DODGE RAM 1500 1998 2.G Workshop Manual

(2)Pre-lube the turbocharger.Pour 50 to 60 cc
(2 to 3 oz.) clean engine oil in the oil supply line fit-
ting. Carefully rotate the turbocharger impeller by
hand to distribute the oil thoroughly.
(3) Install and tighten the oil supply line to 24
N´m (18 ft. lbs.) torque.
(4) Position the charge air cooler inlet pipe to the
turbocharger. With the clamp in position, tighten the
clamp nut to 11 N´m (95 in. lbs.) torque.
(5) Position the air inlet hose to the turbocharger
(Fig. 18). Tighten the clamp to 11 N´m (95 in. lbs.)
torque.
(6) Raise vehicle on hoist.
(7) Using a new gasket, install the oil drain tube
to the turbocharger (Fig. 19). Tighten the drain tube
bolts to 24 N´m (18 ft. lbs.) torque.
(8) Tighten the oil drain tube clamps to 8 N´m (71
in. lbs.).
(9) Connect the exhaust pipe to the turbocharger
and tighten the bolts to 11.3 N´m (100 in. lbs.)
torque.
(10) Lower the vehicle.
(11) Connect the battery negative cables.
(12) Start the engine to check for leaks.
CHARGE AIR COOLER AND
PLUMBING
DESCRIPTION
The charge air system (Fig. 23) consists of the
charge air cooler piping, charge air cooler and intake
air grid heater.The charge air cooler is a heat exchanger that uses
air flow from vehicle motion to dissipate heat from
the intake air. As the turbocharger increases air
pressure, the air temperature increases. Lowering
the intake air temperature increases engine effi-
ciency and power.
OPERATION
Intake air is drawn through the air cleaner and
into the turbocharger compressor housing. Pressur-
ized air from the turbocharger then flows forward
through the charge air cooler located in front of the
radiator. From the charge air cooler the air flows
back into the intake manifold.
DIAGNOSIS AND TESTING - CHARGE AIR
COOLER SYSTEM - LEAKS
Low turbocharger boost pressure and low engine
performance can be caused by leaks in the charge air
cooler or plumbing. Fuel staining on the exhaust
manifold can also be an indication that there are
leaks in the air system.The following procedure out-
lines how to check for leaks in the charge air cooler
system.
(1) Loosen clamp and remove air inlet hose from
turbocharger.
(2) Insert Special Tool 9022 Adapter into the tur-
bocharger inlet. Tighten tool clamp to 8 N´m (72 in.
lbs.).
Fig. 22 Measure Turbocharger Bearing Radial
Clearance
1 - FEELER GAUGE
Fig. 23 Intake Air Circulation
1 - CHARGE AIR COOLER
2 - AIRFILTER
3 - TURBOCHARGER
11 - 16 EXHAUST SYSTEMDR
TURBOCHARGER (Continued)

CAUTION: Do not apply more than 138 kPa (20 psi)
air pressure to the charge air cooler system, sever
damage to the charge air cooler system may occur.
(3) Connect a regulated air supply to air fitting on
Tool 9022 Adapter. Set air pressure to a Maximum of
138 kPa (20 psi).
(4) Using soapy water check the rubber sleeves,
charge air cooler and intake manifold for leaks.
REMOVAL
WARNING: IF THE ENGINE WAS JUST TURNED
OFF, THE AIR INTAKE SYSTEM TUBES MAY BE
HOT.
(1) Disconnect the battery negative cables.
(2) Discharge the A/C system (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - STAN-
DARD PROCEDURE) and remove the A/C condenser
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING/A/C CONDENSER - REMOVAL) (if A/C
equipped).
(3) Remove the transmission auxiliary cooler
(Refer to 7 - COOLING/TRANSMISSION/TRANS
COOLER - REMOVAL).
(4) Remove the boost tubes from the charge air
cooler (Fig. 24).
(5) Remove the charge air cooler bolts. Pivot the
charge air cooler forward and up to remove.
