Detroit MBE 900 DDEC VI Engine Troubleshooting Manual

Covers: Detroit MBE 900 EPA07 DDEC VI Engine Troubleshooting
Pages: 663
Format: PDF
File size: 29mb
Works with: Windows/Mac/Tablet
Notes: Bookmarked, searchable, printable, instant download

This troubleshooting manual download contains trouble code descriptions and diagnostics for Detroit MBE 900 EPA07 engines with DDEC VI controls. Included in the manual are detailed illustrations and procedures as recommended by Detroit Diesel. The first half of the manual contains engine mechanical troubleshooting procedures. The second half contains instructions for troubleshooting the DDEC electronic controls.

Covers troubleshooting only. Service Manual & Aftertreatment Troubleshooting Manual sold separately.

Topics:

EPA07 MBE 900 DDEC VI Troubleshooting

Introduction
Overview
Scope and Use of This Guide
Safety Precautions

Tests
Crankcase Pressure Test
Compression Pressure Test

Fuel Injection
General Fuel System Information and Troubleshooting
Test #1 Downstream Pressure Test
Test #2 Flow Test — At Fuel Injector
Test #3 Flow Test — At Fuel Filter
Test #4 Upstream Pressure Test
Test #5 Leak Test

Misfiring Cylinder
Poor Vehicle Ground
Aerated Fuel
Improper Valve Clearance, Worn or Damaged Camshaft Lobes and Rollers
Faulty Fuel Nozzle/Unit Pump
Faulty MCM
Worn or Damaged Valve or Cylinder Kit

Starting Difficulty (Engine Rotates)
MCM Wiring Harness
Empty Fuel Tank
Low Battery Voltage
Corroded or Damaged Battery Terminals
Defective Magnetic Switch
Defective Starter
Low Cranking Speed
Fuel Supply Valve
Plugged Fuel Filter(S)
Fuel Pump
Aerated Fuel
Restrictive Air Filter
Low Compression
Extended Crank Time

No Start (Engine Will Not Rotate)
Discharged Battery
Defective Magnetic Switch
Defective Starter
Internal Engine Damage

Excessive Oil Consumption
Miscalibrated Dipstick
External Oil Leaks
Leaking Oil Heat Exchanger
Defective Air Compressor
Defective Turbocharger
Worn or Damaged Valve or Cylinder Kit

Excessive Crankcase Pressure
Obstruction or Damage to Cylinder Head Cover Breather
Defective Air Compressor
Defective Turbocharger
Worn or Damaged Valve or Cylinder Kit

Excessive Exhaust Smoke (Black or Gray)
Restricted Air Cleaner Element
Restricted or Cracked Charge Air Cooler
Faulty Air Intake Manifold Gasket
Faulty Exhaust System
Aerated Fuel
Faulty Fuel Nozzle
Defective Turbocharger
Improper Grade of Fuel
Faulty EGR Valve
Incorrectly Adjusted Exhaust Brake Valve
Faulty Exhaust Brake Valve
Faulty Exhaust Brake Cylinder
Faulty Constant Throttle Valve Solenoid
Improper Valve Clearance, Worn or Damaged Camshaft Lobes and Rollers
Low Compression

Excessive Blue Smoke
Miscalibrated Dipstick
Improper Grade of Lubricating Oil
Defective Turbocharger
Worn or Damaged Intake/Exhaust Valve or Cylinder Kit

Excessive White Smoke
Faulty MCM
Faulty Turbocharger Boost Sensor
Malfunctioning Air Intake (Grid) Preheater
Defective Fuel Pump
Aerated Fuel
Improper Grade of Fuel
Faulty Turbocharger Control Unit
Restricted or Cracked Charge Air Cooler
Faulty Fuel Injection
Improper Valve Clearance, Worn or Damaged Camshaft Lobes and Rollers
Low Cylinder Compression

Rough Running or Stalling
Low Battery Voltage
Aerated Fuel
Insufficient Fuel Flow

Lack of Power
Aerated Fuel
High Fuel Pressure
Faulty Overflow Valve
High Fuel Temperature Return
Restricted Air Cleaner Element
Restricted or Cracked Charge Air Cooler
Faulty Air Intake Manifold Gasket
Faulty Exhaust System
High Inlet Air Temperature
Incorrect Camshaft Timing

High Engine Coolant Temperature

Low Oil Pressure

Low Coolant Temperature

DDEC VI System
DDEC VI System–How It Works
Motor Control Module
Common Powertrain Controller
Wires and Wiring
Conduit and Loom
Tape and Taping
Sensors
Instrument Panel Lamps

SPN/FMI Code Troubleshooting (click link for full list)
Detroit MBE 900 DDEC VI Engine Fault Codes

6SE580