TM 5-3805-262-20
3-30. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE HARD TO START OR WILL NOT START (NO EXHAUST SMOKE) (Cont).
S t e p 2 . ( C o n t ).
Connect transducer cable W4 connector P1 to VTM J2.
Connect transducer cable W4 connector P2 to transducer connector.
Dial 50 into TEST SELECT.
Press and hold TEST until CAL appears on display then release TEST.
Wait for offset value to appear on display. Offset value should be
between -150 to +150. If it is not, STE/ICE is defective (refer to
TM 9-4910-571-12&P).
Press and release TEST.
Crank engine for 30 seconds using ignition key switch. Be sure to
return ignition key switch to off position after cranking.
Display should indicate 20 to 30 psi.
a. If display indicates 20 to 30 psi, disconnect transducer cable
W4 from transducer. Remove transducer and adapter from elbow
port. Reinstall plug in elbow port and go to step 3 below.
b. If display does not indicate 20 to 30 psi, disconnect transducer
cable W4 from transducer. Remove transducer and adapter from
elbow port. Reinstall plug in elbow port and go to page 3-244,
fuel system troubleshooting, MALFUNCTION 1.
Step 3. Check if there is wrong or contaminated fuel in fuel tank (contami-
nated fuel will have a milky white appearance).
a. If wrong or contaminated fuel in fuel tank, drain and clean fuel
t a n k ( p a g e 4 - 3 2 ) , r e p l a c e f u e l f i l t e r s ( p a g e 4 - 3 8 ) , a n d r e f i ll
w i t h c o r r e c t f u e l.
b. If fuel is okay, go to step 4 below.
Step 4.
Check for air in fuel system.
a.
Open bleed valve on first stage filter.
Tell assistant to turn ignition key switch to on position.
Close bleed valve when clear bubble free fuel appears. Tell as-
sistant to turn ignition key switch to off position.
Open bleed valve on second stage filter.
Tell assistant to turn ignition key switch to on position,
Close bleed valve when clear bubble free fuel appears. Tell
assistant to turn ignition key switch to off position.
Use clean cloth and wipe up any Diesel fuel spillage.
3-205
