2002 DODGE RAM wheel

FRONT BUMPER - SPORT
REMOVAL
(1) Disconnect wire connectors from fog lamps.
(2) Remove screws attaching fascia and outer
bumper brackets to wheelhouse liners.
(3) Remove screws and push-in fasteners attaching
bottom of fascia to air deflector.
(4) Support bumper on a suitable lifting device.
(5) Remove nuts attaching bumper to inner
bumper brackets (Fig. 7).
(6) Separate bumper from vehicle.
INSTALLATION
(1) Support bumper on a suitable lifting device.
(2) Position bumper on vehicle.
(3) Install nuts attaching bumper to inner bumper
brackets. Tighten nuts to 94 N´m (70 ft. lbs.) torque.
(4) Install screws and push-in fasteners attaching
bottom of fascia to air deflector.
(5) Align fascia and wheelhouse liners with outer
bumper brackets and install screws. See fascia
adjustment in this section.
(6) Connect wire connectors to fog lamps.
Fig. 7 Front Bumper & Fascia Ð Sport
1 - FASCIA
2 - U-NUT
3 - RETAINING CLIP
4 - OUTER BRACKET
5 - INNER BRACKET
6 - FRAME7 - FASCIA SUPPORT
8 - OUTER BRACKET
9 - PUSH-IN FASTENER
10 - AIR DEFLECTOR
11 - BUMPER
BR/BEFRAME & BUMPERS 13 - 5

FRAME SERVICE
SAFETY PRECAUTIONS AND WARNINGS
WARNING: USE EYE PROTECTION WHEN GRIND-
ING OR WELDING METAL, SERIOUS EYE INJURY
CAN RESULT. BEFORE PROCEEDING WITH FRAME
REPAIR INVOLVING GRINDING OR WELDING, VER-
IFY THAT VEHICLE FUEL SYSTEM IS NOT LEAKING
OR IN CONTACT WITH REPAIR AREA, PERSONAL
INJURY CAN RESULT. DO NOT ALLOW OPEN
FLAME TO CONTACT PLASTIC BODY PANELS.
FIRE OR EXPLOSION CAN RESULT. WHEN
WELDED FRAME COMPONENTS ARE REPLACED,
100% PENETRATION WELD MUST BE ACHIEVED
DURING INSTALLATION. IF NOT, DANGEROUS
OPERATING CONDITIONS CAN RESULT. STAND
CLEAR OF CABLES OR CHAINS ON PULLING
EQUIPMENT DURING FRAME STRAIGHTENING
OPERATIONS, PERSONAL INJURY CAN RESULT.
DO NOT VENTURE UNDER A HOISTED VEHICLE
THAT IS NOT SUPPORTED ON SAFETY STANDS,
PERSONAL INJURY CAN RESULT.
CAUTION: Do not reuse damaged fasteners, quality
of repair would be suspect. Do not drill holes in top
or bottom frame rail flanges, frame rail failure can
result. Do Not use softer than Grade 5 bolts to
replace production fasteners, loosening or failure
can result. When using heat to straighten frame
components do not exceed 566ÉC (1050ÉF), metal
fatigue can result. Welding the joints around riveted
cross members and frame side rails can weaken
frame.
FRAME STRAIGHTENING
When necessary, a conventional frame that is bent
or twisted can be straightened by application of heat.
The temperature must not exceed 566ÉC (1050ÉF).
The metal will have a dull red glow at the desired
temperature. Excessive heat will decrease the
strength of the metal and result in a weakened
frame.
Welding the joints around riveted cross members
and frame side rails is not recommended.
A straightening repair process should be limited to
frame members that are not severely damaged. The
replacement bolts, nuts and rivets that are used to
join the frame members should conform to the same
specifications as the original bolts, nuts and rivets.
FRAME REPAIRS
DRILLING HOLES
Do not drill holes in frame side rail top and bottom
flanges, metal fatigue can result causing frame fail-
ure. Holes drilled in the side of the frame rail must
be at least 38 mm (1.5 in.) from the top and bottom
flanges.
