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Mercury MerCruiser MCM 454 Mag MPI User Manual

Mercury MerCruiser MCM 454 Mag MPI
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TROUBLESHOOTING
SERVICE MANUAL NUMBER 23
Page 1C-11
90-861326--1 MARCH 1999
Engine Will Not Crank Over
Cause Special Information
Remote control lever not in neutral posi-
tion
Battery charge low; damaged wiring; loose
electrical connections
Circuit breaker tripped
Blown fuse
Ignition switch
Slave solenoid
Faulty neutral start safety switch Open circuit
Starter solenoid
Starter motor
Mechanical engine malfunction
Charging System Inoperative
Cause Special Information
Loose or broken serpentine belt
Engine rpm too low on initial start Rev engine to 1500 rpm
Loose or corroded electrical connections
Faulty battery gauge Best way to test is to replace gauge
Battery will not accept charge Low electrolyte or failed battery
Faulty alternator or regulator
Refer to SECTION 4C for complete
“Charging System” diagnosis procedures
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Mercury MerCruiser MCM 454 Mag MPI Specifications

General IconGeneral
BrandMercury
ModelMerCruiser MCM 454 Mag MPI
CategoryEngine
LanguageEnglish

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