TM 55-1930-209-14&P-21
Table 5-1. Direct Support Maintenance Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check for defective fuel pump.
Repair or replace fuel pump (paras 5-37 thru 5-39).
4. Engine Produces Excessive Smoke Under Load
Step 1. Check for defective fuel injectors.
Repair or replace fuel injectors (paras 5-33 thru 5-35).
5. Engine Lacks Power
Step 1. Check for defective fuel pump.
Repair or replace fuel pump (paras 5-37 thru 5-39).
Step 2. Check for defective valves.
Repair or replace valves (paras 5-66 thru 5-67).
6. Engine Consumes an Excessive Amount of Fuel
Step 1. Check for fuel leaks.
Inspect fuel lines for leaks and repair as necessary.
Step 2. Check for defective fuel injectors.
Repair or replace fuel injectors (paras 5-33 thru 5-35).
Step 3. Check for faulty injector seals.
Replace injector seal (paras 5-33 thru 5-35).
7. Engine Does Not Receive a Sufficient Amount of Fuel
Step 1. Check for defective fuel pump.
Repair or replace fuel pump (paras 5-37 thru 5-39).
Step 2. Check for defective fuel injector.
Repair or replace fuel injector (paras 5-33 thru 5-35).
8. Engine Runs Hot
Step 1. Check for defective water pump.
Repair or replace water pump (paras 5-47 thru 5-49).
Step 2. Check for clogged cooling system.
Flush cooling system.
5-2
