1999 DODGE RAM ECO mode
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![DODGE RAM 1999 Service Repair Manual respective differential bearings for reassembly reference.
6) Remove bolt and adjuster lock (if not previously removed)\
.
Loosen, but DO NOT remove, bearing cap bolts. Using Adjuste](/manual-img/12/56915/w960_56915-442.png "DODGE RAM 1999 Service Repair Manual respective differential bearings for reassembly reference.
6) Remove bolt and adjuster lock (if not previously removed)\
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Loosen, but DO NOT remove, bearing cap bolts. Using Adjuste")
respective differential bearings for reassembly reference.
6) Remove bolt and adjuster lock (if not previously removed)\
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Loosen, but DO NOT remove, bearing cap bolts. Using Adjuster Rotator
(C-4164), unscrew adjusters from bearing caps. See Figs. 1 and 2.
Remove bolts, bearing caps, adjusters, and differential assembly.
7) Using Holder (C-3281), hold pinion flange. Remove pinion
nut and washer. Scribe reference mark on pinion flange-to-pinion for
reassembly reference. Using appropriate puller, remove pinion flange
from pinion. Remove oil seal for pinion from axle housing. Using soft
drift punch and hammer, drive pinion from axle housing.
NOTE: Front pinion bearing, bearing race, and collapsible spacer
must be replaced after removing pinion from axle housing.
8) Drive pinion bearing races from axle housing. Remove
pinion bearing from pinion. Remove shim(s) located behind pinion
bearing on pinion. Record shim thickness for reassembly reference.
CAUTION: DO NOT remove ring gear from differential carrier unless
components must be replaced or differential carrier flange
runout must be checked.
9) If removing ring gear (and exciter ring on RWAL brake
equipped models), mount differential carrier in soft-jaw vise. Remove
and discard left-hand thread ring gear bolts. Using soft-face hammer,
drive ring gear from differential carrier. Tap exciter ring from
differential carrier, if equipped.
10) If disassembling differential carrier, rotate side gears
and align pinion gears with opening in differential carrier. Remove
pinion gears and pinion gear thrust washers. See Fig. 1. Remove side
gears and side gear thrust washers.
11) If checking differential carrier flange runout, install
differential carrier, bearing races, bearing caps and adjusters in
axle housing. Ensure components are installed in original location.
Thread adjusters into bearing caps.
12) Tighten bearing cap bolts enough to just hold bearing
caps against axle housing. Using Adjuster Rotator (C-4164), tighten
adjuster so no side play exists. Side play can be checked by prying
differential carrier to one side.
13) Install dial indicator on axle housing with stem resting
against differential carrier flange. See Fig. 2. Rotate differential
carrier and note differential carrier flange runout. Replace
differential carrier if runout exceeds .003" (.08 mm).
14) Remove dial indicator, bearing caps, adjusters, bearing
races and differential carrier. Remove differential bearings from
differential carrier (if necessary).
15) Use appropriate puller and adapter (bearing splitter) to\
remove bearing from carrier. On models with Rear Wheel Anti-Lock
(RWAL) brakes, if removing exciter ring, use hammer and soft drift to
tap exciter ring from differential carrier.
Page 460 of 1691
1) On drive shafts greater than 30" in length, measure runout
3" from transmission flange/yoke, center bearing yoke and pinion
flange using dial indicator. Maximum runout for Ram Pickup is .030" (.
76 mm) at front and rear end of drive shaft and .035" (.89 mm) at
center of drive shaft. Maximum runout for all other models is .010" (.
25 mm) at front and rear end of drive shaft and .015" (.38 mm) at
center of drive shaft.
2) For drive shafts less than 30" in length, maximum runout
for Pickup is .030" (.76 mm). Maximum runout for all other models is .\
020" (.51 mm). Replace drive shaft if maximum runout is exceeded.
BALANCING DRIVE SHAFT
1) Perform following procedure only after inspecting all
other possible causes of vibration. See INSPECTION. Drive shaft
imbalance may often be cured by disconnecting shaft, rotating it 180
degrees and reconnecting shaft to flange. Test drive to check results.
NOTE: DO NOT run engine for prolonged periods without forced
airflow across radiator. Engine or transmission may
overheat.
2) To balance drive shaft(s), begin by raising rear wheels
off ground and turning drive shaft with engine. Balance testing may be
done by marking drive shaft in 4 positions, 90 degrees apart around
shaft. Place marks about 6" forward of rear flange/yoke weld. Number
marks 1-4.
3) Install large diameter screw-type hose clamp around drive
shaft so clamp's head is in No. 1 position. Spin drive shaft with
engine and note vibrations. If there is little or no change in
vibration intensity, move clamp head to No. 2 position, and repeat
test.
