TM 5-3825-270-23&P
FIELD MAINTENANCE
EXCESSIVE ENGINE NOISE
INITIAL SETUP:
References (cont.)
Tools and Special Tools
Exhaust Manifold Replacement (WP 0129)
Tool Kit, General Mechanic's: Automotive
Engine Inlet Assembly Manifold Replacement
(WP 0225, Table 1, Item 12)
Field Level Preventive Maintenance Checks And
References
Services (PMCS) (WP 0069)
Air Cleaner Assembly Repair (WP 0170)
Water Distributor Operator Manual (TM
Alternator Belt Adjustment (WP 0079)
5-3825-270-10)
Alternator Belt Replacement (WP 0080)
Water Pump And Housing Replacement
Equipment Condition
Engine OFF. (TM 5-3825-270-10)
Cooling Fan Replacement (WP 0072)
Engine Compartment Cover Replacement
TROUBLESHOOTING PROCEDURE
EXCESSIVE ENGINE NOISE
STEP 1
Does engine have appropriate level of engine oil?
Check engine oil level. (WP 0069)
CONDITION/INDICATION
Does engine have appropriate level of engine oil?
DECISION
No - Fill or drain engine to appropriate level. (WP 0069) Verify problem is solved. (Step 7 - Does engine exhibit
excessive noise?)
Yes - Go to step 2. (Step 2 - Is air cleaner assembly free of debris and obstructions that may cause excessive
noise?)
STEP 2
Is air cleaner assembly free of debris and obstructions that may cause excessive noise?
1.
Remove air cleaner assembly. (WP 0170)
2.
Remove air filter. (TM 5-3825-270-10)
3.
Inspect air cleaner assembly for debris and obstructions that may cause excessive noise.
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