Low Power Troubleshooting Chart - Detroit Diesel MBE4000 Service Information

17.2 LOW HORSEPOWER INTERVIEW
Possible causes of low power and symptoms are listed in Table 17-2.
Loss of
Possible Causes
Power
Fuel Filter Restriction
refer to section 17.1
Air in the Fuel
refer to section 17.3
Faulty Injector(s)
refer to section 17.1
Faulty Turbocharger
refer to section 17.1
EGR Valve
refer to section 17.1
EPV or Air Supply
Lines refer to section
17.1
Charge Air Cooler
Leak refer to section
17.5
Intake or Exhaust
Manifold Leak
refer to section 17.5
and section 17.6
Quality/Grade of
Fuel refer to section
17.1
Restricted Air Intake
refer to section 17.1
Crankcase Overfilled
refer to section 17.1
Faulty Fan Operation,
Always On
refer to section 17.1
Debris in Fuel Tank
- Air Vent Plugged
refer to section 17.1
Table 17-2

Low Power Troubleshooting Chart

17-12
From Bulletin 1–MBE 4000–07
Misfires Poor
Acceleration
X X
X X
X X
X —
X —
X —
X —
X —
X X
X —
X —
X —
X X
6SE412 0702 Copyright © 2007 DETROIT DIESEL CORPORATION
Symptoms
Erratic Engine
Idle Dies
X — X
X X —
X X X
X — —
X X —
X X —
X — —
X — —
X X —
X — —
X — —
X — —
X X X
(Rev. 2007) All information subject to change without notice.
Black Excessive
Smoke Oil
Con-
sumption
— —
— —
X —
X —
X —
X —
X —
X —
X —
X —
— X
— —
— —