4) Continue procedure until vibration is at lowest level. If
no difference is noted with clamp head moved to all 4 positions,
vibrations may not be due to drive shaft imbalance.
5) If vibration decreases but is not completely eliminated,
place a second clamp at same position, and repeat test. Combined
weight of both clamps in one position may increase vibration. If so,
rotate clamps 1/2" apart, above and below lowest vibration level
position, and repeat test.
6) Continue to rotate clamps, as necessary, until vibration
is at lowest point. If vibration can be eliminated or reduced to
acceptable level, bend back slack end of clamp so screw cannot loosen.
If vibration level is still unacceptable, leave rear clamp(s) in
place, and repeat procedure at front end of drive shaft. Road test
vehicle. On 4WD models, perform procedure on each shaft.
CHECKING VERTICAL ANGLE
One-Piece Drive Shafts
1) Raise and support vehicle so rear wheels can be rotated.
Rotate drive shaft so a pinion flange bearing cap faces downward.
Attach Inclinometer (C-4224) magnet to bearing cap, and measure drive
shaft vertical angle. See Fig. 4. Remove inclinometer.
2) Rotate drive shaft 90 degrees until drive shaft rear yoke
bearing cap faces downward. Attach inclinometer magnet to bearing cap,
and measure drive shaft vertical angle. Difference between 2 measured
angles is drive shaft rear angle. See Fig. 5. Remove inclinometer.
3) Rotate drive shaft until a slip joint yoke bearing cap
faces downward. Attach inclinometer magnet to bearing cap, and note
angle. Remove inclinometer. Rotate drive shaft 90 degrees until drive
shaft front yoke bearing cap faces downward. Attach inclinometer
magnet to bearing cap, and note angle. Remove inclinometer.
Page 594 of 1691
ELE C TR O STA TIC D IS C HAR G E W AR NIN G - B ASIC IN FO RM ATIO N
1999 D odge P ic ku p R 1500
GENERAL INFORMATION
Electrostatic Discharge (ESD) Warning - Basic Information
All Makes amd Models
* PLEASE READ THIS FIRST *
NOTE: This article is intended for general information purposes
only.
INTRODUCTION
All Electrostatic Discharge (ESD) sensitive components
contain solid state circuits (transistors, diodes, semiconductors)
that may become damaged when contacted with an electrostatic charge.
The following information applies to all ESD sensitive devices. The
ESD symbol shown in Fig. 1 may be used on schematics to indicate which
components are ESD sensitive. See Fig. 1. Although different
manufactures may display different symbols to represent ESD sensitive
devices, the handling and measuring precautions and procedures are the
same.
Fig. 1: Sample ESD Symbol
HANDLING STATIC-SENSITIVE CIRCUITS/DEVICES
Page 602 of 1691
EM IS SIO N C O NTR O L V IS U AL IN SPEC TIO N P R O CED URES
1999 D odge P ic ku p R 1500
1983-98 GENERAL INFORMATION
Emission Control Visual Inspection Procedures
All Models
* PLEASE READ THIS FIRST *
This article is provided for general information only. Not
all information applies to all makes and models. For more complete
information, see appropriate article(s) in the ENGINE PERFORMANCE
Section.
EMISSION CONTROL LABELS
The vehicle manufacturer's emission control label, also known
as the underhood tune-up label or Vehicle's Underhood Emission Control
System (VECI) label, is located in the engine compartment. Information\
regarding year model of vehicle, engine size, number of cylinders,
emission equipment or type, engine tune-up specifications, whether
vehicle was manufactured for sale in California or is a Federal
vehicle, vacuum hose routing schematic, etc., can be found on this
label. See Fig. 1.
In addition to the VECI label, some emission control
inspection and maintenance programs may require an additional label to
be affixed to the vehicle in special circumstances. For example, in
California, a Bureau Of Automotive Repair (BAR) engine label may be
affixed to the left door post. A BAR engine label is only used when
the vehicle has an engine change, approved modification or is a
Specially Constructed (SPCN) or an acceptable Gray market vehicle.
Check your state's emission control inspection and maintenance laws to
determine if a similar label is used.
Fig. 1: Typical Emission Control Label
Courtesy of General Motors Corp.
EMISSION CONTROL VISUAL INSPECTION
* PLEASE READ THIS FIRST *
NOTE: The following emission control visual inspection procedures
should be used as a guide only. When performing a visual
inspection, always follow your state's recommended
Page 628 of 1691
![DODGE RAM 1999 Service Repair Manual Talon
Coolant Replacement Interval ........... 30,000 Miles Or 24 Months
Coolant Capacity ................................. 7.4 Qts. (7.0L)\
Pressure Cap
VIN F .........................](/manual-img/12/56915/w960_56915-627.png "DODGE RAM 1999 Service Repair Manual Talon
Coolant Replacement Interval ........... 30,000 Miles Or 24 Months
Coolant Capacity ................................. 7.4 Qts. (7.0L)\
Pressure Cap
VIN F .........................")
