Section 03 TROUBLESHOOTING
Subsection 01 (TROUBLESHOOTING CHART)
OTHER OBSERVATION POSSIBLE CAUSE REMEDY
Loose battery cable connections
Check/clean/tighten
Discharged/weak battery
Check/charge/replace
Restrictioninjetpump
Check/clean pump
Partial seizure in jet pump
Inspect, refer to PROPULSION SYSTEM
Partial engine hydro-lock
Check, refer to MAINTENANCE
Partial engine seizure
Check compression, refer to ENGINE
Worn starter
Check, refer to ELECTRICAL SYSTEM
Timing chain not guided by chain guide
(
4-TEC models
)
Check, refer to ENGINE BLOCK
subsection
Oil is too thick. Change oil viscosity
(
4-TEC models
)
Engine turns slowly
Outside temperature too low
Battery capacity is not sufficient for cold
temperature
Faulty component in the fuel injection
system
(
fuel injection models
)
Check for fault codes. Refer to
DIAGNOSTIC PROCEDURES in ENGINE
MANAGEMENT
Engine drowned mode is active
(
fuel injection models
)
Release throttle lever
Low battery voltage Recharge or replace battery
Check fuel pump pressure output
Check air/fuel rail (
DI models
)
Check fuel pump fuse
Low or no fuel pressure
(
fuel injection models
)
Check wiring harness
Check fuel injector operation. Replace as
necessary
Fuel injectors not working
(
fuel injection models
)
Check output signal from MPEM
Check air/fuel rail
Check air compressor system
Low or no air pressure (
DI models
)
Check RAVE valve system for leaks
Check direct injector operationDirect injector not working (
DI models
)
Check output signal from MPEM
No spark at the spark plug
Check spark plugs condition and replace
as necessary
Check ignition system and repairDefective MPEM or ECM
Replace MPEM or ECM (
as applicable
)
Engine turns over
Inverted spark plug cables
(
RFI and DI models
)
Reposition cables properly.
50 smr2004-Complete Line Up
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