tow DODGE RAM 1999 Service Repair Manual
[x] Cancel search | Manufacturer: DODGE, Model Year: 1999, Model line: RAM, Model: DODGE RAM 1999Pages: 1691, PDF Size: 40.34 MB
Page 1189 of 1691
Ram Pickup, Ram Van & Ram Wagon ........... (2) .............. ( 2)
Town & Country
3.3L & 3.8L ............................. ( 2) .............. ( 2)
Voyager
2.4L
A/C & Generator ...................... 190 (86) ...... 115 (52\
)
Power Steering ....................... 140 (64) ....... 90 (41\
)
3.0L
A/C .................................. 150 (68) ....... 80 (36\
)
Generator & Power Steering ............. ( 2) .............. ( 2)
3.3L .................................... ( 2) .............. ( 2)
( 1) - Used belt is a belt that has been in service for more than 15
minutes.
( 2) - Automatic belt tensioner is used. Belt tension adjustment is not
required.
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MECHANICAL CHECKS
ENGINE COMPRESSION
Ensure battery is fully charged. Warm engine to normal
operating temperature. Disconnect wire at ignition coil to prevent
engine from starting. Check engine compression with all spark plugs
removed and throttle wide open.
COMPRESSION SPECIFICATIONS
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Application Specification
Compression Ratio
Caravan
2.4L ...................................................... 9.4:1
3.0L ...................................................... 8.9:1
3.3L ...................................................... 8.9:1
3.8L ...................................................... 9.6:1
Dakota & Durango ........................................... 9.1:1
Ram Pickup
3.9L, 5.2L & 5.9L (Gasoline) .............................. 9.1:1\
5.9L (Diesel) ............................................ 17.5:1\
8.0L ...................................................... 8.4:1
Ram Van & Ram Wagon ........................................ 9.1:1
Town & Country
3.3L ...................................................... 8.9:1
3.8L ...................................................... 9.6:1
Voyager
2.4L ...................................................... 9.4:1
3.0L ...................................................... 8.9:1
3.3L ...................................................... 8.9:1
Normal Compression Pressure
Caravan
2.4L ............................. 170-225 psi (11.9-15.7 kg/cm
)
3.0L ...................................... 178 psi (12.5 kg/cm)
3.3L & 3.8L ................................................. ( 1)
Dakota
2.5L .............................. 120-150 psi (8.4-10.5 kg/cm
)
3.9L, 5.2L & 5.9L ........................................... ( 1)
Durango ...................................................... ( 1)
Ram Pickup, Ram Van & Ram Wagon .............................. ( 1)
Town & Country ............................................... ( 1)
Voyager
Page 1190 of 1691
2.4L ............................. 170-225 psi (11.9-15.7 kg/cm)
3.0L ...................................... 178 psi (12.5 kg/cm)
3.3L ........................................................ ( 1)
Minimum Compression Pressure
Caravan, Town & Country, & Voyager .......... 100 psi (7.0 kg/cm
)
Dakota
2.5L ........................................................ ( 1)
3.9L, 5.2L & 5.9L .......................... 100 psi (7.0 kg/cm
)
Durango ..................................... 100 psi (7.0 kg/cm)
Ram Pickup
3.9L, 5.2L & 5.9L (Gasoline) & 8.0L ........ 100 psi (7.0 kg/cm
)
5.9L (Diesel) ............................................... ( 1)
Ram Van & Ram Wagon ......................... 100 psi (7.0 kg/cm
)
Maximum Variation Between Cylinders
Caravan, Town & Country & Voyager ..................... 25 Percent
Dakota
2.5L ........................................ 30 psi (2.1 kg/cm
)
3.9L, 5.2L & 5.9L ........................................... ( 1)
Durango ...................................................... ( 1)
Ram Pickup, Ram Van & Ram Wagon .............................. ( 1)
( 1) - Information is not available from manufacturer.
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VALVE CLEARANCE
Gasoline Models
All engines are equipped with hydraulic lifters. No
adjustments are required.