Additional drill holes should be located away from
existing holes.
WELDING
Use MIG, TIG or arc welding equipment to repair
welded frame components.
Frame components that have been damaged should
be inspected for cracks before returning the vehicle
to use. If cracks are found in accessible frame com-
ponents perform the following procedures.
(1) Drill a hole at each end of the crack with a 3
mm (O.125 in.) diameter drill bit.
(2) Using a suitable die grinder with 3 inch cut off
wheel, V-groove the crack to allow 100% weld pene-
tration.
(3) Weld the crack.
(4) If necessary when a side rail is repaired, grind
the weld smooth and install a reinforcement channel
(Fig. 9) over the repaired area.
NOTE: If a reinforcement channel is required, the
top and bottom flanges should be 0.250 inches nar-
rower than the side rail flanges. Weld only in the
areas indicated (Fig. 9).
Fig. 9 Frame Reinforcement
1 - .250 IN FROM EDGE
2 - TOP FLANGE
3 - BOTTOM FLANGE
4 - FRAME RAIL
5 - FRAME REPAIR REINFORCEMENT
BR/BEFRAME & BUMPERS 13 - 7
FRAME (Continued)

FRAME FASTENERS
Bolts, nuts and rivets can be used to repair frames
or to install a reinforcement section on the frame.
Bolts can be used in place of rivets. When replacing
rivets with bolts, install the next larger size diameter
bolt to assure proper fit. If necessary, ream the hole
out just enough to sufficiently receive the bolt.
Conical-type washers are preferred over the split-
ring type lock washers. Normally, grade-5 bolts are
adequate for frame repair.Grade-3 bolts or softer
should not be used.Tightening bolts/nuts with thecorrect torque, refer to the Introduction Group at the
front of this manual for tightening information.
SPECIFICATIONS
FRAME DIMENSION
Frame dimensions are listed in Millimeters (mm)
scale. All dimensions are from center to center of
Principal Locating Point (PLP), or from center to cen-
ter of PLP and fastener location (Fig. 10) .
DIMENSIONS FOR DIFFERING WHEELBASES*
WHEELBASE LENGTH
ALENGTH
BLENGTH
C
118 2118.0 3663.6 4185.4
134 2118.0 3994.5 4693.4
138 2626.0 4096.1 4693.4
154 2626.0 4502.5 5201.4
162 2118.0 4705.0 5042.5
*Measurements are in Millimeters (mm).
13 - 8 FRAME & BUMPERSBR/BE
FRAME (Continued)

Attach end of special test hose tool number 6541,
6539, 6631 or 6923 at fuel rail disconnection (tool
number will depend on model and/or engine applica-
tion). Position opposite end of this hose tool to an
approved gasoline draining station. Activate fuel
pump and drain tank until empty.
If electric fuel pump is not operating, tank must be
lowered for fuel draining. Refer to following proce-
dures.
(1) Remove fuel tank filler tube cap.
(2) Perform Fuel System Pressure Release proce-
dure as described in this group.
(3) Gasoline Engines: Disconnect negative battery
cable at battery. Diesel Engines: Disconnect both neg-
ative battery cables at both batteries.
(4) Raise vehicle on hoist.
(5) Certain models are equipped with a separate
grounding wire (strap) connecting the fuel fill tube
assembly to the body. Disconnect wire by removing
screw.
(6) Open fuel fill door and remove screws mount-
ing fuel filler tube assembly to body. Do not discon-
nect rubber fuel fill or vent hoses from tank at this
time.
(7) Place a transmission jack under center of fuel
tank. Apply a slight amount of pressure to fuel tank
with transmission jack.
(8) Remove fuel tank mounting strap nuts from
mounting strap studs (Fig. 32). If equipped, remove
fuel tank shield bolts.
