RAM CHASSIS CAB 2007 Owners Manual

wheel. The nuts should then be tightened to recom-
mended torque. Tighten the nuts to final torque in
increments. Progress around the bolt circle, tightening
the nut opposite to the nut just previously tightened until
final torque is achieved. Recommended torques are
shown in the following chart.
Disc
Wheels Type Nut Stud Size Torque
Ft. Lbs. Torque
Newton
Meters
Cone 9/16-18 120-150 160-200
Flanged 9/16-18 130-160 190-220
To Stow The Flat Or Spare (If equipped)
Refer to Upfitters Body Builders Guide for information
on stowing your spare tire (If equipped). HOISTING
A conventional floor jack may be used at the jacking
locations, refer to the graphics that show jacking loca-
tions. However, a floor jack or frame hoist must never be
used on any other parts or the underbody.
CAUTION!Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result. WHAT TO DO IN EMERGENCIES 381
6

JUMP-STARTING
WARNING!To prevent personal injury or damage to clothing, do
not allow battery fluid to contact eyes, skin or
fabrics. Do not lean over a battery when connecting
jumper cables or allow cable clamps to touch each
other. Keep open flames or sparks away from battery
vent holes. Always wear eye protection when work-
ing with batteries.
Do not use a booster battery or any other booster
source that has a greater than 12 volt system, i.e. do
not use a 24 volt power source. NOTE: Replacement batteries should both be of equal
size to prevent damage to the vehicles charging system.
Your vehicle is equipped with two 12–volt batteries. If it
becomes necessary to use a booster battery, with jumper
cables, to start a vehicle’s engine because its batteries are
discharged, the following procedure should be followed:
Set the parking brake and place an automatic transmis-
sion in PARK (or NEUTRAL for a manual transmission).
Turn off lights, heater and other electrical loads. Observe
charge indicator (if equipped) in both batteries. If indica-
tor (if equipped) is light or yellow on either battery,
replace that battery.382 WHAT TO DO IN EMERGENCIES

CAUTION!Use the Jump Start Procedure only when the charge
indicator (if equipped) in both batteries is dark in
the center. Do not attempt jump starting when either
battery charge indicator (if equipped) is bright or
yellow. If charge indicator (if equipped) has a green
dot in the center, failure to start is not due to a
discharged battery and cranking system should be
checked.
1. Attach one jumper cable to the positive terminal of
booster battery and the other end of the same cable to the
positive terminal of the discharged battery. WARNING!Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result. WHAT TO DO IN EMERGENCIES 383
6

2. Connect one end of the other jumper cable to negative
(-) post of booster battery. Connect the other end of the
jumper cable to a good ground on the engine block of the
vehicle with the discharged battery. Make sure a good
connection is made, free of dirt and grease.
WARNING!• Do not connect the cable to the negative post of
the discharge battery. The resulting electrical
spark could cause the battery to explode.
• During cold weather when temperatures are be-
low freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump starting
because the battery could rupture or explode. The
battery temperature must be brought up above
freezing point before attempting jump start. 3. Take care that the clamps from one cable do not
inadvertently touch clamps from the other cable. Do not
lean over the battery when making connection. The
negative connection must provide good electrical con-
ductivity and current carrying capacity.
4. After the engine is started or if the engine fails to start,
cables must be disconnected in the following order:
a. Disconnect the negative cable at the engine ground.
b. Disconnect the negative cable at the negative post
on booster battery.
c. Disconnect the cable from the positive post of both
batteries.384 WHAT TO DO IN EMERGENCIES

WARNING!Any procedure other than above could result in:
1. Personal injury caused by electrolyte squirting
out the battery vent;
2. Personal injury or property damage due to battery
explosion;
3. Damage to charging system of booster vehicle or
of immobilized vehicle.
With Portable Starting Unit
There are many types of these units available. Follow the
manufacturer’s instructions for necessary precautions
and operation. CAUTION!It is very important that the starting unit operating
voltage does not exceed 12 Volts D.C. or damage to
battery, starter motor, alternator, or electrical system
may occur.
FREEING A STUCK VEHICLE
If vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the gear
selector rhythmically between DRIVE and REVERSE
(automatic transmissions) and between 1st and RE-
VERSE (manual transmissions), while applying slight
pressure to the accelerator.
In general, the least amount of accelerator pedal pressure
to maintain the rocking motion without spinning the
wheels or racing the engine is most effective. Racing the
engine or spinning the wheels, due to the frustration of WHAT TO DO IN EMERGENCIES 385
6