5.9L Diesel (Ram Pickup)
Valve adjustment is recommended every 150 months or 150,000
miles during normal service, every 135,000 miles during severe
service. Severe service is described as frequent short trip operation
of less than 5 miles, long periods of engine idling, trailer towing,
police, taxi, local delivery service, or operating in dusty or
excessively hot conditions. See VALVE CLEARANCE SPECIFICATIONS
(DIESEL) table.
VALVE CLEARANCE SPECIFICATIONS (DIESEL) ( 1)
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Application In. (mm)\
Intake Valve ............................................ .010 (.25)\
Exhaust Valve ........................................... .020 (.51)\
(1) - Adjust valves with engine temperature less than 140
F (60C). \
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IGNITION SYSTEM
IGNITION COIL
IGNITION COIL RESISTANCE - Ohms @ 70-80F (21-27C) \
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Application Primary Secondary
Caravan
2.4L
Diamond ( 1)( 2) ............... .53-.65 .......... 11,500-13,500
Weastec ( 1) .................. .45-.65 .......... 10,900-14,700
3.0L ............................. ( 3) ..................... ( 3)
Page 1191 of 1691
3.3L & 3.8L ................... .45-.65 ............ 7000-15,800
Dakota & Durango
Diamond (1)( 2) ................ .97-1.18 ......... 11,300-15,300
Toyodenso ( 1) ................. .95-1.20 ......... 11,300-13,300
Ram Pickup
Except 8.0L
Diamond ( 1)( 2) ............... .97-1.18 ......... 11,300-15,300
Toyodenso ( 1) ................ .95-1.20 ......... 11,300-13,300
8.0L .......................... .53-.65 .......... 10,900-14,700
Ram Van & Ram Wagon
Diamond ( 1)( 2) ................ .97-1.18 ......... 11,300-15,300
Toyodenso ( 1) ................. .95-1.20 ......... 11,300-13,300
Town & Country .................. .45-.65 ............ 7000-15,800
Voyager
2.4L
Diamond ( 1)( 2) ............... .53-.65 .......... 11,500-13,500
Weastec ( 1) .................. .45-.65 .......... 10,900-14,700
3.0L ............................ ( 3) ...................... ( 3)
3.3L .......................... .45-.65 ............ 7000-15,800
( 1) - This is the manufacturer of ignition coil.
( 2) - Brass terminals.
( 3) - Information is not available from manufacturer.
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HIGH TENSION WIRE RESISTANCE
HIGH TENSION WIRE RESISTANCE \
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Application Ohms
Caravan ( 1)
2.4L
Cylinder No. 1 Or 4 ........................................ 4200
Cylinder No. 2 Or 3 ........................................ 3200
3.0L
Cylinder No. 1 ........................................... 14,000
Cylinder No. 2 ........................................... 10,400
Cylinder No. 3 ........................................... 14,900
Cylinder No. 4 ........................................... 11,500
Cylinder No. 5 ........................................... 17,500
Cylinder No. 6 ........................................... 10,300
Ignition Coil Wire ....................................... 11,100
3.3L & 3.8L
Cylinder No. 1 ........................................... 18,500
Cylinder No. 2 ........................................... 15,500
Cylinder No. 3 ........................................... 20,400
Cylinder No. 4 ........................................... 21,200
Cylinder No. 5 ........................................... 27,700
Cylinder No. 6 ........................................... 26,700
Dakota & Durango
All High Tension Wires ....................................... ( 2)
Ram Pickup, Ram Van & Ram Wagon
All High Tension Wires ....................................... ( 2)
Town & Country ( 1)
Cylinder No. 1 ............................................ 18,500
Cylinder No. 2 ............................................ 15,500
Cylinder No. 3 ............................................ 20,400
Cylinder No. 4 ............................................ 21,200
Cylinder No. 5 ............................................ 27,700
Cylinder No. 6 ............................................ 26,700
Voyager ( 1)
2.4L
Page 1192 of 1691
Cylinder No. 1 Or 4 ........................................ 4200
Cylinder No. 2 Or 3 ........................................ 3200
3.0L
Cylinder No. 1 ........................................... 14,000
Cylinder No. 2 ........................................... 10,400
Cylinder No. 3 ........................................... 14,900
Cylinder No. 4 ........................................... 11,500
Cylinder No. 5 ........................................... 17,500
Cylinder No. 6 ........................................... 10,300
Ignition Coil Wire ....................................... 11,100
3.3L
Cylinder No. 1 ........................................... 18,500
Cylinder No. 2 ........................................... 15,500
Cylinder No. 3 ........................................... 20,400
Cylinder No. 4 ........................................... 21,200
Cylinder No. 5 ........................................... 27,700
Cylinder No. 6 ........................................... 26,700
(1) - Maximum wire resistance is listed according to high tension wire
application. For cylinder identification, see FIRING ORDER &
TIMING MARKS.
