2007 DODGE CARAVAN spark plugs replace

MAINTAINING YOUR VEHICLE
CONTENTS

2.4L Engine ...........................414

3.3L/3.8L Engines ......................415

Onboard Diagnostic System — OBD II ........416
▫ Loose Fuel Filler Cap Message ............416

Emissions Inspection And Maintenance
Programs ............................417

Replacement Parts ......................418

Dealer Service .........................419

Maintenance Procedures ..................419 ▫
Engine Oil ..........................420
▫ Engine Oil Filter ......................423
▫ Drive Belts — Check Condition And Tension . . 423
▫ Spark Plugs .........................424
▫ Engine Air Cleaner Filter ................424
▫ Catalytic Converter ....................425
▫ Maintenance-Free Battery ................427
▫ Air Conditioner Maintenance .............428
▫ Power Steering — Fluid Check ............430
7

Belts should be inspected for evidence of cuts, cracks, or
glazing, and replaced if there is indication of damage
which could result in belt failure. If adjustment is re-
quired, the belts must be adjusted according to the
specifications and procedures described in the Service
Manual. Low generator belt tension can cause battery
failure. A special tool is required to properly measure
tension and to restore belt tension to factory specifica-
tions.
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.
Engine Air Cleaner Filter
Under normal driving conditions, replace the air filter at
the intervals shown on Schedule “A”. If, however, you
drive the vehicle frequently under dusty or severe con-
ditions, the filter element should be inspected periodi-
cally and replaced if necessary at the intervals shown on
Schedule “B”.
424 MAINTAINING YOUR VEHICLE

Miles 21, 000 24, 000 27, 000 30, 000 33, 000 36, 000
(Kilometers) (35 000) (40 000) (45 000) (50 000) (55 000) (60 000)
Change engine oil and engine oil filter. XXXXX X
Rotate Tires XX X
Inspect the brake linings. XX
Inspect the engine air cleaner filter, replace if
necessary. XXX X X
Replace the engine air cleaner filter. X
Replace the spark plugs 2.4 liter engines. X
Inspect the tie rod ends and boot seals. X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines. X
Inspect the generator belt on 2.4 liter engines,
replace if necessary. X
Inspect the PCV valveand replace as neces-
sary. X
Replace the air conditioning filter. XX
SCHEDULE “B” 471
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Miles 57, 000 60, 000 63, 000 66, 000 69, 000 72, 000
(Kilometers) (95 000) (100 000) (105 000) (110 000) (115 000) (120 000)
Change engine oil and engine oil filter. XXXXX X
Rotate Tires XX X
Inspect the brake linings. XX
Inspect the engine air cleaner filter, replace if
necessary. X XXX X
Replace the engine air cleaner filter. X
Replace the spark plugs & ignition cables
on
2.4 liter engines.X
Inspect the tie rod ends and boot seals. X
Inspect and adjust the power steering pump belt
tension on 2.4 liter engines. X
Inspect the generator belt on 2.4 liter engines,
replace if necessary. X
Inspect the PCV valve
and replace if necessary.X
Inspect the serpentine drive belt on 3.3 liter and
3.8 liter engines, replace if necessary. ‡ X
Change the automatic transmission fluid and fil-
ter. \b X
Replace the air conditioning filter. XX
SCHEDULE “B” 473
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Miles 75, 000 78, 000 81, 000 84, 000 87, 000 90, 000
(Kilometers) (125 000) (130 000) (135 000) (140 000) (145 000) (150 000)
Change engine oil and engine oil filter. XXXXX X
Rotate Tires XX X
Inspect the brake linings. XX
Inspect the engine air cleaner filter, replace if
necessary. XXXX
Replace the engine air cleaner filter X X
Inspect the serpentine drive belt on 3.3 liter
and 3.8 liter engines, replace if necessary. ‡ XX
Replace the spark plugs
on 2.4 liter engines.X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines. XX
Inspect the generator belt on 2.4 liter engines,
replace if necessary. XX
Inspect the tie rod ends and boot seals. X
Check the PCV valve
and replace if necessary.
Not required if previously changed.X
Replace the air conditioning filter. X
474 SCHEDULE “B”
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Miles 93, 000 96, 000 99, 000 102, 000 105, 000
(Kilometers) (155 000) (160 000) (165 000) (170 000) (175 000)
Change engine oil and engine oil filter. XXXX X
Rotate Tires XX
Inspect the brake linings. X
Inspect the engine air cleaner filter, replace if neces-
sary. XXXX
Replace the engine air cleaner filter X
Inspect and adjust the power steering pump belt
tension on 2.4 liter engines. X
Inspect the generator belt on 2.4 liter engines, re-
place if necessary. X
Replace the engine timing belt
on 2.4 liter engines
only.X
Inspect the serpentine drive belt on 3.3 liter and 3.8
liter engines, replace if necessary. ‡ X
Replace the spark plugs & ignition cables
on 3.3
liter and 3.8 liter engines.X
Flush and replace the engine coolant. X
Replace the air conditioning filter. X
SCHEDULE “B” 475
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Miles 108, 000 111, 000 114, 000 117, 000 120, 000
(Kilometers) (180 000) (185 000) (190 000) (195 000) (200 000)
Change engine oil and engine oil filter. XXXXX
Rotate Tires XXX
Inspect the brake linings. XX
Inspect the engine air cleaner filter, replace if
necessary. XXXX
Replace the engine air cleaner filter. X
Replace the spark plugs & ignition cables on
2.4 liter engines. X
Inspect the tie rod ends and boot seals. X
Inspect the PCV valveand replace as neces-
sary. X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines. X
Inspect the generator belt on 2.4 liter engines,
replace if necessary. X
476 SCHEDULE “B”
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SCHEDULE “A”
Miles 6, 000 12, 000 18, 000 24, 000 30, 000 36, 000
(Kilometers) (10 000) (20 000) (30 000) (40 000 ) (50 000) (60 000)
[Months] [6] [12] [18] [24] [30] [36]
Change engine oil and engine oil filter. X XXXXX
Rotate Tires X XXXXX
Inspect the brake linings. XX
Inspect the engine air cleaner filter, replace if
necessary. X XXX X
Replace the engine air cleaner filter. X
Replace the spark plugs 2.4 liter engines. X
Inspect the tie rod ends and boot seals. X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines. X
Inspect the generator belt on 2.4 liter engines,
replace if necessary. X
Replace the air conditioning filter. XXX
478 SCHEDULE “A”
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