2017 Ram 3500 check engine

•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Schedule” for the proper maintenance
intervals.
WARNING!
Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible
brake damage. You would not have your full braking
capacity in an emergency.
Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service or immediately if
the brake system warning lamp indicates system failure. The brake master cylinder has a translucent plastic reser-
voir. On the outboard side of the reservoir, there is a
“MAX” mark and a “MIN” mark. The fluid level must be
kept within these two marks. Do not add fluid above the
MAX mark because leakage may occur at the cap.
With disc brakes the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Use only the manufacturer’s recommended brake fluid.
Refer to “Fluids, Lubricants, And Genuine Parts” in “Main-
taining Your Vehicle” for further information.
WARNING!
•
Use only manufacturer’s recommended brake fluid.
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information.
Using the wrong type of brake fluid can severely
damage your brake system and/or impair its perfor-
mance. The proper type of brake fluid for your
vehicle is also identified on the original factory
installed hydraulic master cylinder reservoir.
(Continued)
7
MAINTAINING YOUR VEHICLE 667

WARNING!(Continued)
•To avoid contamination from foreign matter or mois-
ture, use only new brake fluid or fluid that has been
in a tightly closed container. Keep the master cylin-
der reservoir cap secured at all times. Brake fluid in
a open container absorbs moisture from the air
resulting in a lower boiling point. This may cause it
to boil unexpectedly during hard or prolonged brak-
ing, resulting in sudden brake failure. This could
result in a collision.
• Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing the
brake fluid to catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
• Do not allow petroleum based fluid to contaminate
the brake fluid. Brake seal components could be
damaged, causing partial or complete brake failure.
This could result in a collision.
Rear Axle And 4x4 Front Driving Axle Fluid Level
For normal service, periodic fluid level checks are not
required. When the vehicle is serviced for other reasons the
exterior surfaces of the axle assembly should be inspected.
If gear oil leakage is suspected inspect the fluid level. Refer
to “Fluids, Lubricants, And Genuine Parts” in “Maintain-
ing Your Vehicle” for further information. This inspection
should be made with the vehicle in a level position.
For 1500 Model axles, the fluid level should be even with
the bottom of the fill hole (within 1/4 in (6.4 mm) of edge
of hole) for the FDU215 HD front axle and C235FE rear
axle.
For all 2500/3500 Model axles, the fluid level should be
1/4 in ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole on the
9.25 in front and 3/4 in ± 1/4 in (19 mm ± 6.4 mm) on
10.5 in rear axles. The 11.5 in rear axle level should be
1/4 in ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole.
Drain And Refill
Refer to the “Maintenance Schedule” for the proper main-
tenance intervals.
668 MAINTAINING YOUR VEHICLE

transmission fluid at the correct level using the recom-
mended fluid. No chemical flushes should be used in any
transmission; only the approved lubricant should be used.
CAUTION!
Using a transmission fluid other than the manufactur-
er ’s recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder, and will require more frequent fluid and
filter changes. Refer to “Fluids, Lubricants, And Genu-
ine Parts” in this section for fluid specifications.
Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis-
sion Fluid (ATF) is an engineered product and its perfor-
mance may be impaired by supplemental additives. There-
fore, do not add any fluid additives to the transmission.
The only exception to this policy is the use of special dyes
for diagnosing fluid leaks in six-speed transmissions.
Avoid using transmission sealers as they may adversely
affect seals.
CAUTION!
Do not use chemical flushes in your transmission as
the chemicals can damage your transmission compo-
nents. Such damage is not covered by the New Vehicle
Limited Warranty.
Fluid Level Check — Eight-Speed Transmission
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required, therefore the transmis-
sion has no dipstick. Your authorized dealer can check
your transmission fluid level using special service tools.
If you notice fluid leakage or transmission malfunction, visit
your authorized dealer immediately to have the transmission
fluid level checked. Operating the vehicle with an improper
fluid level can cause severe transmission damage.
CAUTION!
If a transmission fluid leak occurs, visit your autho-
rized dealer immediately. Severe transmission damage
may occur. Your authorized dealer has the proper tools
to adjust the fluid level accurately.
670 MAINTAINING YOUR VEHICLE

Fluid Level Check — Six-Speed Transmission
It is best to check the fluid level when the transmission is
at normal operating temperature (170-180°F / 77-82°C).
This normally occurs after at least 15 miles (25 km) of
driving. At normal operating temperature the fluid cannot
be held comfortably between the fingertips. You can read
the transmission sump temperature in the instrument
cluster screen (refer to “Instrument Cluster Display” for
further information).
Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the instru-ment cluster display, and operate the vehicle as required
to reach the normal operating temperature. If the trans-
mission is not functioning properly, or the vehicle
cannot be driven, see the NOTE and CAUTION below
about checking the fluid level at colder temperatures.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60 sec- onds, and leave the engine running for the rest of this
procedure.
4. Fully apply the parking brake, and press the brake pedal. 5. Place the gear selector momentarily into each gear
position (allowing time for the transmission to fully
engage in each position), ending with the transmission
in PARK.
6. Remove the dipstick, wipe it clean and reinsert it until seated.
7. Remove the dipstick again and note the fluid level on both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid if
the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube to
bring it to the proper level. Do not overfill.Use ONLY
the specified fluid (see Fluids, Lubricants, And Genuine
Parts for fluid specifications). After adding any quan-
tity of oil through the dipstick tube, wait a minimum of
two minutes for the oil to fully drain into the transmis-
sion before rechecking the fluid level.
7
MAINTAINING YOUR VEHICLE 671