( 2) - Resistance should be 250-1000 ohms per one inch or 3000-12,000
ohms per 12 inches.
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SPARK PLUGS
SPARK PLUG TYPE ( 1) \
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Application Champion No.
Caravan
2.4L ..................................................... RC12YC5
3.0L ..................................................... RN11YC4
3.3L & 3.8L ............................................. RN14PMP5
Dakota
2.5L ..................................................... RC12ECC
3.9L, 5.2L & 5.9L ........................................ RC12LC4
Durango .................................................... RC12LC4
Ram Pickup
3.9L, 5.2L & 5.9L ........................................ RC12LC4
8.0L ...................................................... QC9MC4
Ram Van & Ram Wagon ........................................ RC12LC4
Town & Country ............................................ RN14PMP5
Voyager
2.4L ..................................................... RC12YC5
3.0L ..................................................... RN11YC4
3.3L .................................................... RN14PMP5
(1) - Check spark plug application on underhood vehicle emission
control label. If application differs from application listed,
use application on underhood vehicle emission control label.
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SPARK PLUG SPECIFICATIONS ( 1) \
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Application Gap Torque
In. (mm) Ft. Lbs. (N.m\
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Caravan
2.4L ................ .048-.053 (1.22-1.35) ............ 20 (27\
)
3.0L ................ .039-.044 (1.00-1.12) ............ 20 (27\
)
3.3L & 3.8L ......... .048-.053 (1.22-1.35) ............ 20 (27\
)
Page 1193 of 1691
![DODGE RAM 1999 Service Repair Manual Dakota
2.5L ....................... .035 (.89) ................ 30 (41\
)
3.9L, 5.2L & 5.9L .......... .040 (1.01) ............... 30 (41\
)
Durango ...................... .040 (1.01) .](/img/12/56915/w960_56915-1192.png "DODGE RAM 1999 Service Repair Manual Dakota
2.5L ....................... .035 (.89) ................ 30 (41\
)
3.9L, 5.2L & 5.9L .......... .040 (1.01) ............... 30 (41\
)
Durango ...................... .040 (1.01) .")
Dakota
2.5L ....................... .035 (.89) ................ 30 (41\
)
3.9L, 5.2L & 5.9L .......... .040 (1.01) ............... 30 (41\
)
Durango ...................... .040 (1.01) ............... 30 (41\
)
Ram Pickup
3.9L, 5.2L & 5.9L .......... .040 (1.01) ............... 30 (41\
)
8.0L ....................... .045 (1.14) ............... 30 (41\
)
Ram Van & Ram Wagon .......... .040 (1.01) ............... 30 (41\
)
Town & Country ........... .048-.053 (1.22-1.35) ......... 20 (27\
)
Voyager
2.4L ................... .048-.053 (1.22-1.35) ......... 20 (27\
)
3.0L ................... .039-.044 (1.00-1.12) ......... 20 (27\
)
3.3L ................... .048-.053 (1.22-1.35) ......... 20 (27\
)
(1) - Check spark plug gap specification on underhood vehicle emission
control label. If specification differs from that listed above,
use specification on underhood vehicle emission control label.