(9) Lower fuel tank only enough to allow access to
top of tank. The 2 tank fittings (where rubber fuel fill
and vent hose connections are made) must be posi-
tioned above tank level. Rotate tank slightly to allow
these fittings to be above tank level.
WARNING: WRAP SHOP TOWELS AROUND HOSES
TO CATCH ANY GASOLINE SPILLAGE.
(10) While working over left rear tire/wheel, dis-
connect rubber fuel vent hose at fuel tank (Fig. 32)
(vent hose is the smallest of 2 hoses). Position fuel
siphoning/drain hose into this fitting at tank. Drain
fuel into an approved portable holding tank or a
properly labeled gasoline (or diesel fuel) safety con-
tainer.
(11) Disconnect rubber fuel fill hose at fuel tank
(Fig. 32).
(12)Gas Powered Engines:
(a) While working over left rear tire/wheel, dis-
connect wiring harness connector from electrical
connector at top of fuel pump module (Fig. 33) or
(Fig. 34).
(b) If equipped with 26 or 34 gallon fuel tank,
two EVAP lines are connected to the fuel tank
check valves. Disconnect EVAP line from check
valve at top of module (Fig. 33). Disconnect otherEVAP line from check valve near rear of tank (Fig.
33).
(c) If equipped with 35 gallon fuel tank, two
EVAP lines are connected to the fuel tank check
valves. Disconnect EVAP lines from check valves at
top-front and top-rear of fuel tank (Fig. 35).
(d) Disconnect fuel supply line at fuel filter/fuel
pressure regulator supply fitting (Fig. 33) or (Fig.
34). Refer to Quick-Connect Fittings for proce-
dures.
(13)Diesel Powered Engines:
(a) While working over left rear tire/wheel, dis-
connect wiring harness connector from electrical
connector at top of fuel tank module (Fig. 36).
(b) Disconnect fuel supply and fuel return lines
at the fuel tank module fittings (Fig. 36). Refer to
Quick-Connect Fittings for procedures.
(14) Gasoline Engines: If fuel pump module
removal is necessary, refer to Fuel Pump Module
Removal/Installation in this group. Diesel Engines: If
fuel tank module removal is necessary, refer to Fuel
Tank Module Removal/Installation in this group.
Fig. 32 Fuel Tank MountingÐTypical
1 - STRAP MOUNTING STUDS (AT FRAME)
2 - FUEL FILL HOSE
3 - FUEL VENT HOSE
4 - STRAP MOUNTING NUTS (2)
5 - FUEL TANK STRAPS (2)
6 - FUEL TANK
7 - CLAMPS
BR/BEFUEL DELIVERY - GASOLINE 14 - 19
FUEL TANK (Continued)

(22) Inspect for pinched or leaking fuel tubes.
Inspect for pinched, cracked or leaking fuel hoses.
(23) Inspect for exhaust system restrictions such
as pinched exhaust pipes, collapsed muffler or
plugged catalytic convertor.
(24) If equipped with automatic transmission, ver-
ify that electrical harness is firmly connected to park/
neutral switch. Refer to 21, Automatic Transmission.(25) Verify electrical harness is firmly connected to
rear wheel speed sensor. Verify rear wheel speed sen-
sor is firmly attached to rear axle with proper air
gap. Refer to 5, Brakes for information.
(26) If equipped with 4±wheel antilock brake sys-
tem, verify electrical harness is firmly connected to
each front wheel speed sensor. Verify both front
wheel speed sensors are firmly attached. Refer to 5,
Brakes for information.
(27) Verify that fuel pump/gauge sender unit wire
connector is firmly connected to harness connector.
(28) Inspect fuel hoses at fuel pump/gauge sender
unit for cracks or leaks.
Fig. 7 Rubber L-Shaped FittingÐMAP Sensor-to-
Throttle BodyÐ5.9L Engines
1 - MAP SENSOR
2 - RUBBER FITTING
3 - IDLE AIR PASSAGE
Fig. 8 Engine Coolant Temperature
1 - GENERATOR
2 - A/C COMPRESSOR
3 - ENGINE COOLANT TEMPERATURE SENSOR
4 - ELEC. CONN.
