1998 DODGE RAM 1500 system

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DODGE RAM 1500 1998 2.G Workshop Manual GROUP TAB LOCATOR
Introduction
0Lubrication & Maintenance
2Suspension
3Differential & Driveline
5Brakes
6Clutch
7Cooling
8AAudio/Video
8BChime/Buzzer
8EElectronic Control Modules
8FEngine Systems
8GHe

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DODGE RAM 1500 1998 2.G Workshop Manual INTRODUCTION
TABLE OF CONTENTS
page page
VEHICLE IDENTIFICATION NUMBER
DESCRIPTION..........................1
VEHICLE EMISSION CONTROL INFORMATION
(VECI)
DESCRIPTION..........................2
BODY CO

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DODGE RAM 1500 1998 2.G Workshop Manual POSITION INTERPRETATION CODE = DESCRIPTION
4 Gross Vehicle Weight Rating G = 5,001-6000 lbs.
H = 6,001-7,000 lbs.
J = 7,001-8,000 lbs.
K = 8,001-9,000 lbs.
L = 9,001-10,000 lbs.
M = 10,001-14,000 lbs.

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DODGE RAM 1500 1998 2.G Workshop Manual FASTENER USAGE
DESCRIPTION - FASTENER USAGE
WARNING: USE OF AN INCORRECT FASTENER
MAY RESULT IN COMPONENT DAMAGE OR PER-
SONAL INJURY.
Fasteners and torque specifications references in
this Service Ma

FASTENER USAGE
DESCRIPTION - FASTENER USAGE
WARNING: USE OF AN INCORRECT FASTENER
MAY RESULT IN COMPONENT DAMAGE OR PER-
SONAL INJURY.
Fasteners and torque specifications references in
this Service Manual are identified in metric and SAE
format.
During any maintenance or repair procedures, it is
important to salvage all fasteners (nuts, bolts, etc.)
for reassembly. If the fastener is not salvageable, a
fastener of equivalent specification must be used.
THREADED HOLE REPAIR
DESCRIPTION - THREADED HOLE REPAIR
Most stripped threaded holes can be repaired using
a Helicoilt. Follow the vehicle or Helicoiltrecommen-
dations for application and repair procedures.
METRIC SYSTEM
DESCRIPTION
The metric system is based on quantities of one,
ten, one hundred, one thousand and one million.
The following chart will assist in converting metric
units to equivalent English and SAE units, or vise
versa.
CONVERSION FORMULAS AND EQUIVALENT VALUES
MULTIPLY BY TO GET MULTIPLY BY TO GET
in-lbs x 0.11298 = Newton Meters (N´m) N´m x 8.851 = in-lbs
ft-lbs x 1.3558 = Newton Meters (N´m) N´m x 0.7376 = ft-lbs
Inches Hg (60É
F)x 3.377 = Kilopascals (kPa) kPa x 0.2961 = Inches Hg
psi x 6.895 = Kilopascals (kPa) kPa x 0.145 = psi
Inches x 25.4 = Millimeters (mm) mm x 0.03937 = Inches
Feet x 0.3048 = Meters (M) M x 3.281 = Feet
Yards x 0.9144 = Meters M x 1.0936 = Yards
mph x 1.6093 = Kilometers/Hr. (Km/h) Km/h x 0.6214 = mph
Feet/Sec x 0.3048 = Meters/Sec (M/S) M/S x 3.281 = Feet/Sec
mph x 0.4470 = Meters/Sec (M/S) M/S x 2.237 = mph
Kilometers/Hr.
(Km/h)x 0.27778 = Meters/Sec (M/S) M/S x 3.600 Kilometers/Hr.
(Km/h)
COMMON METRIC EQUIVALENTS
1 inch = 25 Millimeters 1 Cubic Inch = 16 Cubic Centimeters
1 Foot = 0.3 Meter 1 Cubic Foot = 0.03 Cubic Meter
1 Yard = 0.9 Meter 1 Cubic Yard = 0.8 Cubic Meter
1 Mile = 1.6 Kilometers
Refer to the Metric Conversion Chart to convert
torque values listed in metric Newton- meters (N´m).
Also, use the chart to convert between millimeters
(mm) and inches (in.) (Fig. 7).
8 INTRODUCTIONDR

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DODGE RAM 1500 1998 2.G Workshop Manual Fig. 7 METRIC CONVERSION CHART
DRINTRODUCTION 9
METRIC SYSTEM (Continued)

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DODGE RAM 1500 1998 2.G Workshop Manual LUBRICATION & MAINTENANCE
TABLE OF CONTENTS
page page
FLUID TYPES
DESCRIPTION
DESCRIPTION - FUEL REQUIREMENTS -
DIESEL ENGINE.......................1
DESCRIPTION - ENGINE OIL AND
LUBRICANTS...........