CLEANING
CAUTION: Do not use caustic cleaners to clean the
charge air cooler. Damage to the charge air cooler
will result.
NOTE: If internal debris cannot be removed from
the cooler, the charge air cooler MUST be replaced.
(1) If the engine experiences a turbocharger failure
or any other situation where oil or debris get into the
charge air cooler, the charge air cooler must be
cleaned internally.
(2) Position the charge air cooler so the inlet and
outlet tubes are vertical.
(3) Flush the cooler internally with solvent in the
direction opposite of normal air flow.
(4) Shake the cooler and lightly tap on the end
tanks with a rubber mallet to dislodge trapped
debris.
(5) Continue flushing until all debris or oil are
removed.
(6) Rinse the cooler with hot soapy water to
remove any remaining solvent.
(7) Rinse thoroughly with clean water and blow
dry with compressed air.
INSPECTION
Visually inspect the charge air cooler for cracks,
holes, or damage. Inspect the tubes, fins, and welds
for tears, breaks, or other damage. Replace the
charge air cooler if damage is found.
Pressure test the charge air cooler, using Charge
Air Cooler Tester Kit #3824556. This kit is available
through CumminstService Products. Instructions
are provided with the kit.
INSTALLATION
(1) Position the charge air cooler. Install the bolts
and tighten to 2 N´m (17 in. lbs.) torque.
(2) Install the air intake system tubes to the
charge air cooler. With the clamps in position, tighten
the clamps to 11 N´m (95 in. lbs.) torque.
(3) Install the transmission auxiliary cooler (if
equipped) (Refer to 7 - COOLING/TRANSMISSION/
TRANS COOLER - INSTALLATION).
(4) Install the A/C condenser (if A/C equipped)
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING/A/C CONDENSER - INSTALLATION).
Recharge A/C system (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE).
(5) Connect the battery negative cables.
(6) Start engine and check for boost system leaks.
Fig. 24 Air Intake System Tubes
1 - BOLT
2 - CHARGE AIR COOLER
3 - CLAMP
4 - BOOST TUBE
DREXHAUST SYSTEM 11 - 17
CHARGE AIR COOLER AND PLUMBING (Continued)

FRAMES & BUMPERS
TABLE OF CONTENTS
page page
BUMPERS
SPECIFICATIONS - TORQUE...............1
FRONT AIR DAM
REMOVAL.............................2
INSTALLATION..........................2
FRONT BUMPER
REMOVAL.............................2
INSTALLATION..........................2
FRONT FASCIA
REMOVAL.............................2
INSTALLATION..........................3
REAR BUMPER
REMOVAL.............................3
INSTALLATION..........................4
FRAME
WARNING
SAFETY PRECAUTIONS AND WARNINGS . . . 4
STANDARD PROCEDURE
STANDARD PROCEDURE - LIGHT DUTY
FRONT FRAME RAIL TIP REPLACEMENT....4
STANDARD PROCEDURE - HYDROFORM
FENDER RAIL REPAIR.................11
STANDARD PROCEDURE - REAR FRAME
H-SECTION REPLACEMENT.............13SPECIFICATIONS
SPECIFICATIONS - WELD PROCESS......15
SPECIFICATIONS - FRAME DIMENSIONS . . . 16
SPECIFICATIONS - TORQUE............22
FRONT CROSSMEMBER
REMOVAL.............................22
INSTALLATION.........................22
FRONT SKID PLATE
REMOVAL.............................23
INSTALLATION.........................23
FRONT TOW HOOK ASSEMBLY
REMOVAL.............................23
INSTALLATION.........................23
TRANSMISSION CROSSMEMBER
REMOVAL.............................24
INSTALLATION.........................24
TRAILER HITCH
REMOVAL.............................25
INSTALLATION.........................25
TRANSFER CASE SKID PLATE
REMOVAL.............................26
INSTALLATION.........................26
BUMPERS
SPECIFICATIONS - TORQUE
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Front bumper center bracket nuts 95 70 Ð
Front bumper stud plate nuts 95 70 Ð
License plate hitch reinforcement bolts 54 40 Ð
Rear bumper support bracket stud plate nuts 54 40 Ð
Rear bumper support bracket to hitch bolts 54 40 Ð
Rear bumper to hitch bolts 54 40 Ð
DRFRAMES & BUMPERS 13 - 1

FRONT AIR DAM
REMOVAL
(1) Remove the two outboard screws.
