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
4. Perform Air in Fuel System Test (WP
If problem still exists, go to Test 5.
12. Excessive White Smoke -
Continued.
5. 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 6.
1. Drain and fill tank (WP 0166 00).
6. If temperature is below 32oF (0oC),
check for solidified fuel (wax) in tank. 2. If problem still exists, go to Test 7.
7. Perform Cylinder Balance Test (WP
1. If there is no reduction in engine speed,
go to Test 10.
2. If all cylinders have been checked and
no problems were detected, go to Test
8.
8. Check valve lash (WP 0155 00).
1. Adjust valve lash as necessary.
2. If problem still exists, go to Test 9.
9. Perform Compression Test (WP 0010
1. If compression in one or more cylinders
is low, replace engine (WP 0145 00).
2. If compression is OK, but problem still
exists, go to Test 10.
10. Perform Fuel Injector Nozzle Test (WP 1. If nozzle(s) are damaged or defective,
0163 00).
replace them as necessary.
2. If problem still exists, go to Test 11.
11. Connect MSD and check for active
If active diagnostic codes exist, perform
diagnostic codes for engine pressure or Engine Temperature Sensor Open or Short
temperature sensors (WP 0006 00).
Circuit Test (WP 0013 00) or 5V Engine
Pressure Sensor Supply Circuit Test (WP
Refer to Troubleshooting With An Event
13. Elevated Idle.
Code, E441 (WP 0009 00).
Connect MSD and check for active
1. Troubleshoot any active codes before
14. Engine Speed Does Not
diagnostic codes using ET software (WP
continuing with this procedure. Refer
Change.
to Troubleshooting With a Diagnostic
Code (WP 0009 00).
2. If problem still exists, perform Set
Speed Circuit Test (WP 0013 00).
