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![]() TM 5-2420-222-20-1 
ORGANIZATIONAL TROUBLESHOOTING CONTINUED 
MALFUNCTION 
TEST OR INSPECTION 
CORRECTIVE ACTION 
2. ENGINE CRANKS BUT FAILS TO START OR IS HARD TO START BELOW 32F (0C) 
Step 1. 
In extreme cold on loader backhoes equipped with engine coolant heater (7) check to make sure it 
is working by touching engine coolant heater hoses (8 and 9). Warm hoses (8 and 9) show that 
engine coolant heater is working. 
TA242720 
2-29 
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