faulty rev limiter
Check, refer to ENGINE MANAGEMENT
Improper impeller pitch (too low)
Check/replace, refer to PROPULSION
SYSTEM
Engine RPM too high
Damaged impeller
Replace impeller. Refer to PROPULSION
SYSTEM
Damaged leading or trailing edge of
impeller
Check/replace
NOTE:
Leading edge damage contributes
to poor performance from start. Trailing
edge damage contributes to poor top
performance and stator vanes erosion.
Jet pump cavitation
Sealing of ride plate, jet pump support or
jet pump
Check/reseal, refer to section
PROPULSION SYSTEM or HULL/BODY
smr2005-006
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