Talon
Coolant Replacement Interval ........... 30,000 Miles Or 24 Months
Coolant Capacity ................................. 7.4 Qts. (7.0L)\
Pressure Cap
VIN F ................................................. 11-15 psi
VIN Y ................................................. 14-18 psi
Thermostat
Starts To Open
VIN F ............................................ 180
F (82C)
VIN Y ............................................ 195F (91C)
Fully Opens
VIN F ............................................ 203
F (95C)
VIN Y ........................................... 216F (102C) \
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Coolant Replacement Interval ............. 45,000 Miles Or 36 Months
Coolant Capacity ( 1)
Caravan, Town & Country, & Voyager
2.4L ...................................... ( 2) 11.2 Qts. (10.6L)
3.0L ...................................... ( 2) 13.0 Qts. (12.3L)
3.3L & 3.8L ............................... ( 2) 13.2 Qts. (12.5L)
Dakota
2.5L ............................................ 9.8 Qts. (9.3L)\
3.9L .......................................... 14.0 Qts. (13.2L)\
5.2L .......................................... 14.3 Qts. (13.5L)\
5.9L ................................................. 14.6L (13.7L)\
Durango
3.9L .......................................... 14.0 Qts. (13.2L)\
5.2L & 5.9L ...................................... 14.3 Qts. (13.5L)\
Ram Pickup
3.9L, 5.2L & 5.9L (Gasoline) .................. 20.0 Qts. (18.9L\
)
5.9L (Diesel) ................................. 24.0 Qts. (22.7L\
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8.0L .......................................... 26.0 Qts. (24.6L)\
Ram Van/Wagon
3.9L ........................................... 10.4 Qts. (9.8L)\
5.2L .......................................... 13.1 Qts. (12.4L)\
5.9L
With Rear Heater ............................ 14.1 Qts. (13.3L)\
Without Rear Heater ......................... 13.1 Qts. (12.4L)\
Pressure Cap ............................................. 14-16 psi
Thermostat
Diesel Engines
Starts To Open ..................................... 181
F (83C)
Fully Open ............................................ 203F (95C)
Gasoline Engines
Starts To Open ..................................... 192
F (89C)
Fully Opens ....................................... 220F (104C)
( 1) - Capacities listed are approximate.
( 2) - Capacity includes heater and coolant recovery tank. Add 2 qts.
(1.9L) for models equipped with rear heater.
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Page 634 of 1691
FITTINGS. Remove air cleaner, throttle body, drive belts, generator,
fan and fan pulley. Remove lower fan shroud.
CAUTION: When removing engine, DO NOT lift engine by intake manifold.
5) Remove intake manifold. See INTAKE MANIFOLD. Raise and
support vehicle. Remove starter. Remove exhaust pipe and heat shields.
Disconnect transmission shift linkage. Remove crank sensor.
6) On A/T models, remove transmission inspection cover. Mark
torque converter-to-flexplate position for installation reference.
Remove torque converter-to-flexplate bolts. On M/T models, disconnect
clutch release mechanism at clutch housing.
7) Attach engine hoist to cylinder heads (at intake manifold
flanges). On all models, support transmission using a floor jack.
Remove transmission or clutch housing-to-cylinder block bolts. Remove
engine mount bolts. Remove engine out front of vehicle.
Installation
To install, reverse removal procedure. Tighten bolts/nuts to
specification. See TORQUE SPECIFICATIONS table. On A/T models, ensure
reference marks on torque converter and flexplate are aligned.
Evacuate and charge A/C system.
Removal ( Dakota 2WD, Durango 2WD, Grand Cherokee & Ram
Pickup)
1) Release fuel pressure. See FUEL PRESSURE RELEASE.
Disconnect and remove battery. On all except Pickup, scribe hood
hinges for installation reference and remove hood.
2) On all models, drain cooling system. Disconnect coolant
hoses. Remove radiator, fan and shroud. Discharge A/C system (if
equipped) using approved refrigerant recovery/recycling equipment.
Disconnect A/C lines, and plug openings. On Pickup, remove upper core
support, transmission cooler and A/C condenser. On all models, remove
belt, air cleaner, vacuum lines, distributor cap and wiring.
3) Disconnect necessary electrical wiring. Disconnect fuel
lines. See FUEL LINE DISCONNECT FITTINGS. Remove throttle body and
linkage. Remove intake manifold. Remove starter, generator, charcoal
canister and horns. Disconnect power steering hoses (if equipped).
Raise and support vehicle. Drain oil. Disconnect exhaust pipe at
exhaust manifold.
