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

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

Loaded with illustrations, instructions, photos, and diagrams, complete to service and repair your Mercury. Read and print pages, or copy the entire manual to your hard drive.

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.