(2) Remove the three middle screws and remove
the air dam.
INSTALLATION
(1) Position the air dam onto the bumper and seat
the carrot type fasteners fully.
(2) Starting at the center screw install the three
middle screws.
(3) Install the two outboard screws.
FRONT BUMPER
REMOVAL
(1) Using a grease pencil or equivalent, mark the
position of the bumper on the frame rail tip to aid
installation.
(2) Disconnect the fog lamp electrical connector at
the left frame rail.
(3) Support the bumper with a suitable lifting
device.
(4) Remove the center bracket nuts and bolts and
remove bumper. (Fig. 1)
INSTALLATION
(1) Install the bumper onto the frame rails and
position the wheelhouse splash shield into the sup-
port brackets.
(2) Install the bolts and nuts.
(3) Line up the bumper with the marks made pre-
viously and tighten the bolts and nuts to 95 N´m (70
ft. lbs.).
(4) Check and adjust the bumper alignment as
necessary. (Refer to 23 - BODY/BODY STRUCTURE/
GAP AND FLUSH - SPECIFICATIONS)
FRONT FASCIA
REMOVAL
ST/SLT/SLT+ - FASCIA REMOVAL
(1) Remove the two screws at each trailing edge of
the fascia. (Fig. 2)
(2) Remove the four push pin fasteners from the
upper edge of the close out panel.
(3) Using a trim stick C-4755 or equivalent, care-
fully release the six lower clips and remove the close
out panel.
(4) Using a trim stick C-4755 or equivalent, care-
fully remove the step pad.
(5) Remove and discard the four push pin fasten-
ers and remove the fascia.
Fig. 1 BUMPER SUPPORT BRACKET - TYPICAL
1 - FASCIA - SPORT MODEL
2 - SUPPORT BRACKET
3 - FASCIA SUPPORT BRACKET
4 - WHEELHOUSE SPLASH SHIELD SUPPORT BRACKET
5 - BUMPER CENTER BRACKET
6 - NUTS (4 PER SIDE)
7 - FRAME RAIL TIP
8 - CENTER BRACKET NUTS (2 PER SIDE)
9 - CENTER BRACKET BOLTS ASSEMBLY (1 PER SIDE)
10 - FOG LAMPFig. 2 UPPER FASCIA - ST/SLT/SLT+
1 - STEP PAD
2 - UPPER FASCIA (ST/SLT/SLT+ MODEL ONLY)
3 - INBOARD BUMPER BRACKET ATTACHMENTS
4 - SCREWS (4)
5 - PUSH PIN FASTENERS (4)
13 - 2 FRAMES & BUMPERSDR

SPORT FASCIA REMOVAL
(1) Raise and support the vehicle. (Refer to
LUBRICATION & MAINTENANCE/HOISTING -
STANDARD PROCEDURE)
(2) Remove the three screws at each trailing edge
of the fascia. (Fig. 3)
(3) Remove the five lower screws.
(4) Remove and discard the four upper push pins.
(5) Using a trim stick C-4755 or equivalent, care-
fully release the six lower clips and remove the close
out panel.
(6) Using a trim stick C-4755 or equivalent, care-
fully remove the step pad.
(7) Spread the fascia out at the wheels and remove
from the vehicle.
INSTALLATION
NOTE: The left and right inboard bumper to bracket
attachments must be secured before installing the
fascia and step pad.
ST/SLT/SLT+ FASCIA INSTALLATION
(1) Install the fascia.
(2) Position the close out panel and seat the 6
lower clips fully.
