Mercury 3.0 MPI ECT User Manual

Section 6 - Troubleshooting
90-8M0113856 eng DECEMBER 2015 Page 87
Section 6 - Troubleshooting
Table of Contents
Troubleshooting Information and Charts Specifically for 3.0
MPI ECT............................................................................... 88
Diagnosing EFI Problems.............................................. 88
Engine Guardian System............................................... 88
Starter Motor Will Not Crank Engine, or Cranks Slowly.88
Engine Will Not Start or Is Hard to Start........................ 88
Engine Runs Rough, Misses, or Backfires.................... 89
Poor Performance..........................................................89
Troubleshooting Charts Specifically for 3.0 TKS.................. 89
Starter Motor Will Not Crank Engine, or Cranks Slow... 89
Engine Will Not Start or Is Hard to Start........................ 89
Engine Runs Rough, Misses, or Backfires.................... 90
Poor Performance..........................................................90
Troubleshooting Charts for 3.0 MPI ECT and 3.0 TKS........ 90
Excessive Engine Temperature..................................... 90
Insufficient Engine Temperature.................................... 91
Low Engine Oil Pressure............................................... 91
Battery Will Not Recharge............................................. 91
Remote Control Is Difficult to Move, Has Excessive Play,
or Makes Unusual Sounds.............................................91
Steering Wheel Jerks or Is Difficult to Turn................... 91
Power Trim Does Not Operate (Motor Does Not Operate)
....................................................................................... 91
Power Trim Does Not Operate (Motor Operates but
Sterndrive Unit Does Not Move).................................... 92
6

Mercury 3.0 MPI ECT Specifications

General

Brand	Mercury
Model	3.0 MPI ECT
Category	Outboard Motor
Language	English