ENGINE PRODUCES EXCESSIVE BLACK EXHAUST SMOKE

TM 10-3930-673-20-1

9. ENGINE PRODUCES EXCESSIVE BLACK EXHAUST SMOKE.

INITIAL SETUP

References

Tools and Special Tools

TM 10-3930-673-10

Tool Kit, General Mechanic's: Automotive

TM 9-4910-571-12&P

Equipment Condition

Engine running (TM 10-3930-673-10)

Parking brake on (TM 10-3930-673-10)

Wheels chocked (TM 10-3930-673-10)

START

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING on

None.

Visual inspection.

following page.

POSSIBLE PROBLEMS

REASON FOR QUESTION

Is gear range in use correct

Gear range for operation or load

This question eliminates possible

incorrect.

problems and determines where

for operation and load?

Air intake and/or exhaust blocked.

troubleshooting continues.

Air leak between intake manifold

and turbocharger.

Air leak between turbocharger and

exhaust manifold.

Turbocharger malfunctioning,

faulty.

If gear range too

high, shift to lower

gear.

YES

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