LUBRICATION & MAINTENANCE
TABLE OF CONTENTS
page page
FLUID TYPES
DESCRIPTION
DESCRIPTION - FUEL REQUIREMENTS -
DIESEL ENGINE.......................1
DESCRIPTION - ENGINE OIL AND
LUBRICANTS.........................1
DESCRIPTION - ENGINE OIL - DIESEL
ENGINES............................2
DESCRIPTION - POWER STEERING FLUID . . 3
DESCRIPTION - ENGINE COOLANT........3
DESCRIPTION - TRANSFER CASE.........4
DESCRIPTION - AXLE...................4
DESCRIPTION - MANUAL TRANSMISSION . . . 4
DESCRIPTION - AUTOMATIC
TRANSMISSION FLUID..................4
OPERATION - AUTOMATIC TRANSMISSION
FLUID...............................5FLUID CAPACITIES
SPECIFICATIONS
FLUID CAPACITIES.....................5
MAINTENANCE SCHEDULES
DESCRIPTION
DESCRIPTION........................6
MAINTENANCE SCHEDULES Ð 24±VALVE
CUMMINS TURBO DIESEL..............12
JUMP STARTING
STANDARD PROCEDURE - JUMP STARTING . 19
HOISTING
STANDARD PROCEDURE - HOISTING.......20
TOWING
STANDARD PROCEDURE - TOWING........21
FLUID TYPES
DESCRIPTION
DESCRIPTION - FUEL REQUIREMENTS -
DIESEL ENGINE
DESCRIPTION
WARNING: Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable under certain
conditions and hazardous or explosive when mixed
with diesel fuel.
Use good quality diesel fuel from a reputable sup-
plier in your Dodge truck. For most year-round ser-
vice, number 2 diesel fuel meeting ASTM
specification D-975 will provide good performance. If
the vehicle is exposed to extreme cold (below 0ÉF/-
18ÉC), or is required to operate at colder-than-normal
conditions for prolonged periods, use climatized No. 2
diesel fuel or dilute the No. 2 diesel fuel with 50%
No. 1 diesel fuel. This will provide better protection
from fuel gelling or wax-plugging of the fuel filters.
Diesel fuel is seldom completely free of water. To
prevent fuel system trouble, including fuel line freez-
ing in winter, drain the accumulated water from the
fuel/water separator using the fuel/water separator
drain provided. If you buy good-quality fuel and fol-low the cold-weather advice above, fuel conditioners
should not be required in your vehicle. If available in
your area, a high cetane ªpremiumº diesel fuel may
offer improved cold starting and warm-up perfor-
mance.
DESCRIPTION - ENGINE OIL AND LUBRICANTS
WARNING: NEW OR USED ENGINE OIL CAN BE
IRRITATING TO THE SKIN. AVOID PROLONGED OR
REPEATED SKIN CONTACT WITH ENGINE OIL.
CONTAMINANTS IN USED ENGINE OIL, CAUSED BY
INTERNAL COMBUSTION, CAN BE HAZARDOUS TO
YOUR HEALTH. THOROUGHLY WASH EXPOSED
SKIN WITH SOAP AND WATER. DO NOT WASH
SKIN WITH GASOLINE, DIESEL FUEL, THINNER, OR
SOLVENTS, HEALTH PROBLEMS CAN RESULT. DO
NOT POLLUTE, DISPOSE OF USED ENGINE OIL
PROPERLY. CONTACT YOUR DEALER OR GOVERN-
MENT AGENCY FOR LOCATION OF COLLECTION
CENTER IN YOUR AREA.
When service is required, DaimlerChrysler Corpo-
ration recommends that only Mopartbrand parts,
lubricants and chemicals be used. Mopartprovides
the best engineered products for servicing
DaimlerChrysler Corporation vehicles.
Only lubricants bearing designations defined by
the following organization should be used.
²Society of Automotive Engineers (SAE)
²American Petroleum Institute (API)
DRLUBRICATION & MAINTENANCE 0 - 1