NOTE:If it is necessary to check the transmission below
the operating temperature, the fluid level should be be-
tween the two “COLD” (lower) holes on the dipstick with
the fluid at 60-70°F / 16-21°C. Only use the COLD region
of the dipstick as a rough reference when setting the fluid
level after a transmission service or fluid change. Re-check
the fluid level, and adjust as required, once the transmis-
sion reaches normal operating temperature.
CAUTION!
If the fluid temperature is below 50 °F (10 °C) it may
not register on the dipstick. Do not add fluid until the
temperature is elevated enough to produce an accurate
reading. Run the engine at idle, in PARK, to warm the
fluid.
8. Reinsert the dipstick. Check for leaks. Release the park- ing brake.
NOTE: To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
sure that the dipstick cap is properly reseated. It is normal
for the dipstick cap to spring back slightly from its fully
seated position, as long as its seal remains engaged in the
dipstick tube.
Fluid And Filter Changes — Eight-Speed
Transmission
Under normal operating conditions, the fluid installed at
the factory will provide satisfactory lubrication for the life
of the vehicle.
Routine fluid and filter changes are not required. However,
change the fluid and filter if the fluid becomes contami-
nated (with water, etc.), or if the transmission is disas-
sembled for any reason.
Fluid And Filter Changes — Six Speed Transmission
Refer to the “Maintenance Schedule” for the proper main-
tenance intervals.
In addition, change the fluid and filter(s) if the fluid
becomes contaminated (with water, etc.), or if the transmis-
sion is disassembled for any reason.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on
trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
672 MAINTAINING YOUR VEHICLE

Once A Month Or Before A Long Trip:
•Check engine oil level
• Check windshield washer fluid level
• Check tire pressure and look for unusual wear or
damage. Rotate tires at the first sign of irregular wear,
even if it occurs before the oil indicator system turns on.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering (2500/3500 Models
Only) and automatic transmission (six-speed only) and
fill as needed
• Check function of all interior and exterior lights
Maintenance Chart
Required Maintenance
Refer to the Maintenance Schedules on the following pages
for required maintenance.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular
wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and
park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
• Lube the front drive shaft fitting (2500/3500 (4x4)
models only). 8
MAINTENANCE SCHEDULES 705

Adding Engine Coolant (Antifreeze).............663
Adding Fuel ............................. .548
Additives, Fuel ........................... .544
Adjust Down .................................119
Forward ............................119,120
Rearward ...........................119,120
Up ...................................119
Adjustable Pedals ......................... .152
Air Bag Air Bag Operation .........................60
Enhanced Accident Response ..............66, 630
Event Data Recorder (EDR) .................630
If A Deployment Occurs ....................65
Knee Impact Bolsters .......................60
Maintaining Your Air Bag System ..............67
Side Air Bags ............................61
Air Bag Light .......................... .96, 241
Air Bag Maintenance .........................67
Air Cleaner, Engine (Engine Air Cleaner Filter) ......643
Air Conditioner Maintenance ..................649
Air Conditioning .......................... .330
Air Conditioning Controls ....................330
Air Conditioning Filter ...................347, 650
Air Conditioning, Operating Tips ............346, 348Air Conditioning Refrigerant
...............649, 650
Air Conditioning System ...............330, 345, 649
Air Pressure, Tires ......................... .519
Air Suspension ........................ .438, 444
Alarm, Panic ...............................24
Alarm (Security Alarm) ....................19, 244
Alarm System (Security Alarm) .................19
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ................662, 697
Disposal .............................. .664
Anti-Lock Brake System (ABS) .................495
Appearance Care .......................... .672
Ashtray ................................ .189
Assist, Hill Start .......................... .498
Auto Down Power Windows ...................40
Automatic Door Locks ........................
34
Automatic Headlights ...................... .139
Automatic High Beams ..................... .141
Automatic Temperature Control (ATC) ...........345
Automatic Transmission ..................388, 672
Adding Fluid ....................... .671, 672
Fluid And Filter Changes ...................672
Fluid Change .......................... .672
Fluid Level Check .................669, 670, 671
Fluid Type ......................... .669, 701
716 INDEX

Shifting........................... .395, 405
Special Additives ........................ .670
Axle Fluid ........................... .668, 701
Axle Lubrication .......................... .668
Back-Up Camera .......................... .171
Bar, Stabilizer/Sway System ...................455
Battery .............................. .245, 648
Charging System Light ....................245
Keyless Key Fob Replacement ................25
Belts, Seat .................................95
Body Builders Guide ..........................6
Body Mechanism Lubrication ..................656
B-Pillar Location .......................... .513
Brake Assist System ........................ .497
Brake Control System, Electronic ................495
Brake Fluid .......................... .667, 701
Brake System ......................... .494, 667
Fluid Check ........................... .667
Master Cylinder ........................ .667
Parking .............................. .492
Warning Light .......................... .242
Brake/Transmission Interlock ..................387
Bulb Replacement ...................... .688, 690Bulbs, Light
........................... .98, 688
Cab Top Clearance Lights .....................694
Camera, Rear ............................ .171
Camper ................................ .220
Capacities, Fluid .......................... .697
Caps, Filler Oil (Engine) ........................... .642
Power Steering ......................... .492
Radiator (Coolant Pressure) .................664
Carbon Monoxide Warning .................95, 545
Cargo Light ............................. .146
Car Washes .............................. .673
Center High Mounted Stop Light ...............693
Center

Seat Storage Compartment ...............195
Certification Label ......................... .549
Chart, Tire Sizing .......................... .509
Check Engine Light (Malfunction Indicator Light). . . .637
Checking Your Vehicle For Safety ................94
Checks, Safety .............................94
Child Restraint .............................69
Child Restraints Booster Seats ............................73
Child Restraints ..........................69
Child Seat Installation ...................82, 85
10
INDEX 717