4) On A/T models, remove transmission housing inspection
plate. Mark torque converter-to-flexplate position for installation
reference. Remove torque converter-to-flexplate bolts. Remove bracket
for transmission cooler lines.
NOTE: It may be necessary to remove manual transmission if
transmission cannot be supported using floor jack.
5) On M/T models, disconnect clutch release mechanism at
clutch housing. On all models, support transmission using a floor
jack. Remove transmission or clutch housing-to-cylinder block bolts.
Install engine lifting fixture, and attach chain.
CAUTION: When removing engine, DO NOT lift engine by intake manifold.
6) On Ram Pickup and Grand Cherokee, remove front engine
mount bolts. Remove engine from vehicle. On Dakota 2WD and Durango 2WD
models, remove front engine mount through-bolts. See Fig. 3. Remove
engine from vehicle.
Installation
To install, reverse removal procedure. Tighten bolts/nuts to
specification. See TORQUE SPECIFICATIONS table. On A/T models, ensure
Page 809 of 1691
* E XH AU ST S YSTE M U NIF O RM IN SPEC TIO N G UID ELIN ES *
1 999 D odge P ic ku p R 1500
GENERAL INFORMATION
Exhaust Systems Motorist Assurance Program
Standards For Automotive Repair
All Makes and Models
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
CONTENTS
Motorist Assurance Program (MAP)
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
OVERVIEW OF SERVICE REQUIREMENTS AND SUGGESTIONS
Exhaust
CATALYTIC CONVERTERS
EXHAUST AND TAIL PIPES
EXHAUST CONNECTIONS
HANGERS
HEAT RISERS (MECHANICAL EFE DEVICES)
HEAT SHIELDS
MANIFOLDS (CAST AND TUBE TYPE)
MECHANICAL EFE DEVICES
MUFFLERS AND RESONATORS
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
The Motorist Assurance Program is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
Our organization's mission is to strengthen the relationship
between the consumer and the auto repair industry. We produce
materials that give motorists the information and encouragement to
take greater responsibility for their vehicles-through proper,
manufacturer-recommended, maintenance. We encourage participating
service and repair shops (including franchisees and dealers) to adopt
(1) a Pledge of Assurance to their Customers and (2) the Motorist
Assurance Program Standards of Service. All participating service
providers have agreed to subscribe to this Pledge and to adhere to the
promulgated Standards of Service demonstrating to their customers that
they are serious about customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made and the results communicated to the\
customer according to industry standards. Given that the industry did
not have such standards, the Motorist Assurance Program successfully
promulgated industry inspection communication standards in 1994-95 for
the following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical Systems.
Further, revisions to all of these inspection communication standards
are continually re-published. In addition to these, standards for
Drive Train and Transmissions have recently been promulgated.
Participating shops utilize these Uniform Inspection & Communication
Page 891 of 1691
![DODGE RAM 1999 Service Repair Manual Limited Slip
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Differential Model 248 (4WD) 7.3 Pts. (3")
Limited Slip
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Differential Model 248 (4WD) 7.3 Pts. (3.4L)
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Model 267 (2WD) 7 Pts. (3.3L)
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Model 267 (4WD) 7.8 Pts. (3.6L)
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Model 286 (2WD) 6.8 Pts. (3.2L)
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Model 286 (4WD) 10.1 Pts. (4.8L)
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Front Axle Model 216 6.8 Pts. (3.6L)
Lubricant
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Model 248 7.6 Pts. (3.6L)
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Transfer Case NV231 HD 2.5 Pts. (1.2L)
Fluid
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Power Take NV021 4.6 Pts. (2.1L)
Off Adapter
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Power Drained 2.7 Pts. (1.3L)
Steering
Fluid
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A/C Charge Capacity 32 Oz. (.9Kg)
Refrigerant
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Refrigerant A/C System Capacity 7.75 Oz. (230ML)
Oil
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Fuel Tank 119" & 139" Wheelbase Vehicles 26 Gal. (98L)
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All Others 35 Gal. (132L)
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1) - Capacities are recommended or calculated levels. Always use
dipstick (if available) to measure level.
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WHEEL & TIRE SPECIFICATIONS
TIRE REPLACEMENT
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for wear and
correct inflation pressure. Chrysler strongly recommends that you use
tires equivalent to the originals in quality and performance when
replacement is needed. Failure to use equivalent replacement tires may
adversely affect the safety, handling and ride of your vehicle. We
recommend that you contact your original equipment tire dealer on any
questions you may have on tire specifications or capability.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS TABLE\
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Lug Nut Ft. Lbs. (N.m)
BR1500 (5 Stud Wheel) ........................... 95 (130)
BR2500 (8 Stud Wheel) ........................... 135 (180)