Table 1. Engine Troubleshooting Procedures - continued

TM 9-2320-361-24-1

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MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)

Table 1. Engine Troubleshooting Procedures (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Check for air cleaner restrictions

1. If red appears at indicator

12. EXCESSIVE FUEL

and air cleaner indicator.

window, inspect air intake for

CONSUMPTION;

restrictions. If restrictions are

EXHAUST COLOR BLUE

not present, replace air cleaner

AND/OR EXCESSIVE

element (WP 0052 00).

SMOKE

2. Reset air cleaner indicator

(TM 9-2320-361-10).

2. Inspect fuel lines, hoses, and

1. Tighten any loose connections.

connections for leaks and

2. Repair or replace damaged

damage.

components.

If fuel is present in oil, remove fuel

3. Inspect engine oil for presence

pump, drain system, and replace

of fuel.

fuel pump (WP 0061 00).

Table 2. Exhaust System Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

NOTE

1. EXHAUST COLOR BLUE

DURING NORMAL

Blue exhaust indicates excess

OPERATION

engine oil in cylinder combustion

space.

If oil grade is incorrect, replace oil

1. Check that engine oil grade is

(WP 0020 00) and oil filters

correct for vehicle use and

(WP 0044 00).

climatic conditions (WP 0020 00).

If fuel grade is incorrect, drain

2. Check that engine fuel grade is

complete fuel system and replace

correct for vehicle use and

with correct grade of fuel

climatic conditions

(TM 9-2320-361-10).

3. Inspect turbocharger for oil leaks

If oil leaks are found, replace

into engine air intake or exhaust

turbocharger (WP 0057 00).

system.

4. Perform compression test

Replace defective components

(WP 0008 00, table 1,

identified by compression test.

malfunction 11).

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