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MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment — 3.7L............. 516
Engine Compartment — 4.7L............. 517
Engine Compartment — 5.7L............. 518
Onboard Diagnostic System (OBD II)....... 519
▫Loose Fuel Filler Cap Message........... 519
Emissions Inspection And Maintenance
Programs............................ 520
Replacement Parts..................... 521
Dealer Service........................ 522Maintenance Procedures................. 522
▫Engine Oil......................... 523
▫Engine Oil Filter..................... 525
▫Engine Air Cleaner Filter............... 526
▫Maintenance-Free Battery.............. 526
▫Air Conditioner Maintenance............ 528
▫Front Driveshaft Lubrication – 2500/3500
(Four-Wheel Drive) Models (Ram Trucks
Only)............................. 529
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▫Body Lubrication.................... 529
▫Windshield Wiper Blades............... 530
▫Adding Washer Fluid................. 530
▫Exhaust System..................... 531
▫Cooling System..................... 534
▫Brake System....................... 539
▫Rear Axle And 4X4 Front Driving Axle Fluid
Level............................. 541
▫Transfer Case....................... 542
▫Automatic Transmission............... 543
▫Appearance Care And Protection From
Corrosion.......................... 546
Fuses.............................. 552
▫Totally Integrated Power Module......... 552Vehicle Storage....................... 558
Replacement Bulbs.................... 559
Bulb Replacement..................... 559
▫Dual Or Quad Headlamp/Front Park And
Turn Signal — If Equipped............. 559
▫Fog Lamps......................... 562
▫Rear Tail/Stop, Turn Signal And Backup
Lamps............................ 562
▫Center High-Mounted Stoplamp (CHMSL)
With Cargo Lamp.................... 564
▫Cab Top Clearance Lamps — If Equipped . . . 565
▫Rear Lamp Bar ID Marker (Dual Rear
Wheels) — If Equipped................ 567
▫Side Marker Lamps (Dual Rear Wheels) — If
Equipped.......................... 568
514 MAINTAINING YOUR VEHICLE
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Fluid Capacities...................... 569
Fluids, Lubricants And Genuine Parts....... 571▫Engine............................ 571
▫Chassis........................... 572
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ENGINE COMPARTMENT — 3.7L
1 — Air Cleaner Filter 7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick (If Equipped) 8 — Power Steering Fluid Reservoir
3 — Engine Oil Dipstick 9 — Engine Oil Fill
4 — Brake Fluid Reservoir 10 — Coolant Pressure Cap
5 — Battery 11 — Engine Coolant Reservoir
6 — Integrated Power Module 516 MAINTAINING YOUR VEHICLE
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ENGINE COMPARTMENT — 4.7L
1 — Air Cleaner Filter 7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Power Steering Fluid Reservoir
3 — Engine Oil Dipstick 9 — Engine Oil Fill
4 — Brake Fluid Reservoir 10 — Coolant Pressure Cap
5 — Battery 11 — Engine Coolant Reservoir
6 — Integrated Power Module
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ENGINE COMPARTMENT — 5.7L
1 — Air Cleaner Filter 7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Integrated Power Module
3 — Engine Oil Fill 9 — Power Steering Fluid Reservoir
4 — Engine Oil Dipstick 10 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 11 — Engine Coolant Reservoir
6 — Battery 518 MAINTAINING YOUR VEHICLE
Page 520 of 622

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing, while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines
that the fuel filler cap is loose, improperly
installed, or damaged, a loose gascap indicator
will display in the EVIC telltale display area.
Refer to “Electronic Vehicle Information Center (EVIC) in
“Understanding Your Instrument Panel” for further in-
formation. Tighten the fuel filler cap properly and press
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