Fig. 9 Left/Right Oxygen SensorsÐHDC Engines
1 - DUAL OXYGEN SENSORS
2 - TOP OF TRANSMISSION
Fig. 10 Pre-Catalyst/Post-Catalyst Sensors
1 - POST CATALYST OXYGEN SENSOR (1/3)
2 - PRE-CATALYST OXYGEN SENSOR (1/2)
BR/BEFUEL INJECTION - GASOLINE 14 - 31
FUEL INJECTION - GASOLINE (Continued)

(29) Inspect transmission torque convertor housing
(automatic transmission) or clutch housing (manual
transmission) for damage to timing ring on drive
plate/flywheel.
(30) Verify that battery cable and solenoid feed
wire connections to the starter solenoid are tight and
clean. Inspect for chaffed wires or wires rubbing up
against other components.
VISUAL INSPECTIONÐ8.0L ENGINE
A visual inspection for loose, disconnected or incor-
rectly routed wires and hoses should be made. This
should be done before attempting to diagnose or ser-
vice the fuel injection system. A visual check will
help spot these faults and save unnecessary test and
diagnostic time. A thorough visual inspection will
include the following checks:
(1) Verify that the three 32±way electrical connec-
tors are fully inserted into the connector of the pow-
ertrain control module (PCM) (Fig. 12).
(2) Inspect the battery cable connections. Be sure
that they are clean and tight.
(3) Inspect fuel pump relay and air conditioning
compressor clutch relay (if equipped). Inspect the
ASD relay connections. Inspect starter motor relay
connections. Inspect relays for signs of physical dam-
age and corrosion. The relays are located in the
Power Distribution Center (PDC) (Fig. 13). Refer to
label on PDC cover for relay location.
(4) Inspect ignition coil pack primary connections.
Verify that secondary cables are firmly connected to
coils (Fig. 14).
(5) Be sure that spark plug cables are firmly con-
nected and the spark plugs are in their correct firing
order. Be sure that camshaft position sensor wire
connector is firmly connected to harness connector.
Inspect spark plug condition. Refer to 8, Ignition.Connect vehicle to an oscilloscope and inspect spark
events for fouled or damaged spark plugs or cables.
(6) Verify that generator output wire, generator
connector and ground wire are firmly connected to
the generator.
(7) Inspect the system body grounds for loose or
dirty connections. Refer to 8, Wiring for ground loca-
tions.
(8) Verify crankcase ventilation (CCV) operation.
Refer to 25, Emission Control System for additional
information.
(9) Inspect fuel tube quick-connect fitting-to-fuel
rail connections.
(10) Verify that hose connections to all ports of
vacuum fittings on intake manifold are tight and not
leaking.
Fig. 11 Oxygen SensorsFig. 12 Powertrain Control Module (PCM)
1 - PCM MOUNTING BOLTS (3)
2 - POWERTRAIN CONTROL MODULE (PCM)
3 - (3) 32±WAY CONNECTORS
Fig. 13 Power Distribution Center (PDC)
1 - POWER DISTRIBUTION CENTER (PDC)
14 - 32 FUEL INJECTION - GASOLINEBR/BE
FUEL INJECTION - GASOLINE (Continued)

(20) Raise and support the vehicle.
(21) Verify that all oxygen sensor wire connectors
are firmly connected to the sensors. Inspect sensors
and connectors for damage (Fig. 18), (Fig. 19) or (Fig.
20).
(22) Inspect for pinched or leaking fuel tubes.
Inspect for pinched, cracked or leaking fuel hoses.
(23) Inspect for exhaust system restrictions such
as pinched exhaust pipes, collapsed muffler or
plugged catalytic convertor.
(24) If equipped with automatic transmission, ver-
ify that electrical harness is firmly connected to park/
neutral switch. Refer to 21, Automatic Transmission.
