2007 DODGE RAM 1500 GAS spark plugs replace

MAINTAINING YOUR VEHICLE
CONTENTS

Engine Compartment— 3.7L/4.7L...........448

Engine Compartment— 5.7L...............449

Onboard Diagnostic System (OBD II).........450
▫Loose Fuel Filler Cap Message............450

Emissions Inspection And Maintenance
Programs............................451

Replacement Parts......................452

Dealer Service.........................453

Maintenance Procedures..................453▫Engine Oil..........................454
▫Engine Oil Filter......................457
▫Drive Belts — Check Condition And Tension . . 458
▫Spark Plugs.........................458
▫Spark Plug Wires.....................458
▫Engine Air Cleaner Filter................459
▫Engine Fuel Filter.....................459
▫Catalytic Converter....................459
▫Emission-Related Components............461
7

quality filters should be used to assure most efficient
service. Mopar Engine Oil Filters are a high quality oil
filter and are recommended.
Drive Belts — Check Condition and Tension
Belt tension is controlled by means of an automatic
tensioner. No belt tension adjustments are required.
However, belt and belt tensioner condition should be
inspected at the specified intervals and replaced if re-
quired. See your authorized dealer for service.
At the mileage indicated in the maintenance schedule, all
belts and tensioner should be checked for condition.
Improper belt tension can cause belt slippage and failure.
Belts should be inspected for evidence of cuts, cracks,
glazing or frayed cords and replaced if there is indication
of damage which could result in belt failure. Low gen-
erator belt tension can cause battery failure.Also check belt routing to make sure there is no interfer-
ence between the belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the specified mileage. The entire set should be
replaced if there is any malfunction due to a faulty spark
plug, malfunctioning spark plugs can damage the cata-
lytic converter. For proper type of replacement spark
plugs, refer to the “Vehicle Emission Control Informa-
tion” label in the engine compartment.
Spark Plug Wires
The spark plug wires should be kept clean and properly
connected. Terminals should be fully seated. Cracked,
damaged, or faulty wires should be replaced.
458 MAINTAINING YOUR VEHICLE

Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (29 000) (34 000) (39 000) (43 000) (48 000)
Change engine oil and engine oil filter at interval shown
or 3 months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X X
Rotate tires. X X X
Check spare tire for proper pressure and correct stow-
age.XXX
Lubricate outer tie rod ends 2500/3500 (4X4) models
only.XXX
Change front and rear axle fluid (4X4). X
Check transfer case fluid level (4X4).X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if necessary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary. **X
SCHEDULE “B” 523
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (77 000) (82 000) (87 000) (92 000) (97 000)
Change engine oil and engine oil filter at interval shown
or 3 months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X X
Rotate tires. X X X
Check spare tire for proper pressure and correct stowage. X X X
Lubricate outer tie rod ends 2500/3500 (4X4) models only. X X X
Flush and replace engine coolant.X
Check transfer case fluid level (4X4).X
Change front and rear axle fluid (4X4). X
Change 6-spd manual transmission fluid 2500/3500 mod-
els only.X
Inspect automatic transmission fluid, add if necessary. X
Inspect brake linings. X X
Inspect engine air cleaner filter, replace if necessary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary. **X
SCHEDULE “B” 525
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 78,000 81,000 84,000 87,000 90,000
(Kilometers) (126 000) (130 000) (135 000) (140 000) (145 000)
Change engine oil and engine oil filter at interval shown
or 3 months, whichever comes first.X X XXX
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X X
Rotate tires. X X X
Check spare tire for proper pressure and correct stowage. X X X
Lubricate outer tie rod ends 2500/3500 (4X4) models only. X X X
Change front and rear axle fluid (4X4). X
Check transfer case fluid level (4X4).X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if necessary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary. **X
Inspect auto tension drive belt and replace if required
(3.7L/4.7L/5.7L).****X
Inspect Transfer Case Fluid, add if necessary. X
SCHEDULE “B” 527
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 105,000 108,000 111,000 114,000 117,000 120,000
(Kilometers) (169 000) (174 000) (179 000) (183 000) (188 000) (193 000)
Change engine oil and engine oil filter at interval
shown or 3 months, whichever comes first.X X XXXX
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXXX
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Lubricate outer tie rod ends 2500/3500 (4X4)
models only.XXX
Change front and rear axle fluid (4X4). X X
Change 6-spd manual transmission fluid 2500/
3500 models only.X
Inspect brake linings. X X
Inspect engine air cleaner filter, replace if nec-
essary.XX
Replace spark plugs.X
SCHEDULE “B” 529
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 141,000 144,000 147,000 150,000
(Kilometers) (227 000) (232 000) (237 000) (241 000)
Change engine oil and engine oil filter at interval shown
or 3 months, whichever comes first.XXXX
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X
Rotate tires. X X
Check spare tire for proper pressure and correct stowage. X X
Lubricate outer tie rod ends 2500/3500 (4X4) models only. X X
Drain and refill transfer case fluid (4X4). X
Change front and rear axle fluid (4X4). X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if necessary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary. **X
Inspect auto tension drive belt and replace if required
(3.7L/4.7L/5.7L).X
532 SCHEDULE “B”
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Schedule “A”
Miles 6,000 12,000 18,000 24,000 30,000
(Kilometers) (10 000) (19 000) (29 000) (39 000) (48 000)
[Months] [6] [12] [18] [24] [30]
Change engine oil and engine oil filter. X X X X X
Rotate tires. X X X X X
Check spare tire for proper pressure and correct
stowage.X X XXX
Check transfer case fluid level (4X4).X
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X X
Lubricate outer tie rod ends 2500/3500 (4X4) models
only.X X XXX
Inspect brake linings. X
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
534 SCHEDULE “A”
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S