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FIRING ORDER & TIMING MARKS
Fig. 1: Firing Order 2.4L 4-Cyl. (Caravan & Voyager)
Page 1195 of 1691
Fig. 3: Firing Order & Distributor Rotation 3.0L V6 (Caravan &
Voyager)
Fig. 4: Firing Order 3.3L & 3.8L V6 (Caravan, Town & Country, &
Voyager)
Page 1199 of 1691
Caravan
2.4L & 3.0L ............ (2) 43-53 (3.0-3.7) ............... ( 3)
3.3L
Flex-Fuel ............. ( 2) 50-60 (3.5-4.2) ............... ( 3)
Except Flex-Fuel ...... ( 2) 43-53 (3.0-3.7) ............... ( 3)
3.8L ................... ( 2) 43-53 (3.0-3.7) ............... ( 3)
Dakota & Durango ......... ( 1) 44-54 (3.0-3.8) ........... .5 (24)
Ram Pickup, Ram Van
& Ram Wagon ............. ( 1) 44-54 (3.0-3.8) ........... .5 (24)
Town & Country
3.3L
Flex-Fuel ............. ( 2) 50-60 (3.5-4.2) ............... ( 3)
Except Flex-Fuel ...... ( 2) 43-53 (3.0-3.7) ............... ( 3)
3.8L ................... ( 2) 43-53 (3.0-3.7) ............... ( 3)
Voyager
2.4L & 3.0L ............ ( 2) 43-53 (3.0-3.7) ............... ( 3)
3.3L
Flex-Fuel ............. ( 2) 50-60 (3.5-4.2) ............... ( 3)
Except Flex-Fuel ...... ( 2) 43-53 (3.0-3.7) ............... ( 3)
( 1) - Manufacturer lists fuel pressure with engine idling.
( 2) - Manufacturer lists fuel pressure with engine off, ignition on
and using scan tool to activate fuel pump.
( 3) - Information is not available from manufacturer.
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FUEL INJECTION PUMP & FUEL TRANSFER PUMP (DIESEL)
NOTE: For fuel injection pump timing, see appropriate ON-VEHICLE
ADJUSTMENTS article.
FUEL INJECTION PUMP PERFORMANCE (DIESEL)
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Application Output Pressure psi (kg/cm)
Ram Pickup 5.9L ................................................ ( 1)
( 1) - Pressure testing procedure and output pressure is not available
from manufacturer.
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NOTE: For testing of fuel transfer pump, see appropriate BASIC
DIAGNOSTIC PROCEDURES article.
INJECTOR OPENING PRESSURE (DIESEL)
INJECTOR OPENING PRESSURE (DIESEL) \
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Application psi (kg/cm)
Ram Pickup 5.9L ......................................... 4500 (316)\
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INJECTOR RESISTANCE
INJECTOR RESISTANCE \
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Application Ohms @ 68F (20C)
All Models ................................................... 10-16
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Page 1200 of 1691
IDLE SPEED & MIXTURE
NOTE: On all except diesel models, idle speed and mixture are
controlled by Powertrain Control Module (PCM). No adjustment
is required.
IDLE SPEED SPECIFICATIONS
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Application RPM
Gasoline Models ................................................ ( 1)
Diesel Models .................................................. ( 2)
( 1) - Idle speed is controlled by Powertrain Control Module PCM) and
idle air control motor. Idle speed is nonadjustable.
( 2) - Idle speed is controlled by PCM. Idle speed is nonadjustable.
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THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED SPECIFICATIONS \
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Application RPM
Caravan
2.4L ( 2)
1000 Miles Or Less .................................. ( 3) 500-875
More Than 1000 Miles ................................ ( 3) 550-875
3.0L ( 2)
1000 Miles Or Less .................................. ( 3) 560-910
More Than 1000 Miles ................................ ( 3) 610-910
3.3L & 3.8L ( 2)
1000 Miles Or Less .................................. ( 3) 525-875
More Than 1000 Miles ................................ ( 3) 575-875
Dakota
2.5L ..................................................... 500-900
3.9L, 5.2L & 5.9L .................................... ( 1) 500-900
Durango ................................................ ( 1) 500-900
Ram Pickup
3.9L, 5.2L & 5.9L (Gasoline) ......................... ( 1) 500-900
8.0L ......................................................... ( 4)
Ram Van & Ram Wagon .................................... ( 1) 500-900
Town & Country ( 2)
1000 Miles Or Less ................................... ( 3) 525-875
More Than 1000 Miles ................................. ( 3) 575-875
Voyager
2.4L ( 2)
1000 Miles Or Less .................................. ( 3) 500-875
More Than 1000 Miles ................................ ( 3) 550-875
3.0L ( 2)
1000 Miles Or Less .................................. ( 3) 560-910
More Than 1000 Miles ................................ ( 3) 610-910
3.3L ( 2)
1000 Miles Or Less .................................. ( 3) 525-875
More Than 1000 Miles ................................ ( 3) 575-875
( 1) - Specification listed with Air Metering Fitting (6714) installed.