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DODGE RAM 1500 1998 2.G Workshop Manual Oils of the SAE 5W-40 grade number are preferred
when minimum temperatures consistently fall below
-15ÉC. (Fig. 5)
DESCRIPTION - POWER STEERING FLUID
MopartATF +4, Automatic Transmission Fluid is
req

Oils of the SAE 5W-40 grade number are preferred
when minimum temperatures consistently fall below
-15ÉC. (Fig. 5)
DESCRIPTION - POWER STEERING FLUID
MopartATF +4, Automatic Transmission Fluid is
required in the power steering system. Substitute
fluids can induce power steering system failure.
MopartATF +4, Automatic Transmission Fluid
when new is red in color. The ATF is dyed red so it
can be identified from other fluids used in the vehicle
such as engine oil or antifreeze. The red color is not
permanent and is not an indicator of fluid condition.
As the vehicle is driven, the ATF will begin to look
darker in color and may eventually become brown.
This is normal.ATF+4 also has a unique odor that
may change with age. Consequently, odor and color
cannot be used to indicate the fluid condition or the
need for a fluid change.
DESCRIPTION - ENGINE COOLANT
WARNING: ANTIFREEZE IS AN ETHYLENE GLYCOL
BASE COOLANT AND IS HARMFUL IF SWAL-
LOWED OR INHALED. IF SWALLOWED, DRINK
TWO GLASSES OF WATER AND INDUCE VOMIT-
ING. IF INHALED, MOVE TO FRESH AIR AREA.
SEEK MEDICAL ATTENTION IMMEDIATELY. DO NOT
STORE IN OPEN OR UNMARKED CONTAINERS.
WASH SKIN AND CLOTHING THOROUGHLY AFTER
COMING IN CONTACT WITH ETHYLENE GLYCOL.
KEEP OUT OF REACH OF CHILDREN. DISPOSE OF
GLYCOL BASE COOLANT PROPERLY, CONTACTYOUR DEALER OR GOVERNMENT AGENCY FOR
LOCATION OF COLLECTION CENTER IN YOUR
AREA. DO NOT OPEN A COOLING SYSTEM WHEN
THE ENGINE IS AT OPERATING TEMPERATURE OR
HOT UNDER PRESSURE, PERSONAL INJURY CAN
RESULT. AVOID RADIATOR COOLING FAN WHEN
ENGINE COMPARTMENT RELATED SERVICE IS
PERFORMED, PERSONAL INJURY CAN RESULT.
CAUTION: Use of Propylene Glycol based coolants
is not recommended, as they provide less freeze
protection and less corrosion protection.
The cooling system is designed around the coolant.
The coolant must accept heat from engine metal, in
the cylinder head area near the exhaust valves and
engine block. Then coolant carries the heat to the
radiator where the tube/fin radiator can transfer the
heat to the air.
The use of aluminum cylinder blocks, cylinder
heads, and water pumps requires special corrosion
protection. MopartAntifreeze/Coolant, 5
Year/100,000 Mile Formula (MS-9769), or the equiva-
lent ethylene glycol base coolant with organic corro-
sion inhibitors (called HOAT, for Hybrid Organic
Additive Technology) is recommended. This coolant
offers the best engine cooling without corrosion when
mixed with 50% Ethylene Glycol and 50% distilled
water to obtain a freeze point of -37ÉC (-35ÉF). If it
loses color or becomes contaminated, drain, flush,
and replace with fresh properly mixed coolant solu-
tion.
CAUTION: MoparTAntifreeze/Coolant, 5
Year/100,000 Mile Formula (MS-9769) may not be
mixed with any other type of antifreeze. Mixing of
coolants other than specified (non-HOAT or other
HOAT), may result in engine damage that may not
be covered under the new vehicle warranty, and
decreased corrosion protection.
COOLANT PERFORMANCE
The required ethylene-glycol (antifreeze) and water
mixture depends upon climate and vehicle operating
conditions. The coolant performance of various mix-
tures follows:
Pure Water-Water can absorb more heat than a
mixture of water and ethylene-glycol. This is for pur-
pose of heat transfer only. Water also freezes at a
higher temperature and allows corrosion.
100 percent Ethylene-Glycol-The corrosion
inhibiting additives in ethylene-glycol need the pres-
ence of water to dissolve. Without water, additives
form deposits in system. These act as insulation
causing temperature to rise to as high as 149ÉC
(300ÉF). This temperature is hot enough to melt plas-
Fig. 4 API RATING WRAP FIGURE
Fig. 5 DIESEL OIL VISCOSITY CHART
DRLUBRICATION & MAINTENANCE 0 - 3
FLUID TYPES (Continued)

