spark plugs replace DODGE AVENGER 2008 Owners Manual

MAINTAINING YOUR VEHICLECONTENTS m 2.4L Engine Compartment ................368
m 2.7L Engine Compartment ................369
m 3.5L Engine Compartment ................370
m Onboard Diagnostic System Ð OBD II ........371
N Loose Fuel Filler Cap Message ............371
m Emissions Inspection And Maintenance
Programs .............................372
m Replacement Parts ......................373
m Authorized Dealer Service ................374 m Maintenance Procedures ..................374
N Engine Oil ..........................374
N Engine Oil Filter ......................378
N Drive Belt ...........................378
N Spark Plugs .........................379
N Engine Air Cleaner Filter ................379
N Catalytic Converter ....................379
N Maintenance-Free Battery ................381
N Air Conditioner Maintenance .............382
7

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. Refer to ªFluids, Lubricants, and Genuine Partsº in
this section for the proper type of spark plug for use in
your vehicle.
ENGINE AIR CLEANER FILTER
Refer to the ªMaintenance Scheduleº in Section 8 of this
manual for engine air cleaner filter maintenance inter-
vals.
NOTE: Be sure to follow the ªdusty or off-road condi-
tionsº maintenance interval if applicable. WARNING!The air induction system (air cleaner, hoses, etc.) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc.) unless such removal is necessary
for repair or maintenance. Make sure that no one is
near the engine compartment before starting the
vehicle with the air induction system (air cleaner,
hoses, etc.) removed. Failure to do so can result in
serious personal injury.
CATALYTIC CONVERTER
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device. MAINTAINING YOUR VEHICLE 379
7

Perform Maintenance Every (Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Replace the spark plugs on 2.4L engines (except
PZEV* engine). 30,000 50 000 30
Inspect and adjust the power steering pump belt ten-
sion on 2.4L engines. 30,000 50 000 30
Inspect the generator belt on 2.4L engines, and replace
if necessary. 30,000 50 000 30
Change the automatic transaxle fluid & filter if using
your vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing. 60,000 100 000 60
Inspect and replace PCV valve if necessary. ² 90,000 150 000 90
Flush and replace the engine coolant. 100,000 160 000 60
Replace the spark plugs on 2.4L PZEV*, 2.7L and
3.5L engines. 102,000 170 000 102
Replace the power steering pump belt on 2.4L engines. 102,000 170 000 102
Replace the generator belt on 2.4L engines. 102,000 170 000 102 430 MAINTENANCE SCHEDULES
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