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Page Title:
ENGINE PRODUCES EXCESSIVE NOISE - continued |
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 TM 10-3930-673-20-1
10. ENGINE PRODUCES EXCESSIVE NOISE (CONT).
2
KNOWN INFO
TEST OPTIONS
Drive belt and tensioner OK.
Visual inspection.
Are the air intake and/or
POSSIBLE PROBLEMS
REASON FOR QUESTION
exhaust free from
Air intake and/or exhaust blocked.
If air intake and/or exhaust
obstructions and/or
Turbocharger malfunctioning,
blocked, engine will produce
restrictions?
faulty.
excessive noise.
Clean air intake
and/or exhaust as
NO
necessary (Para 5-5,
Para 5-4, Para 6-3).
YES
3
KNOWN INFO
TEST OPTIONS
Drive belt and tensioner OK.
Visual inspection.
Is turbocharger functioning
Air intake and exhaust OK.
REASON FOR QUESTION
correctly?
POSSIBLE PROBLEMS
If turbocharger malfunctioning or
Turbocharger malfunctioning,
faulty, turbocharger will produce
faulty.
additional noise.
Replace malfunctioning
NO
or faulty turbocharger
(Para 5-6).
YES
Notify Direct Support of
this fault.
2-664
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