(3) Install four new upper push pin fasteners.
(4) Position the step pad onto the fascia and fully
seat the attachment clips.(5) Align the fascia to the fender with a 19 mm
(0.75 inch) gap and install the two screws at each
trailing edge of the fascia.
SPORT FASCIA INSTALLATION
(1) Position the fascia onto the bumper.
(2) Position the step pad onto the fascia and fully
seat the attachment clips.
(3) Install four new upper push pin fasteners.
(4) Install the five lower screws.
(5) Install the three screws at each trailing edge of
the fascia.
REAR BUMPER
REMOVAL
(1) Raise and support the vehicle. (Refer to
LUBRICATION & MAINTENANCE/HOISTING -
STANDARD PROCEDURE)
(2) Remove the license plate.
(3) Remove the bolts behind the plate.
(4) Disconnect the license plate light electrical con-
nectors.
(5) Disconnect the trailer light connector electrical
connection, if equipped.
(6) Remove the two bolts along the front upper
edge of the bumper near the frame tips.
(7) Support the bumper with a suitable lifting
device.
(8) Remove the bolts attaching the bumper support
brackets to the trailer hitch. (Fig. 4)
Fig. 3 SPORT FASCIA
1 - STEP PAD
2 - FASCIA (SPORT MODEL ONLY)
3 - SCREWS (3 PER SIDE)
4 - UPPER FASCIA SUPPORT BRACKET
5 - WHEELHOUSE SPLASH SHIELD BRACKET
6 - INBOARD BUMPER BRACKET ATTACHMENTS
7 - PUSH PIN FASTENERS (4)
8 - LOWER SCREWS (5)
Fig. 4 TRAILER HITCH
1 - HITCH
2 - LD HITCH BOLTS (4)/HD (6)
3 - BUMPER BRACKET BOLTS (4)
4 - BUMPER SUPPORT BRACKETS
DRFRAMES & BUMPERS 13 - 3
FRONT FASCIA (Continued)

INSTALLATION
(1) Align the holes in the bumpers to the trailer
hitch pins and install the bumper.
(2) Install the support bracket to the hitch bolts,
loosely.
(3) Install the front upper edge to the trailer hitch
bolts and tighten to 54 N´m (40 ft. lbs.).
(4) Install the license plate reinforcement to hitch
bolts and tighten to 54 N´m (40 ft. lbs.).
(5) Tighten the left bumper bracket bolts to 54
N´m (40 ft. lbs.).
(6) Tighten the right bumper bracket bolts to 54
N´m (40 ft. lbs.).
(7) Connect the trailer light connector electrical
connection, if equipped.
(8) Connect the license plate light electrical con-
nectors.
(9) Install the license plate.
FRAME
WARNING
SAFETY PRECAUTIONS AND WARNINGS
WARNING: USE EYE PROTECTION WHEN GRIND-
ING OR WELDING METAL, SERIOUS EYE INJURY
CAN RESULT.
²BEFORE PROCEEDING WITH FRAME REPAIR
INVOLVING GRINDING OR WELDING, VERIFY THAT
VEHICLE FUEL SYSTEM IS NOT LEAKING OR IN
CONTACT WITH REPAIR AREA, PERSONAL INJURY
CAN RESULT.
²DO NOT ALLOW OPEN FLAME OR HEAT AND
METAL SPATTER FROM ARC WELDING, TO CON-
TACT PLASTIC BODY PANELS. FIRE OR EXPLO-
SION CAN RESULT.
²WHEN WELDED FRAME COMPONENTS ARE
REPLACED, ENSURE COMPLETE PENETRATION
WELD IS ACHIEVED DURING INSTALLATION. IF
NOT, DANGEROUS OPERATING CONDITIONS CAN
RESULT.
²STAND CLEAR OF CABLES OR CHAINS ON
PULLING EQUIPMENT DURING FRAME STRAIGHT-
ENING OPERATIONS, PERSONAL INJURY CAN
RESULT.
