TM 5-3805-290-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 1. Engine Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Visually check fuel tank for fuel (fuel
1. Add fuel if necessary (TM 5-3805-290-
17. Low Power/Poor or No
gage may be faulty).
10).
Response to Throttle -
2. If problem still exists, go to Test 4.
Continued.
4. Perform Fuel System Pressure Test
If problem still exists, go to Test 5.
5. Perform Fuel Quality Test (WP 0011
If problem still exists, go to Test 6.
6. Perform Air in Fuel System Test (WP
If problem still exists, go to Test 7.
7. Check for fuel supply lines that are
1. Replace or repair any restricted fuel
restricted.
lines (WP 0030 00, WP 0035 00, and
WP 0038 00) and replace fuel filters
(WP 0036 00).
2. If problem still exists, go to Test 8.
1. If solidified fuel is found, drain and fill
8. If temperature is below 32oF (0oC),
tank (WP 0166 00).
check for solidified fuel (wax) in tank.
2. If problem still exists, go to Test 9.
9. Check restriction indicator on air
1. If restriction is indicated, clean or
cleaner (TM 5-3805-290-10).
replace air cleaner elements (WP 0032
00), remove any blockages or
restrictions, and replace damaged air
inlet and exhaust system lines or hoses
(WP 0033 00 and WP 0041 00).
2. If problem still exists, go to Test 10.
10. Perform Cylinder Balance Test (WP
1. If there is no reduction in engine speed,
go to Test 14.
2. If problem still exists, go to Test 11.
11. Check valve lash (WP 0155 00).
1. If necessary, adjust valve lash.
2. If problem still exists, go to Test 12.
12. Perform Compression Test (WP 0010
1. If compression is low on one or more
cylinders, replace engine (WP 0145
00).
2. If compression is OK, go to Test 13.
13. Check fuel injector nozzles (WP 0163
1. If damaged, replace fuel injector
00).
nozzle(s).
2. If problem still exists, go to Test 14.
14. Inspect turbocharger, drain, bearings, 1. If necessary, replace turbocharger,
housing, and mounting bolts (WP 0165
tighten bolts, adjust wastegate, or
00).
unblock restricted drain.
2. If problem still exists, go to Test 15.
0008 00-13