(25) Verify electrical harness is firmly connected to
rear wheel speed sensor. Verify rear wheel speed sen-
sor is firmly attached to rear axle with proper air
gap. Refer to 5, Brakes for information.
(26) If equipped with 4±wheel antilock brake sys-
tem, verify electrical harness is firmly connected to
each front wheel speed sensor. Verify both front
wheel speed sensors are firmly attached. Refer to 5,
Brakes for information.
(27) Verify that fuel pump/gauge sender unit wire
connector is firmly connected to harness connector.
(28) Inspect fuel hoses at fuel pump/gauge sender
unit for cracks or leaks.
(29) Inspect transmission torque convertor housing
(automatic transmission) or clutch housing (manual
transmission) for damage to timing ring on drive
plate/flywheel.
(30) Verify that battery cable and solenoid feed
wire connections to the starter solenoid are tight and
clean. Inspect for chaffed wires or wires rubbing up
against other components.
Fig. 18 Upstream/Downstream Oxygen Sensors
1 - DOWN STREAM OXYGEN SENSOR (1/2)
2 - UP STREAM OXYGEN SENSOR (1/1)
Fig. 19 Left/Right
1 - DUAL OXYGEN SENSORS
2 - TOP OF TRANSMISSION
Fig. 20 Pre-Catalyst/Post Catalyst Oxygen Sensors
1 - POST CATALYST OXYGEN SENSOR (1/3)
2 - PRE-CATALYST OXYGEN SENSOR (1/2)
14 - 34 FUEL INJECTION - GASOLINEBR/BE
FUEL INJECTION - GASOLINE (Continued)

INSTALLATION
(1) Position pedal/bracket assembly over pivot pin
(Fig. 22) .
(2) Install two new pivots/bushings. Using large
pliers, press both bushings together until they bot-
tom on sides of pedal/bracket assembly. Bushing
retaining ears will snap into position when properly
installed.
(3) From inside vehicle, hold up accelerator pedal.
Install throttle cable core wire and plastic cable
retainer into and through upper end of pedal arm
(the plastic retainer is snapped into pedal arm).
When installing plastic retainer to accelerator pedal
arm, note index tab on pedal arm (Fig. 21) . Align
index slot on plastic cable retainer to this index tab.
CRANKSHAFT POSITION
SENSOR
DESCRIPTION
DESCRIPTION - 5.9L
The Crankshaft Position (CKP) sensor is located
near the outer edge of the flywheel (starter ringear).
DESCRIPTION - 8.0L
The Crankshaft Position (CKP) 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. 23).
OPERATION
OPERATION - 5.9L
Engine speed and crankshaft position are provided
through the CKP sensor. The sensor generates pulses
that are the input sent to the Powertrain Control
Module (PCM). The PCM interprets the sensor input
to determine the crankshaft position. The PCM then
uses this position, along with other inputs, to deter-
mine injector sequence and ignition timing.
The sensor is a hall effect device combined with an
internal magnet. It is also sensitive to steel within a
certain distance from it.
On 5.9L V-8 engines, the flywheel/drive plate has 8
single notches, spaced every 45 degrees, at its outer
edge (Fig. 24).
The notches cause a pulse to be generated when
they pass under the sensor. The pulses are the input
to the PCM. For each engine revolution, there are 8
pulses generated on V-8 engines.
The engine will not operate if the PCM does not
receive a CKP sensor input.
Fig. 22 Accelerator PedalÐRemoval or Installation
1 - PEDAL MOUNTING BRACKET
2 - PIVOTS/BUSHINGS
3 - PEDAL/BRACKET
4 - PIVOT PIN
Fig. 23 CKP Sensor LocationÐ8.0L V-10 Engine
1 - CRANKSHAFT POSITION SENSOR
2 - HOLE
3 - OIL FILTER
4 - PLASTIC TIE STRAP
5 - PIGTAIL HARNESS
BR/BEFUEL INJECTION - GASOLINE 14 - 37
ACCELERATOR PEDAL (Continued)