²DO NOT VENTURE UNDER A HOISTED VEHI-
CLE THAT IS NOT SUPPORTED ON SAFETY
STANDS, PERSONAL INJURY CAN RESULT.
CAUTION: 1500 series Dodge Ram Trucks (2002 and
later) are not designed for snow plow equipment.The front collision repair tips must not be installed
on any truck equipped with a snow plow, or even
intended to be equipped with a snow plow.
CAUTION: Do not reuse damaged fasteners, quality
of repair would be suspect. Failure to use only pro-
duction fasteners or fasteners of equivalent hard-
ness can result in loosening or failure. Do not drill
any holes in the frame that are not specifically out-
lined in this or other, DaimlerChrysler procedure as
frame rail failure can result. When using heat to
straighten frame components do not exceed 566ÉC
(1050ÉF), metal fatigue can result.
STANDARD PROCEDURE
STANDARD PROCEDURE - LIGHT DUTY FRONT
FRAME RAIL TIP REPLACEMENT
CAUTION: This procedure is designed to replace
the front frame rail tips that have been damaged in
the crush initiator zones. Prior to any cutting, the
vehicle must be mounted on the appropriate frame
repair equipment (ªframe rackº), checked with three
dimensional measuring equipment, and the neces-
sary pull corrections made. If damage remains in
the frame beyond the area covered by this service
part after the pull, the frame must be replaced in its
entirety.
NOTE: Procedures for 4X2 and 4X4 are common
except as noted in this procedure.
(1) Before proceding with this repair procedure
review the required service warnings and precau-
tions. (Refer to 13 - FRAME & BUMPERS/FRAME -
WARNING)
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the front wheelhouse splash shield.
(Refer to 23 - BODY/EXTERIOR/FRONT WHEEL-
HOUSE SPLASH SHIELD - REMOVAL)
(4) Remove the bolts and position aside the wire
harness and grounds, if required.
(5) Remove the front bumper. (Refer to 13 -
FRAME & BUMPERS/BUMPERS/FRONT BUMPER
- REMOVAL)
(6) Loosen and lower the stabilizer bar mount and
bar. (Refer to 2 - SUSPENSION/FRONT/STABI-
LIZER BAR - REMOVAL)
13 - 4 FRAMES & BUMPERSDR
REAR BUMPER (Continued)

(7) Remove the front cab mount bolt to the Front
End Sheet Metal (FESM) bracket. (Fig. 5)
(8) Make a vertical mark on the inside and outside
face of the frame rail 112 mm (4.5 in.) from the for-
ward edge of the PLP hole in the sides of the rail.
(Fig. 7)
(9) Using a straightedge, connect the two lines on
the top and bottom of the rail.
(10) Using the service tip as a guide, re-check your
cut lines to ensure the service tip will fit when the
cut is made.
CAUTION: Do not use any flame or plasma cutting
equipment to cut the frame in this procedure. This
is due to the inaccurate nature of the cut-line and
the fact that the high temperatures achieved duringflame or plasma cutting will change the metal char-
acteristics and may weaken the frame and/or repair
location.
(11) Using a reciprocating saw or equivalent, care-
fully cut and remove the damaged frame rail tip.
(Fig. 6)
(12) Assemble the service sleeve. Refer to SER-
VICE SLEEVE ASSEMBLY at the end of this proce-
dure.
NOTE: Any burned surface coatings will need to be
removed from the sleeve prior to installation and
application of corrosion preventative coatings.
(13) Smooth and square the cut edges of the origi-
nal frame. (Fig. 6)
Fig. 5 REPLACEMENT FRAME TIP
1 - FRONT END SHEET METAL (FESM) BRACKET
2 - CAB INSULATOR
3 - RING-FILLET WELD/HOLE
4 - PRINCIPLE LOCATING POINT (PLP)
5 - WELD ROOT GAP 4 mm-6mm(0.16 in. - 0.24 in.)