not freeing the vehicle, may lead to transmission over-
heating and failure. Allow the engine to idle with the
transmission selector in NEUTRAL for at least one
minute after every five rocking-motion cycles. This will
minimize overheating and reduce the risk of transmis-
sion failure during prolonged efforts to free a stuck
vehicle.
EMERGENCY TOW HOOKS — IF EQUIPPED
Your vehicle may be equipped with emergency tow
hooks.
NOTE: For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle. WARNING!Chains are not recommended for freeing a stuck
vehicle. Chains may break, causing serious injury or
death.
WARNING!Stand clear of vehicles when pulling with tow
hooks. Tow straps and chains may break, causing
serious injury.386 WHAT TO DO IN EMERGENCIES

CAUTION!Tow hooks are for emergency use only, to rescue a
vehicle stranded off road. Do not use tow hooks for
tow truck hookup or highway towing. You could
damage your vehicle.
TOWING A DISABLED VEHICLE
Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use only tow bars and other
equipment designed for the purpose, following equip-
ment manufacturer’s instructions. Use of safety chains is
mandatory. Attach a tow bar or other towing device to
the main structural members of the vehicle—not to
bumpers or associated brackets. State and local laws
applying to vehicles under tow must be observed. 4-Wheel- Drive Vehicles
CAUTION!To avoid damage to the transfer case while towing,
always use one of the following methods.
NOTE: The Transfer Case must be in the neutral posi-
tion, and the transmission must be in Park (Automatic
Transmission), or in gear (Manual Transmission) to tow a
4WD vehicle with one end of the vehicle raised. WHAT TO DO IN EMERGENCIES 387
6

The manufacturer recommends towing with all wheels
OFF the ground. Acceptable methods are to tow vehicle
on a flatbed or with one end of vehicle raised and the
opposite end on a towing dolly. 2–Wheel- Drive Vehicles
Provided that transmission is operable, tow on a flatbed
or with the front wheels raised and the rear wheels on a
dolly.388 WHAT TO DO IN EMERGENCIES

MAINTAINING YOUR VEHICLECONTENTS
Engine Compartment — 6.7L Diesel Engine ....392

Engine Compartment— 5.7L Gas Engine ......393

Onboard Diagnostic System (OBD II) .........394
▫ Loose Fuel Filler Cap Message ............394

Replacement Parts ......................395

Engine Data Plate ......................395

Dealer Service .........................395

Service Information .....................396

Maintenance Procedures ..................398 ▫ Engine Oil ..........................398
▫ Drive Belts (Gas Engines) ...............406
▫ Drive Belt (Diesel Engines) ..............406
▫ Engine Air Cleaner Filter (Gas Engines) .....406
▫ Engine Air Cleaner Filter (Diesel Engines) ....407
▫ Draining Fuel/Water Separator Filter (Diesel
Engines) ............................410
▫ Engine Fuel Filter (Gas Engines) ...........413
▫ Spark Plugs (Gas Engines) ...............413
7

▫ Catalytic Converter (Gas Engines) .........413
▫ Intervention Regeneration Strategy – EVIC
Message Process Flow (Catalyst Full Message)
(Diesel Engines Only) ..................415
▫ Emission-Related Components (Gas Engines) . . 418
▫ Maintenance Free Battery (Gas Engines) .....418
▫ Maintenance Free Batteries (Diesel Engines) . . . 419
▫ Air Conditioner Maintenance .............420
▫ Power Steering — Fluid Check ............421
▫ Front Suspension Ball Joints ..............422
▫ Steering Linkage — Inspection ............422
▫ Front Prop Shaft Lubrication .............422
▫ Front Axle Universal Drive Joints And Pivot
Bearings ............................423 ▫ Body Lubrication .....................423
▫ Windshield Wiper Blades ................424
▫ Windshield Washers ...................424
▫ Exhaust System ......................425
▫ Cooling System .......................426
▫ Fan ...............................432
▫ Charge Air Cooler — Inter-Cooler (Diesel
Engines) ............................432
▫ Hoses And Vacuum/Vapor Harnesses .......433
▫ Fuel System Connections ................433
▫ Brake System ........................434
▫ Clutch Hydraulic System ................436
▫ Clutch Linkage .......................436390 MAINTAINING YOUR VEHICLE