John Deere 4.5L & 6.8L Level 4 Electronic Fuel System Technical Manual (CTM170)

John Deere 4.5L & 6.8L Level 4 Electronic Fuel System Technical Manual (CTM170 14MAY03)

This technical manual provides in-depth information on the electronic fuel system of John Deere 4.5L and 6.8L Level 4 engines. It includes safety guidelines, engine identification, fuel system diagnostics, repair procedures, and electronic control unit (ECU) troubleshooting to ensure efficient engine operation and maintenance.

File Format: PDF

Size: 6.50 MB

No. of pages: 661

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

Model Covers:

POWERTECH 4.5L & 6.8L Diesel Engines Level 4 Electronic Fuel Systems With Bosch VP44 Pump

📑 Table of Contents Overview:

General Information

• Engine model designation and serial number identification
• OEM engine option code labeling
• Fuel and lubricants specifications

Fuel System Repair and Adjustments

• Fuel filter replacement and servicing
• Bosch VP44 fuel injection pump removal and installation
• Fuel injection nozzle cleaning, testing, and adjustment

Electronic Engine Control

• ECU diagnostics and troubleshooting
• Sensor replacement and calibration
• CAN communication and electronic system overview

Diagnostics and Troubleshooting

• Fuel system pressure testing
• Engine misfire detection
• Excessive fuel consumption diagnostics

Trouble Code Analysis

• Diagnostic trouble codes (DTC) listing
• ECU error codes and resolution procedures
• Blink code retrieval and interpretation

Specifications

• Unified inch and metric torque values
• Sensor specifications for multiple engine applications
• Wiring diagrams for engine control systems

For complete service information, also see:

POWERTECH 4.5 L and 6.8 L Diesel Engines — Base Engine .......... CTM104
POWERTECH 4.5 L and 6.8 L Diesel Engines — Mechanical Fuel Systems .......... CTM207
Alternators and Starter Motors .......... CTM77
OEM Engine Accessories .......... CTM67 (English Only)

This John Deere 4.5L & 6.8L Electronic Fuel System Technical Manual is an essential resource for technicians, mechanics, and engine specialists, offering comprehensive diagnostics, repair instructions, and troubleshooting procedures for advanced fuel injection and electronic control systems.