Chrysler RAM TRUCK 2500 1994 Service Manual page 369

8D - 12 IGNITION SYSTEMS
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Fig. 4 Crankshaft Position Sensor—3.9L V-6 or
5.2/5.9L V-8 Engines—Typical
CRANKSHAFT POSITION SENSOR TEST—8.0L
V-10 ENGINE
The crankshaft position sensor is located on the
right-lower side of the cylinder block, forward of the
right engine mount, just above the oil pan rail (Fig.
5).
Fig. 5 Crankshaft Position Sensor—8.0L V-10
Engine—Typical
To perform a complete test of this sensor and its
circuitry, refer to the DRB scan tool. Also refer to the
appropriate Powertrain Diagnostics Procedures man­
ual. To test the sensor only, refer to the following:
(1) Raise and support the vehicle.
(2) Disconnect the sensor pigtail harness from the
main engine wiring harness connector.
(3) Place an ohmmeter across terminals B and C
(Fig. 3). O h m m e t e r s h o u l d b e s e t to IK-to-1 OK
s c a l e f o r t h i s test. The meter reading should be
open (no resistance). Replace sensor i f a low resis­
tance is indicated.
DISTRIBUTOR CAP—3 J L V-6 OR 5.2/6 J L V-8
ENGINES
INSPECTION
Remove the distributor cap and wipe i t clean with
a dry lint free cloth. Visually inspect the cap for
cracks, carbon paths, broken towers, or damaged ro­
tor button (Figs. 6 and 7). Also check for white depos­
its on the inside (caused by condensation entering
the cap through cracks). Replace any cap that dis­
plays charred or eroded terminals. The machined
surface of a terminal end (faces toward rotor) will in­
dicate some evidence of erosion from normal opera­
tion. Examine the terminal ends for evidence of
mechanical interference with the rotor tip.
Fig. 7 Cap Inspection—Internal—Typical