1999 DODGE RAM Service Repair Manual

check transmission fluid child lock fuse chart rims refrigerant type brake rotor

Page 1185 of 1691

DODGE RAM 1999 Service Repair Manual Spark Plugs
Normal Service ...................... 30 ................ 30,000
Severe Service ...................... (3) ............... 30,000
Spark Plug Wires
Normal Service ...........

Spark Plugs
Normal Service ...................... 30 ................ 30,000
Severe Service ...................... (3) ............... 30,000
Spark Plug Wires
Normal Service ...................... 60 ................ 60,000
Severe Service ...................... ( 3) ............... 60,000
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service ...................... 24 ................ 24,000
Severe Service ...................... ( 3) ............... 12,000
Manual Transmission Fluid ............. ( 6) .................. ( 6)
Transfer Case Fluid (4WD)
Normal Service ...................... 36 ................ 36,000
Severe Service ...................... ( 3) ............... 36,000
Front Differential Fluid (4WD) ( 7)
Severe Service ...................... ( 3) ............... 12,000
Rear Differential Fluid ( 7)
Severe Service ...................... ( 3) ............... 12,000
Repack Front Wheel Bearings (2WD)
Normal Service ....................... 18 ............... 18,000
Severe Service ...................... ( 3) ............... 24,000
( 1) - Medium-duty vehicles apply to 2500 and 3500 Calif. models with
8.0L engine.
( 2) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, off-highway operation, snow removal operation,
or operating in dusty or excessively hot conditions.
( 3) - Monthly interval is not available from manufacturer.
( 4) - Inspect air filter every 15,000 miles and replace as necessary.
Replace at 30,000 miles unless previously replaced during
inspection.
( 5) - Replace coolant at 36,000 miles or 36 months whichever occurs
first. Replace coolant at 36 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 6) - Service interval is not available from manufacturer.
( 7) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (RAM PICKUP - HEAVY-DUTY - GASOLINE) ( 1)( 2)\
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Component Months Miles
Air Filter
5.9L
Normal Service .................... 24 ................. 24,000
Severe Service ................... ( 3) ............. ( 4) 12,000
8.0L ............................... 12 ................. 12,000
Air Injection Pump Filter
Normal Service ..................... 24 ................. 24,000
Severe Service .................... ( 3) ............. ( 4) 12,000
Coolant ............................. ( 5) .................... ( 5)
EGR Valve (5.9L Only) ( 6)
Normal Service ..................... 60 ................. 60,000
Severe Service .................... ( 3) ................. 60,000
Engine Oil
Normal Service ..................... 6 .................... 6000
Severe Service .................... ( 3) ................... 3000
Engine Oil Filter

Page 1186 of 1691

DODGE RAM 1999 Service Repair Manual 5.9L
Normal Service .................... 12 ................. 12,000
Severe Service ................... (3) ................... 6000
8.0L
Normal Service .................... 6

5.9L
Normal Service .................... 12 ................. 12,000
Severe Service ................... (3) ................... 6000
8.0L
Normal Service .................... 6 .................... 6000
Severe Service ................... ( 3) ................... 3000
PCV Valve (5.9L Only)
Normal Service ..................... 60 ................. 60,000
Severe Service ( 7) ................ ( 3) ................. 30,000
Distributor Cap & Rotor (5.9L Only)
Normal Service ..................... 60 ................. 60,000
Severe Service .................... ( 3) ................. 60,000
Spark Plugs
Normal Service ..................... 30 ................. 30,000
Severe Service .................... ( 3) ................. 30,000
Spark Plug Wires
Normal Service ..................... 60 ................. 60,000
Severe Service .................... ( 3) ................. 60,000
Oxygen Sensor (5.9L Only)
Normal Service ..................... 82 ................. 82,500
Severe Service ..................... ( 3) ................ 82,500
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service ..................... 24 ................. 24,000
Severe Service ..................... ( 3) ................ 12,000
Manual Transmission Fluid ............ ( 8) ................... ( 8)
Transfer Case Fluid (4WD)
Normal Service ..................... 36 ................. 36,000
Severe Service ..................... ( 3) ................ 18,000
Front Differential Fluid (4WD) ( 9)
Severe Service ..................... ( 3) ................ 12,000
Rear Differential Fluid ( 9) .......... ( 3) ................ 12,000
Repack Front Wheel Bearings
2WD
Normal Service .................... 24 ................. 24,000
Severe Service .................... ( 3) .................. 9000
4WD
Normal Service .................... 18 ................. 18,000
Severe Service .................... ( 3) .................. 6000
( 1) - Heavy-duty vehicles apply to 2500 and 3500 Federal models with
8.0L engine and all 3500 models with 5.9L gasoline engine.
( 2) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, off-highway operation, snow removal operation,
or operating in dusty or excessively hot conditions.
( 3) - Monthly interval is not available from manufacturer.
( 4) - Inspect filter every 12,000 miles and replace as necessary.
Replace at 24,000 miles unless previously replaced during
inspection.
( 5) - Replace coolant at 36,000 miles or 36 months whichever occurs
first. Replace coolant at 36 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 6) - If equipped with EGR valve, clean EGR passages when replacing
EGR valve.
( 7) - Inspect and replace as necessary. Replace PCV valve at 60,000
miles.
( 8) - Service interval is not available from manufacturer.
( 9) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.

