Excessive Exhaust Smoke - Dodge D250 1990 Service Manual

Troubleshooting Logic
Page9A-18
Base Engine Components
PODGE Turbo Diesel
Excessive Exhaust Smoke
Cause
Correction
Engine Running Too Cold (White
Refer to Troubleshooting Logic for
Coolant Temperature Below Normal.
Smoke) Inspect Intake Manifold Heater / KSB
Valve for Proper Operation.
OK
•
Inadequate Intake Air Inspect/Change Air Cleaner. Look for
Other Restrictions.
OK
Air Leak Between the Turbocharger
and the intake Manifold
Check/Correct Leaks in the Air
Crossover Tube, Hoses, Gaskets,
Mounting Capscrews or Through
Holes in the Manifold Cover.
OK
t
Exhaust Leak at the Manifold or
Turbocharger
Check/Correct Leaks in the Manifold
or Turbocharger Gaskets. Look for a
Cracked Manifold.
OK
•
Malfunctioning Turbocharger Inspect/Replace Turbocharger.
OK
*
More than One Sealing Washer Under
an Injector
Check and Remove Extra Washer.
OK
*
Malfunctioning Injectors
Check and Replace injectors.
OK
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