( 2) - Specification listed in accordance with vehicle mileage.
( 3) - Specification listed with Air Metering Fitting (6457) installed.
( 4) - Does not apply to this application.
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THROTTLE POSITION SENSOR
Page 1201 of 1691
![DODGE RAM 1999 Service Repair Manual THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS \
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THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS \
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Throttle Opening Volts
Caravan, Town & Country, & Voyager (1)( 2)
At Idle ................................................. .38-1.20
At Full Throttle ....................................... 3.10-4.40
Dakota & Durango ( 1)( 2)
At Idle .................................................. .26-.90
At Full Throttle .................................. Less Than 4.50
Ram Pickup ( 1)( 2)
3.9L, 5.2L, 5.9L (Gasoline) & 8.0L ( 1)( 2)
At Idle ................................................. .35-.90
At Full Throttle ................................. Less Than 4.50
5.9L (Diesel) ................................................ ( 3)
Ram Van & Ram Wagon ( 1)( 2)
At Idle .................................................. .35-.90
At Full Throttle .................................. Less Than 4.50
( 1) - Measure voltage at center terminal on throttle position sensor
with ignition on.
( 2) - Voltage should increase smoothly when moving throttle from idle
to full throttle.
( 3) - Diesel Accelerator Pedal Position Sensor (APPS) is not
adjustable. Voltage should be less than one volt at idle and
more than 3 volts at full throttle.
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Page 1209 of 1691
STA R TE R
1999 D odge P ic ku p R 1500
1999 STARTING & CHARGING SYSTEMS
CHRY - Starters - Except Avenger & Sebring Coupe
Breeze, Caravan, Cirrus, Concorde, Dakota, Durango, Intrepid,
LHS, Neon, Ram Pickup, Ram Van, Ram Wagon, Sebring
Convertible, Stratus, Town & Country, Voyager, 300M
NOTE: For models not covered in this article, see STARTERS -
AVENGER, SEBRING COUPE & TALON article.
DESCRIPTION
Bosch, Melco and Mitsubishi starters use a planetary gear
train that transmits power from starter motor to pinion shaft. Six
permanent magnets (Bosch and Melco starters) or 4 permanent magnets
(Mitsubishi starters) are used, eliminating potential field wire-to-
frame short circuits.
Nippondenso starter is a 4-field, 4-brush, 12-volt motor with
a solenoid mounted within the housing. The unit has a 2-to-1 reduction
gear set in a die cast aluminum housing. Starter has serviceable gear
and clutch assembly only. If starter solenoid fails, entire starter
motor must be replaced.
All models use a starter relay in starter circuit between the
battery and starter solenoid terminal. Automatic Transmission (A/T)
equipped vehicles use a Park/Neutral Position (PNP) switch or a
Transmission Range (TR) sensor to provide ground path for the starter
relay. Manual Transmission (M/T) equipped vehicles use a clutch pedal
position switch to provide battery voltage from ignition switch to the
starter relay. See WIRING DIAGRAMS.
STARTER APPLICATIONS - CARS
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Model Type
Breeze & Stratus 2.0L ........................................ Bosch
Cirrus, Sebring Convertible & Stratus
2.4L ................................................. Nippondenso
2.5L ....................................................... Melco
Concorde, Intrepid, LHS & 300M
2.7L ....................................................... Melco
3.3L & 3.5L .......................................... Nippondenso
Neon ......................................................... Bosch
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STARTER APPLICATIONS - TRUCKS \
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Model Type
Caravan, Town & Country, & Voyager ..................... Nippondenso
Dakota & Durango
2.5L .................................................. Mitsubishi
3.9L & 5.2L .......................................... Nippondenso
Ram Pickup, Ram Van & Ram Wagon ........................ Nippondenso
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TROUBLE SHOOTING
NOTE: See TROUBLE SHOOTING article in GENERAL INFORMATION.