A Series Diesel Engine Troubleshooting Logic 27
Low Power (Continued)
Cause
Correction
Inadequate, or High or Low
Temperature Intake Air
Inspect/Replace Air Cleaner Element.
Look for Other Restrictions.
Refer to Page 112
OK
If the vehicle is equipped with a Valve to
Switch the Intake Source from Under the
Hood to Outside, Position the Valve for the
Season.
Coolant Passage in the After Cooler
Plugged.
High Pressure Fuel Leak
Inspect/Correct Leaks in the High
Pressure Lines, Fittings Injector Sealing
Washers or Delivery Valve Seals. Refer to
Page 78
OK
Inadequate Fuel Supply
Check the Flow Through the Filter to
Locate the Source of the Restriction.
Refer to Page 68
OK
High Fuel Temperature
Check for a Restricted Fuel Drain Manifold
(Robert Bosch VE)
OK
If Low Power is Intermittent,
Restricted Fuel Drain Manifold
Check/Correct Restriction.
Refer to Page 81
OK
Poor Quality Fuel
Verify by Operating From a Temporary
Tank With Good Fuel.
OK
(Continued)
To Next Page
Loading...
