spark plugs replace DODGE RAM 1999 Service User Guide
Page 1170 of 1691
SC HED ULE D S ER VIC ES
INSPECT
Exhaust System
Brake Hoses
Engine Coolant Level, Hoses & Clamps
Engine Air Cleaner & Air Pump Filters
Brake Linings
SERVICE
Lubricate Steering Linkage
Automatic Transmission Bands
Clean EGR Passages (5.9L)
REPLACE
Engine Oil
Engine Oil Filter (
1)
Automatic Transmission Fluid & Filter
Rear Axle Fluid
Front Axle Fluid (4x4)
Spark Plugs
Ignition Cables
PCV Valve (5.9L)
EGR Valve (5.9L)
Distributor Cap & Rotor (5.9L)
(
1) 8.0L: Change oil filter at every oil change.
5.9L: If mileage is less than 6,000 miles (9,600 Km) Yearly,
replace the oil filter at every oil change.
LUBRICATION SPECIFICATIONS
Material Condition Specification
Engine Oil Ambient Temperature Above 0 F SAE 10W-30
(
1) (-18 C) To Over 100 F (38 C)
Ambient Temperature Less Than SAE 5W-30
-20 F (-29 C) Up To 32 F (0 C)
Engine All 50/50 Mixture Of
Coolant Distilled Water &
Ethylene Glycol
Brake Fluid All DOT 3
Page 1181 of 1691
Severe Service (4) ............... ( 2) ................. 60,000
Coolant ............................. ( 5) .................... ( 5)
Drive Belt ........................... 48 ................. 60,000
Engine Oil
Normal Service ..................... 6 .................... 7500
Severe Service .................... ( 2) ................... 3000
Engine Oil Filter
Normal Service
2.4L .............................. 6 .................... 7500
All Others ........................ 12 ................. 15,000
Severe Service
2.4L ............................. ( 2) ................... 3000
All Others ....................... ( 2) ................... 6000
PCV Valve ( 4)
Normal Service ..................... 48 ................. 60,000
Severe Service .................... ( 2) ................. 30,000
Spark Plugs
2.4L & 3.0L
Normal Service .................... 24 ................. 30,000
Severe Service ................... ( 2) ................. 30,000
3.3L & 3.8L
Normal Service ................... ( 2) ................ 100,000
Severe Service ................... ( 2) ................. 75,000
Spark Plug Wires
2.4L & 3.0L
Normal Service .................... 48 ................. 60,000
Severe Service ................... ( 2) ................. 60,000
3.3L & 3.8L
Normal Service ................... ( 2) ................ 100,000
Severe Service ................... ( 2) ................. 75,000
Automatic Transaxle Fluid, Filter
& Band Adjustment ( 6)
Normal Service ..................... 24 ................. 30,000
Severe Service .................... ( 2) ................. 15,000
Power Transfer Unit Fluid
(AWD - Severe Service) ( 7) ......... ( 2) ................. 15,000
Rear Differential & Overrunning
Clutch Fluid/n
(AWD - Severe Service) ( 7) ........ ( 2) ................. 21,000
( 1) - Different interval may be required for normal and severe
service. Severe service is described as use of ethanol fuel,
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.
( 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) - Inspect at scheduled interval and replace as necessary. Inspect
every 30,000 miles after first scheduled interval if not
previously replaced at scheduled interval listed.
( 5) - 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.
( 6) - Band adjustment required on 3-speed automatic transaxle.
( 7) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (DAKOTA) ( 1)
Page 1182 of 1691
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Component Months Miles
Air Filter
Normal Service ......................... 24 ............. 30,000
Severe Service ........................ (2) ......... ( 3) 15,000
Coolant ................................. ( 4) ................ ( 4)
Drive Belt ............................... 48 ............. 60,000
Engine Oil
Normal Service ......................... 6 ................ 7500
Severe Service ........................ ( 2) ............... 3000
Engine Oil Filter
Normal Service ........................ 12 .............. 15,000
Severe Service ........................ ( 2) ............... 6000
PCV Valve (3.9L, 5.2L & 5.9L) ( 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 Transmission Fluid,
Filter & Band Adjustment
Normal Service ........................ 30 .............. 37,500
Severe Service ........................ ( 2) ............. 12,000
Manual Transmission Fluid 3.9L
Normal Service ........................ 30 .............. 37,500
Severe Service ........................ ( 2) ............. 18,000
Transfer Case Fluid (4WD)
Normal Service ........................ 30 .............. 37,500
Severe Service ........................ ( 2) ............. 36,000
Front Differential Fluid (4WD) ( 6)
Severe Service ........................ ( 2) ............. 12,000
Rear Differential Fluid ( 6)
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, off-highway operation, snow removal operation,
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.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (DURANGO) ( 1) \
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Component Months Miles
Page 1183 of 1691
Air Filter
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... (2) ........ ( 3) 15,000
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 Transmission Fluid,
Filter & Band Adjustment
Normal Service .......................... 30 ............ 37,500
Severe Service ......................... ( 2) ............ 12,000
Transfer Case Fluid (4WD)
Normal Service .......................... 30 ............ 37,500
Severe Service ......................... ( 2) ............ 36,000
Front Differential Fluid (4WD) ( 6)
Severe Service ......................... ( 2) ............ 12,000
Rear Differential Fluid ( 6)
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, off-highway operation, snow removal operation,
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.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (RAM PICKUP - LIGHT-DUTY) ( 1)( 2) \
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Component Months Miles
Air Filter
Normal Service ......................... 24 ............. 30,000
Severe Service ......................... ( 3) ........ ( 4) 15,000
Coolant .................................. ( 5) ............... ( 5)
Engine Oil
Page 1184 of 1691
Normal Service .......................... 6 ............... 7500
Severe Service ......................... (3) .............. 3000
Engine Oil Filter
Normal Service .......................... 12 ............ 15,000
Severe Service ......................... ( 3) .............. 6000
PCV Valve ( 6)
Normal Service .......................... 48 ............ 60,000
Severe Service ......................... ( 3) ............ 30,000
Spark Plugs
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... ( 3) ............ 30,000
Spark Plug Wires
Normal Service .......................... 48 ............ 60,000
Severe Service ......................... ( 3) ............ 60,000
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service .......................... 30 ............ 37,500
Severe Service ......................... ( 3) ............ 12,000
Manual Transmission Fluid ................ ( 7) ............... ( 7)
Transfer Case Fluid (4WD)
Normal Service .......................... 30 ............ 37,500
Severe Service ......................... ( 3) ............ 36,000
Front Differential Fluid (4WD) ( 8)
Severe Service ......................... ( 3) ............ 12,000
Rear Differential Fluid ( 8)
Severe Service ......................... ( 3) ............ 12,000
Repack Front Wheel Bearings (2WD)
Normal Service .......................... 18 ............ 22,500
Severe Service ......................... ( 3) ............ 21,000
( 1) - Light-duty vehicles apply to all 1500 models and 2500 except
5.9L diesel or 8.0L engines.
( 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 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.
( 6) - Inspect at scheduled interval and replace as necessary.
( 7) - Service interval is not available from manufacturer.
( 8) - 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 - MEDIUM-DUTY - GASOLINE) ( 1)( 2) \
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Component Months Miles
Air Filter
Normal Service ...................... 30 ................ 30,000
Severe Service ...................... ( 3) ........... ( 4) 15,000
Coolant ............................... ( 5) .................. ( 5)
Engine Oil & Filter
Normal Service ....................... 6 .................. 6000
Severe Service ...................... ( 3) ................. 3000
Page 1185 of 1691
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
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 1188 of 1691
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)