Page 18 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual FLUID ADDITIVES
DaimlerChrysler strongly recommends against the
addition of any fluids to the transmission, other than
those automatic transmission fluids listed above.
Exceptions to this policy are t

FLUID ADDITIVES
DaimlerChrysler strongly recommends against the
addition of any fluids to the transmission, other than
those automatic transmission fluids listed above.
Exceptions to this policy are the use of special dyes
to aid in detecting fluid leaks.
Various ªspecialº additives and supplements exist
that claim to improve shift feel and/or quality. These
additives and others also claim to improve converter
clutch operation and inhibit overheating, oxidation,
varnish, and sludge. These claims have not been sup-
ported to the satisfaction of DaimlerChrysler and
these additivesmust not be used.The use of trans-
mission ªsealersº should also be avoided, since they
may adversely affect the integrity of transmission
seals.
OPERATION - AUTOMATIC TRANSMISSION
FLUID
The automatic transmission fluid is selected based
upon several qualities. The fluid must provide a high
level of protection for the internal components by
providing a lubricating film between adjacent metal
components. The fluid must also be thermally stable
so that it can maintain a consistent viscosity through
a large temperature range. If the viscosity stays con-
stant through the temperature range of operation,
transmission operation and shift feel will remain con-
sistent. Transmission fluid must also be a good con-
ductor of heat. The fluid must absorb heat from the
internal transmission components and transfer that
heat to the transmission case.
FLUID CAPACITIES
SPECIFICATIONS
FLUID CAPACITIES
DESCRIPTION SPECIFICATION
FUEL TANK
Short Box (Lt. Duty) 98 L (26 gal.)*
Long Box (Lt. Duty) 132 L (35 gal.)*
ENGINE OIL WITH FILTER
3.7L 4.7 L (5.0 qts.)
4.7L 5.6 L (6.0 qts.)
5.7L 6.6 L (7.0 qts.)
5.9L DIESEL 11.4 L (12.0 qts.)
DESCRIPTION SPECIFICATION
COOLING SYSTEM
3.7L 15.4 L (16.2 qts.)**
4.7L 15.4 L (16.2 qts.)**
5.7L 15.4L (16.2 qts.)**
5.9L Diesel Engine 28L (29.5 qts.)**
POWER STEERING
Power steering fluid capacities are dependent on
engine/chassis options as well as steering gear/cooler
options. Depending on type and size of internal
cooler, length and inside diameter of cooler lines, or
use of an auxiliary cooler, these capacities may vary.
Refer to 19, Steering for proper fill and bleed
procedures.
AUTOMATIC TRANSMISSION
Service Fill - 48RE 3.8 L (4.0 qts.)
O-haul - 48RE 14-16L (29-33 pts.)L
Service Fill - 45RFE/
545RFE4X2 - 5.2 L (11.0 pts.)
4X4 - 6.2 L (13.0 pts.)
O-haul - 45RFE/545RFE 14-16 L (29-33 pts.)L
LDry fill capacity Depending on type and size of
internal cooler, length and inside diameter of cooler
lines, or use of an auxiliary cooler, these figures may
vary. (Refer to 21 - TRANSMISSION/AUTOMATIC/
FLUID - STANDARD PROCEDURE)
MANUAL TRANSMISSION
NV3500 4X2 2.27 L (4.8 pts.)
NV3500 4X4 1.99 L (4.2 pts.)
NV4500 3.79 L (8.0 pts.)
NV5600 4.50 L (9.5 pts.)
TRANSFER CASE
NV241 GENII 1.6 L (3.4 pts.)
NV243 1.6 L (3.4 pts.)
NV244 GENII 1.6 L (3.4 pts.)
NV271 1.89 L (4.0 pts.)
NV273 1.89 L (4.0 pts.)
FRONT AXLE .03 L (1 oz)
C205F 1.66 L (3.5 pts.)
9 1/4 AA 2.25 L (4.75 pts.)
DRLUBRICATION & MAINTENANCE 0 - 5
FLUID TYPES (Continued)

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