2007 RAM CHASSIS CAB power steering fluid

ABS Warning Light
The Anti-lock Brake System includes an amber warning
light, located in the instrument cluster. When the light is
illuminated, the Anti-lock Brake System is not function-
ing. The system reverts to standard non-anti-lock brakes.
WARNING!Pumping of the anti-lock brakes will diminish their
effectiveness and may lead to an accident. Pumping
makes the stopping distance longer. Just press firmly
on your brake pedal when you need to slow down or
stop. POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason, the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE: Increased noise levels at the end of the steering
wheel travel are considered normal and does not indicate
that there is a problem with the power steering system.
Upon initial start-up in cold weather, the power steering
pump may make noise for a short period of time. This is
due to the cold, thick fluid in the steering system. This
noise should be considered normal, and does not in any
way damage the steering system.304 STARTING AND OPERATING

WARNING!Continued operation with reduced power steering
assist could pose a safety risk to yourself and others.
Service should be obtained as soon as possible.
CAUTION!Prolonged operation of the steering system at the
end of the steering wheel travel will increase the
steering fluid temperature and should be avoided
when possible. Damage to the power steering pump
may occur. TIRE SAFETY INFORMATION
Tire Markings
NOTE:
• P (Passenger)-Metric tire sizing is based on U.S. design
standards. P-Metric tires have the letter “P” molded
into the sidewall preceding the size designation. Ex-
ample: P215/65R15 95H. STARTING AND OPERATING 305
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▫ 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

WARNING!• Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs. Refer
to Section 3 of the Warranty Information book for
further warranty information.
• The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced repairman. Refrigerant Recovery and Recycling
R-134a Air Conditioning Refrigerant is a hydrofluorocar-
bon (HFC) that is endorsed by the Environmental Pro-
tection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by dealers or other service facilities
using recovery and recycling equipment.
Power Steering — Fluid Check
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through a certified
DaimlerChrysler Dealership.  MAINTAINING YOUR VEHICLE 421
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WARNING!Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to insure accurate fluid level reading. Do
not overfill. Use only manufacturers recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to Fluids, Lubricants, and Genuine Parts
for correct fluid type.
Front Suspension Ball Joints
The ball joints originally supplied with the vehicle are
permanently lubricated at the factory and do not require
service. The ball joints and seals should be inspected
whenever the vehicle is serviced for other reasons. Steering Linkage — Inspection
Whenever the vehicle is hoisted, all steering linkage
joints should be inspected for evidence of damage. If
seals are damaged, parts should be replaced to prevent
leakage or contamination of the grease.
Front Prop Shaft Lubrication
Lubricate the front driveshaft grease fitting at each oil
change listed in the appropriate Maintenance Schedule
for your vehicle (Schedule “A” and “B”). Use Mopar 
type MS-6560 (lithium based grease), or equivalent.422 MAINTAINING YOUR VEHICLE

Brake System
Power Disc Brakes (Front and Rear)
Disc brakes do not require adjustment; however, several
hard stops during the break-in period are recommended
to seat the linings and wear off any foreign material.
Brake And Power Steering Hoses
When the vehicle is serviced for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, tears, cuts, abrasion, and excessive swelling
indicate deterioration of the rubber. Particular attention
should be made to examining those hose surfaces nearest
to high heat sources, such as the exhaust manifold.
Insure nylon tubing in these areas has not melted or
collapsed. Inspect all hose connections such as clamps and cou-
plings to make sure they are secure and no leaks are
present.
NOTE: Often, fluid such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to facilitate the assembly of hoses to couplings.
Therefore, oil wetness at the hose-coupling area is not
necessarily an indication of leakage. Actual dripping of
hot fluid when systems are under pressure (during
vehicle operation), should be noted before hose is re-
placed based on leakage.
NOTE: Inspection of brake hoses should be performed
whenever the brake system is serviced and every engine
oil change. Inspect hydraulic brake hoses for surface
cracking, scuffing, or worn spots. If there is any evidence
of cracking, scuffing, or worn spots, the hose should be
replaced immediately! Eventual deterioration of the hose
can take place resulting in a possibility of a burst failure.434 MAINTAINING YOUR VEHICLE

Chassis
Component Fluids, Lubricants and Genuine Parts.
Automatic Transmission (5 Speed
545RFE) Mopar  ATF+4, Automatic Transmission Fluid.
Automatic Transmission (6 Speed
AS68RC) Mopar  AS68RC™ Automatic Transmission Fluid
Transfer Case Mopar  ATF+4, Automatic Transmission Fluid.
Manual Transmission Fluid G-56 Mopar  ATF+4, Automatic Transmission Fluid.
Clutch Linkage Multipurpose Grease, NLGI Grade 2 E.P. or equivalent.
Front and Rear Axle Fluid GL-5 SAE 75W-90 Synthetic or equivalent. 3500 axles do not require lim-
ited slip additive.
Brake Master Cylinder Mopar  DOT 3 and SAE J1703 should be used or equivalent. If DOT 3
brake fluid is not available, then DOT 4 is acceptable. Use only recom-
mended brake fluids.
Power Steering Reservoir Mopar  ATF+4, Automatic Transmission Fluid. MAINTAINING YOUR VEHICLE 471
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Automatic Transmission (Gas Engine Only) ..... 441
AxleFluid .......................... 437,471
Axle Lubrication (Axle Fluid) ............... 437
BallJoints ............................. 422
Battery ............................ 418,419
Blanket .......................... 260,420
Emergency Starting ..................... 382
Keyless Transmitter Replacement (RKE) ....... 24
Saving Feature (Protection) ............... 123
Bearings .............................. 444
Belts,Drive ............................ 406
Belts, Seat .............................. 35
Body Mechanism Lubrication ............... 423
B-Pillar Location ........................ 310
Brake Fluid ............................ 471
Brake System ........................ 301,434
Anti-Lock (ABS) ....................... 302
Disc Brakes .......................... 434 Fluid Check .......................... 435
Hoses .............................. 434
Master Cylinder ....................... 435
Parking ............................. 299
Warning Light ........................ 177
Bulb Replacement ....................... 462
Bulbs,Light ............................ 461
Cab Top Clearance Lights .................. 466
Calibration, Compass .................. 138,148
Capacities, Antifreeze (Engine Coolant) ........ 468
Capacities, Fluid ........................ 468
Caps, Filler
Oil (Engine) ....................... 401,403
Power Steering ........................ 421
Radiator (Coolant Pressure) ............... 429
Car Washes ............................ 452
Carbon Monoxide Warning ............... 75,330
Cassette Tape and Player Maintenance ......... 228 INDEX 515
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