Page 1187 of 1691

$DODGE RAM 1999 Service Repair Manual ��\ ��\ ��\ ��\ ��\ ��\ ��\ �� REPLACEMENT INTERVALS (RAM PICKUP - MEDIUM & H$

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REPLACEMENT INTERVALS (RAM PICKUP - MEDIUM & HEAVY DUTY - 5.9L
DIESEL) (1)
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Component Months Miles
Air Filter ............................... ( 2) ............... ( 2)
Coolant .................................. ( 3) ............... ( 3)
Engine Oil & Filter
Normal Service .......................... 6 ............... 7500
Severe Service ......................... ( 4) .............. 3750
Fuel Filter
Normal Service .......................... 12 ............ 15,000
Severe Service ......................... ( 4) .............. 7500
Valve Clearance Adjustment ............... ( 5) ............... ( 5)
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... ( 4) ............ 15,000
Manual Transmission Fluid ................ ( 6) ............... ( 6)
Transfer Case Fluid (4WD)
Normal Service .......................... 36 ............ 45,000
Severe Service ......................... ( 4) ............ 36,000
Front Differential Fluid (4WD) ( 7)
Severe Service ......................... ( 4) ............ 15,000
Rear Differential Fluid ( 7)
Severe Service ......................... ( 4) ............ 15,000
Repack Front Wheel Bearings (2WD)
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... ( 4) ............ 30,000
Normal Service .......................... 48 ............ 48,000
Severe Service ......................... ( 4) ............ 48,000
( 1) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, off-highway operation, snow removal operation,
or operating in dusty or excessively hot conditions.
( 2) - Service interval is not available from manufacturer. Use filter-
minder on top of air cleaner housing to determine condition of
air filter. If filter-minder is in the Red zone, replace air
filter. Reset filter-minder by depressing button on top of
filter-minder.
( 3) - Replace coolant at 30,000 miles or 24 months whichever occurs
first. Replace coolant at 24 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 4) - Monthly interval is not available from manufacturer.
( 5) - Does not require routine adjustments.
( 6) - Service interval is not available from manufacturer.
( 7) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (RAM VAN & RAM WAGON) ( 1)\
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Component Months Miles
Air Filter
Normal Service ................... 24 ................... 30,000
Severe Service ................... ( 2) .............. ( 3) 15,000

Page 1188 of 1691

DODGE RAM 1999 Service Repair Manual Coolant ............................ (4) ..................... ( 4)
Engine Oil
Normal Service .................... 6 ..................... 7500
Severe Service ................... ( 2) .

Coolant ............................ (4) ..................... ( 4)
Engine Oil
Normal Service .................... 6 ..................... 7500
Severe Service ................... ( 2) .................... 3000
Engine Oil Filter
Normal Service ................... 12 ................... 15,000
Severe Service ................... ( 2) .................... 6000
PCV Valve ( 5)
Normal Service ................... 48 ................... 60,000
Severe Service ................... ( 2) .................. 30,000
Spark Plugs
Normal Service ................... 24 ................... 30,000
Severe Service ................... ( 2) .................. 30,000
Spark Plug Wires
Normal Service ................... 48 ................... 60,000
Severe Service ................... ( 2) .................. 60,000
Automatic Transaxle Fluid,
Filter & Band Adjustment .......... ( 6) ..................... ( 6)
Rear Differential Fluid ( 7)
Severe Service ................... ( 2) .................. 12,000
Repack Front Wheel Bearings
Normal Service ................... 18 ................... 22,500
Severe Service ................... ( 2) .................. 21,000
( 1) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, or operating in dusty or excessively hot
conditions.
( 2) - Monthly interval is not available from manufacturer.
( 3) - Inspect air filter every 15,000 miles and replace as necessary.
Replace at 30,000 miles unless previously replaced during
inspection.
( 4) - Replace coolant at 45,000 miles or 36 months whichever occurs
first. Replace coolant at 36 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 5) - Inspect at scheduled interval and replace as necessary.
( 6) - Normal service interval is not available from manufacturer.
Under severe service, change fluid, filter and adjust bands
every 12,000 miles.
( 7) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.
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BELT ADJUSTMENT (Tension In Lbs. (kg) Using Belt Tension Gauge)\
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Application New Belt (1) Used Belt
Caravan
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 & 3.8L ............................. ( 2) .............. ( 2)
Dakota
2.5L .................................. 200 (91) ...... 160 (73\
)
3.9L, 5.2L & 5.9L ....................... ( 2) .............. ( 2)
Durango
3.9L, 5.2L & 5.9L ....................... ( 2) .............. ( 2)

Page 1189 of 1691

DODGE RAM 1999 Service Repair Manual Ram Pickup, Ram Van & Ram Wagon ........... (2) .............. ( 2)
Town & Country
3.3L & 3.8L ............................. ( 2) .............. ( 2)
Voyager
2.4L
A/C & Generator .....

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

DODGE RAM 1999 Service Repair Manual 2.4L ............................. 170-225 psi (11.9-15.7 kg/cm)
3.0L ...................................... 178 psi (12.5 kg/cm)
3.3L .................................................

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

DODGE RAM 1999 Service Repair Manual 3.3L & 3.8L ................... .45-.65 ............ 7000-15,800
Dakota & Durango
Diamond (1)( 2) ................ .97-1.18 ......... 11,300-15,300
Toyodenso ( 1) ................. .95

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

DODGE RAM 1999 Service Repair Manual Cylinder No. 1 Or 4 ........................................ 4200
Cylinder No. 2 Or 3 ........................................ 3200
3.0L
Cylinder No. 1 ................................

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\
)
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\
)

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