Mercury Mercruiser Marine Engines D-Tronic 7.3L Diesel 1998 1999 2000 2001 2002 Factory Service Repair Manual + Wirings

Mercury Mercruiser Marine Engines D-Tronic 7.3L Diesel 1998 1999 2000 2001 2002 Factory Service Repair Manual + Wirings

Loaded with illustrations, instructions, photos, and diagrams, complete to service and repair your Mercury. 

631  Pages

MODEL YEAR

1998, 1999, 2000, 2001, 2002

MODELS COVER:

D-Tronic 7.3L Diesel

MANUAL COVERS:

– Important Information

– Removal and Installation

– Engine

– Electrical Systems

– Wiring Diagrams

– Fuel System

– Cooling System

– Intake and Exhaust System

– Drive System

– Power Steering System

This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.

 Language: English 
Format: PDF

COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS 
(WINDOWS 11, WINDOWS 10, WINDOWS 8 ETC.) 

Windows/Mac/Tablet/Phone Friendly

• Engine type: V8.
• Displacement: 7.3L (444 cubic inches).
• Aspiration: Turbocharged and intercooled.
• Horsepower: Ratings varied by year and specific model.
  • 1998: 225 hp.
  • 1999–2000: 235 hp.
  • 2001–2002: Some configurations were rated at up to 270 hp.
  • High-output (HO) models were available, with some configurations reaching 300 hp.
• Fuel system: Electronically controlled direct injection using a HEUI (Hydraulic Electronic Unit Injection) fuel system.
• Cooling system: Fresh-water (closed-circuit) cooling with a heat exchanger to protect the engine from corrosion.
• Drive compatibility: Paired with heavy-duty Bravo series sterndrives or used in MIE (inboard) applications. 

• D-Tronic system: The D-Tronic system provided electronic control over the fuel injection, helping to improve performance and fuel efficiency.
• V8 configuration: The V8 layout provided high torque output, which was suitable for larger cruisers and heavier boats.
• Reliable base: The Navistar T444E block was known for its durability in automotive applications. 

• Aging components: The engines are now over two decades old, making it difficult to find quality replacement parts.
• Marine application: Marine engines often experience harder use than their automotive counterparts. Some anecdotal evidence suggests that the 7.3L had mixed reliability in marine applications, and parts can be difficult to source.
• Specific marine issues: Owners have reported issues with hoses blowing off the turbo and cooler, as well as hard starting after a warm shutdown, which may indicate fuel system issues.
• Fuel system: The HEUI injectors and related fuel system components were complex for their time, and issues with this system were not uncommon.