6 - FRONT CAB MOUNT BOLT
7 - REPLACEMENT FRAME TIP
Fig. 6 FRAME CUT LOCATION
1 - REPAIR ROOT OPENING
2 - SERVICE SLEEVE
3 - PRINCIPLE LOCATING POINT (PLP)
4 - SUSPENSION BRACKETS
5 - FRAME
6 - FRAME CUTOFF LOCATION - 112 mm (4.5 in.)
7 - FRAME SERVICE TIP
DRFRAMES & BUMPERS 13 - 5
FRAME (Continued)

(14) Dress the cut edge of the existing frame in
preparation for the new rail tip.
(a) Drill four 13 mm (0.5 in.) diameter holes in
the new tip and four more in the existing frame to
accommodate ring-fillet welds. Center these holes
19 mm (0.75 in.) from the cut face of the rail and
38 mm (1.5 in.) from the top and bottom of the rail.
(Fig. 7)
(b) Bevel the edges of the new tip, existing
frame, and ring-fillet holes 25É - 30É. Scribing a
line 2 mm from the cut edge and then grinding
back to the mark will simplify the bevel creation
process and accuracy. (Fig. 8)
(c) Remove any burrs at the holes and beveled
edges.
(15) Dry fit the new rail to ensure alignment and
fit and make any adjustments as necessary.(16) Remove all internal and external OEM e-coat
within 51 mm (2.0 in.) of the weld joint on the
replacement tip and the existing frame rail.
NOTE: Any burned surface coatings will need to be
removed prior to application of corrosion preventa-
tive coatings.
CAUTION: Shield the surrounding area and compo-
nents from exposure to the welding spatter and
heat.
Fig. 7 REPAIR SLEEVE INSTALLATION (TYPICAL)
1 - REPLACEMENT FRAME TIP
2 - FRAME RAIL
3 - SERVICE SLEEVE
4 - CENTER LINE
5 - LOCATOR LINES (2)
6 - HORIZONTAL WELD HOLE LOCATION - 38 mm (1.5 in.)(BOTH
FRAME SECTIONS)
7 - LOCATOR LINE DIMENSION-2mm(0.08 in.)
8 - VERTICAL WELD HOLE LOCATION - 19 mm (0.75 in.)(BOTH
FRAME SECTIONS)
9 - RING FILLET WELD HOLES
Fig. 8 WELD DIMENSIONS
1 - FRAME REPLACEMENT TIP
2 - FRAME RAIL
3 - FRAME DRESS ANGLE 25É-30É
4 - ROOT PASS
5 - COVER PASS
6 - SERVICE SLEEVE
7 - WELD ROOT GAP 4 mm-6mm(0.16 in. - 0.24 in.)
8 - SERVICE SLEEVE
13 - 6 FRAMES & BUMPERSDR
FRAME (Continued)

(17) On 4X4 models use the service sleeve as a
template to drill a hole in the frame tip to accommo-
date the sway bar mounting bolt. (Fig. 11)
(18) Slide the service sleeve into the replacement
frame tip and align to the 2 mm (0.08 in.) off center
line made previously during the sleeve assembly and
tack the ring fillet welds to hold them in place. (Fig.
9) (Fig. 10) (Fig. 11) (Fig. 12)
(19) On 4X4 models, install the sway bar tapping
plate and secure with tack welds. (Fig. 11) (Fig. 12)
Fig. 9 4X2 SLEEVE INSTALLATION
1 - REPLACEMENT FRAME TIP
2 - FRAME RAIL
3 - SERVICE SLEEVE
4 - PLP
5 - SWAY BAR MOUNTING BRACKET
6 - TAPPING PLATE
7 - ROOT WELD GAPFig. 10 4X2 SLEEVE INSTALLATION
1 - REPLACEMENT FRAME TIP
2 - ROOT WELD GAP
3 - SERVICE SLEEVE
4 - SWAY BAR MOUNTING BRACKET
5 - TAPPING PLATE
DRFRAMES & BUMPERS 13 - 7
FRAME (Continued)