spark plugs replace DODGE DURANGO 2007 2.G Owners Manual

MAINTAINING YOUR VEHICLE
CONTENTS

Engine Compartment 3.7L V6..............360

Engine Compartment 4.7L V-8..............361

Engine Compartment 5.7L HEMI V-8.........362

Onboard Diagnostic System — OBD II........363
▫Loose Fuel Filler Cap Message............363

Emissions Inspection And Maintenance
Programs............................364

Replacement Parts......................365

Dealer Service.........................366
Maintenance Procedures..................366
▫Engine Oil..........................367
▫Engine Oil Filter......................370
▫Drive Belts — Check Condition And Tension . . 371
▫Spark Plugs.........................371
▫Engine Air Cleaner Filter................372
▫Engine Fuel Filter.....................372
▫Catalytic Converter....................373
▫Maintenance Free Battery................374
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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 generator
belt tension can cause battery failure. Also check belt
routing to make sure there is no interference between the
belts and other engine components.
Spark Plugs
Spark plugs must fire properly to assure proper engine
performance and emission control. The plugs installed in
your vehicle should operate satisfactorily in normal
service for the mileage indicated in the Maintenance
Chart. New plugs should be installed at this mileage. The
entire set should be replaced if there is any malfunction
due to a faulty spark plug. Check the Vehicle Emissions
Control Information label for the proper type of spark
plug for your vehicle.
CAUTION!
When replacing plugs, do not overtighten. You could
damage them and cause them to leak.
MAINTAINING YOUR VEHICLE 371
7

Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (30 000) (35 000) (40 000) (45 000) (50 000)
Change engine oil and engine oil filter, or at 3
months whichever comes first.X X XXX
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Change rear axle fluid.X
Change front axle fluid (4X4).X
Check transfer case fluid level (4X4).X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary.*X
428 SCHEDULE “B”
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Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (80 000) (85 000) (90 000) (95 000) (100 000)
Change engine oil and engine oil filter, or at 3
months whichever comes first.X X XXX
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Change rear axle fluid.X
Change front axle fluid (4X4).X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary.*X
Inspect auto tension drive belt and replace if re-
quired.X
430 SCHEDULE “B”
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Miles 78,000 81,000 84,000 87,000 90,000
(Kilometers ) (130 000) (135 000) (140 000) (145 000) (150 000)
Change engine oil and engine oil filter, or at 3
months whichever comes first.X X XXX
Rotate tires. X X X
Check spare tire for proper pressure and correct
stowage.XXX
Change rear axle fluid.X
Change front axle fluid (4X4).X
Check transfer case fluid level (4X4).X
Inspect brake linings.X
Inspect engine air cleaner filter, replace if neces-
sary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary.*X
Inspect auto tension drive belt and replace if re-
quired.X
SCHEDULE “B” 433
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Miles 105,000 108,000 111,000 114,000 117,000 120,000
(Kilometers) (175 000) (180 000) (185 000) (190 000) (195 000) (200 000)
Change engine oil and engine oil filter, or at 3
months whichever comes first.X X XXXX
Rotate tires. X X X
Check spare tire for proper pressure and cor-
rect stowage.XXX
Change rear axle fluid. X X
Change front axle fluid (4X4). X X
Inspect brake linings. X
Inspect engine air cleaner filter, replace if
necessary.XX
Replace spark plugs.X
Inspect PCV valve, replace as necessary.*X
Inspect auto tension drive belt and replace if
required.XX
Drain and refill transfer case fluid (4X4). X
SCHEDULE “B” 435
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Miles 123,000 126,000 129,000 132,000 135,000 138,000
(Kilometers) (205 000) (210 000) (215 000) (220 000) (225 000) (230 000)
Change engine oil and engine oil filter at in-
terval shown or 3 months, whichever comes
first.X X XXXX
Lubricate Front Drive Shaft Fitting (4X4). X X X X X X
Rotate tires. X X X
Check spare tire for proper pressure and cor-
rect stowage.XXX
Lubricate outer tie rod ends (4X4). X X 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.
Inspect PCV valve, replace as necessary. *
Inspect auto tension drive belt and replace if
required (3.7L/4.7L/5.7L).X
SCHEDULE “B” 437
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Miles 141,000 144,000 147,000 150,000
(Kilometers) (235 000) (240 000) (245 000) (250 000)
Change engine oil and engine oil filter at interval shown
or 3 months, whichever comes first.XXXX
Lubricate Front Drive Shaft Fitting (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 (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
438 SCHEDULE “B”
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Schedule “A”
Miles 6,000 12,000 18,000 24,000 30,000
(Kilometers) (10 000) (20 000) (30 000) (40 000) (50 000)
[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
XX
XX
Check transfer case fluid level (4X4).X
Inspect brake linings. X
Inspect engine air cleaner filter, replace as neces-
sary.X
Replace spark plugs.X
440 SCHEDULE “A”
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Miles 36,000 42,000 48,000 54,000 60,000 66,000
(Kilometers) (60 000) (70 000) (80 000) (90 000) (100 000) (110 000)
[Months] [36] [42] [48] [54] [60] [66]
Change engine oil and engine oil filter. X X X X X X
Rotate tires. X X X X X X
Check spare tire for proper pressure and cor-
rect stowage.XX
XXX
Check transfer case fluid level (4X4). X
Flush and replace engine coolant at 60
months, if not replaced at 102,000 miles (170
000 km).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
Inspect auto tension drive belt and replace if
required.X
SCHEDULE “A” 441
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