Engine Cranks Over But Will Not Start Or Starts Hard; Electrical; Fuel System - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22

Engine Cranks Over But Will Not Start Or Starts Hard

Electrical

1. Battery, electrical connections,
2. Ignition switch
3. Glow plugs (if equipped) inoperative
4. Injection timing

Fuel System

1. Empty fuel tank
2. Fuel shut off valve closed (if equipped)
3. Anti-siphon valve stuck closed (if
4. Low grade, stale fuel or water in fuel
5. Fuel waxing or frozen water separator
6. Plugged fuel suction line or filter
7. Air leaks, suction side fuel line or water
8. Plugged or pinched fuel line (feed or
90-860074--1 FEBRUARY 2002
Cause
damaged wiring, Lanyard Stop Switch
Cause
equipped)
(cold weather)
separator
return)
Special Information
1. Ensure ECM 5 Amp. fuse in electrical
box is not defective (blown)
4. May crank over hard. Refer to
SECTION 5A, 5D, and/or 5E for EDI
diagnosis
Special Information
3. Restricting fuel supply
7. Sucks air into fuel system reducing
fuel volume
TROUBLESHOOTING
Page 1C-7