MerCruiser 3.0 MPI User Manual

Section 7 - Troubleshooting
90-899883272 MARCH 2008 Page 97
Section 7 - Troubleshooting
Table of Contents
Diagnosing EFI Problems................................... 98
Engine Guardian System.................................... 98
Troubleshooting Charts...................................... 98
Starter Motor Will Not Crank Engine, or Cranks
Slowly............................................................98
Engine Will Not Start or Is Hard to Start........98
Engine Runs Rough, Misses, or Backfires....99
Poor Performance.........................................99
Excessive Engine Temperature....................99
Insufficient Engine Temperature...................99
Low Engine Oil Pressure.............................100
Battery Will Not Recharge...........................100
Remote Control Is Difficult to Move, Has
Excessive Play, or Makes Unusual Sounds
....................................................................100
Steering Wheel Jerks or Is Difficult to Turn
....................................................................100
Power Trim Does Not Operate (Motor Does Not
Operate)......................................................100
Power Trim Does Not Operate (Motor Operates
but Sterndrive Unit Does Not Move)...........101
7

MerCruiser 3.0 MPI Specifications

General

Horsepower	135 hp (101 kW)
Ignition	Electronic
Cylinders	4
Aspiration	Naturally Aspirated
Compression Ratio	9.3:1
Full Throttle RPM	4400-4800 RPM
Displacement	3.0L / 181 CID
Fuel System	Multi-Port Injection (MPI)
Bore x Stroke	4.00" x 3.60" (101.6mm x 91.4mm)
Fuel Requirement	87 Octane Minimum
Engine Type	Inline 4
Cooling System	Raw water
Alternator Output	65 amp