Dodge RAM TRUCK 1500 1995 Service Manual page 1191

B R
GENERAL DIAGNOSIS—DIESEL ENGINE 14 -109
FRONT OF ENGINE
AIR TEMPERATURE
SENSOR
SENSOR
ELECTRICAL
CONNECTOR
INTAKE
MANIFOLD
P U E L
(UPPER HALF)
S H U J D O W N
SOLENOID
SOLENOID ELECTRICAL
CONNECTOR
J9414-93
Fig. 25 Fuel Shutdown Solenoid Electrical
Connector
(2) Remove the clamp bolt retaining the fuel drain
manifold line to the cylinder head (Fig. 20).
(3) Remove the rear banjo fitting bolt at the inlet
line (Fig. 20).
(4) Position the fuel drain manifold line (Fig. 20) to
the rear.
(5) Install and tighten special adapter tool 6836
into the top of the fuel inlet line (Fig. 26).
(6) Connect a temporary rubber fuel hose to
adapter 6836 (Fig. 26).
TEMPORARY
RUBBER
HOSE
GRADUATED
J9514-75 CONTAINER
(7) Place the other end of this temporary hose into
a graduated container (Fig. 26).
(8) Crank the engine for 30 seconds. Measure the
fuel volume in the container after 30 seconds of en­
gine cranking time. Do not crank the engine for
more than 30 seconds at a time. Starter motor
damage may result.
(9) To determine the correct fuel volume, refer to
figure 27—Fuel Volume Specification. To use the
chart in figure 27, refer to the following procedure:
• Draw a straight vertical line at the measured rpm.
• Draw a straight horizontal line at the measured
fuel volume.
• If these two lines intersect below the flow line
(Fig. 27), this indicates a defective transfer pump or
a line restriction.
• If these two lines intersect above the flow line
(Fig. 27), this indicates acceptable fuel flow.
c
o
Ji
o
CO
£
i
m
ml
625
600
575
550
525
500
475
450
425
400
375
350
325
300
275
FLOW LINE
/
/
/
J
/
<
/
k~ —
>
\
Vfciximui
n Restric :tion —-
(oz)
21.2
20.3
19.5
18.6
17.8
16.9
16.1
15.3
14.4
13.6
12.7
11.9
11.0
10.2
9.3
Fig. 26 Performing Fuel Volume Test
200 225 250 275 300 400
Engine Cranking Speed (RPM) J9414-110
Fig. 27 Fuel Volume Specifications
HIGH-PRESSURE FUEL LINE LEAK TEST
High-pressure fuel line leaks can cause starting
problems and poor engine performance.
WARNING: DO TO E X T R E M E F U E L P R E S S U R E S OF
UP TO 120,000 K P A (17,400 PSI), U S E E X T R E M E
CAUTION W H E N INSPECTING FOR HIGH-PRES­
S U R E F U E L L E A K S . DO NOT G E T YOUR HAND
NEAR A S U S P E C T E D LEAK. INSPECT FOR HIGH-
P R E S S U R E F U E L L E A K S WITH A S H E E T OF CARD­
BOARD. HIGH F U E L INJECTION P R E S S U R E CAN
C A U S E P E R S O N A L INJURY IF CONTACT IS MADE
WITH THE SKIN.
Start the engine. Move the cardboard over the
high-pressure fuel lines and check for fuel spray onto