engine Ram 4500 Chassis Cab 2018 Repair Manual

On 3500 models with dual rear wheels
(DRW), you must first remove the hub caps.
The jack handle driver has a hook at one end
that will fit in the pull off notch of the rear
hub caps. Position the hook and pull straight
out on the ratchet firmly. The hub cap should
pop off. The wheel skins can now be re-
moved. For the front hub cap, use the flat
blade on the end of the lug wrench to pull the
caps off. The wheel skin can now be removed.
CAUTION!
• Use a pulling motion to remove the hubcap. Do not use a twisting motion when
removing the hub cap, damage to the
hub cap; finish may occur.
• The rear hub caps on the dual rear wheel
has two pull off notches. Make sure that
the hook of the jack handle driver is
located squarely in the cap notch before
attempting to pull off.
You must use the flat end of the lug wrench to
pull off the wheel skins. Locate the hub cap
pull notches (2 notches on each cap). Insert the flat tip completely and using a back and
forth motion, loosen the wheel skin. Repeat
this procedure around the tire until the skin
pops off.
Replace the wheel skins first using a rubber
mallet. When replacing the hub caps, tilt the
cap retainer over the lug nut bolt circle and
strike the high side down with a rubber mal-
let. Be sure that the hub caps and wheel
skins are firmly seated around the wheel.
JUMP STARTING
If your vehicle has a discharged battery, it can
be jump started using a set of jumper cables
and a battery in another vehicle, or by using a
portable battery booster pack. Jump starting
can be dangerous if done improperly, so
please follow the procedures in this section
carefully.
WARNING!
Do not attempt jump starting if the battery
is frozen. It could rupture or explode and
cause personal injury.
CAUTION!
Do not use a portable battery booster pack
or any other booster source with a system
voltage greater than 12 Volts or damage to
the battery, starter motor, alternator or
electrical system may occur.
NOTE:
When using a portable battery booster pack,
follow the manufacturer's operating instruc-
tions and precautions.
Preparations For Jump Start
The battery in your vehicle is located in the
front of the engine compartment, behind the
left headlight assembly.
IN CASE OF EMERGENCY
164

NOTE:
Do not jump off fuses. Only jump directly off
positive post.
2. Connect the opposite end of the positive (+) jumper cable to the positive (+)post of
the booster battery.
3. Connect the negative (-)end of the jumper
cable to the negative (-)post of the
booster battery.
4. Connect the opposite end of the negative (-)jumper cable to a good engine ground
(exposed metal part of the discharged
vehicle’s engine) away from the battery
and the fuel injection system.
WARNING!
Do not connect the jumper cable to the
negative (-) post of the discharged battery.
The resulting electrical spark could cause
the battery to explode and could result in
personal injury. Only use the specific
ground point, do not use any other exposed
metal parts. 5. Start the engine in the vehicle that has
the booster battery, let the engine idle a
few minutes, and then start the engine in
the vehicle with the discharged battery.
CAUTION!
Do not connect jumper cable to any of the
fuses on the positive battery terminal. The
resulting electrical current will blow the
fuse.
6. Once the engine is started, remove the jumper cables in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative (-)end of the
jumper cable from the engine ground of
the vehicle with the discharged battery.
2. Disconnect the opposite end of the nega- tive (-)jumper cable from the negative (-)
post of the booster battery.
3. Disconnect the positive (+)end of the
jumper cable from the positive (+)post of
the booster battery. 4. Disconnect the opposite end of the posi-
tive (+)jumper cable from the positive (+)
post of the vehicle with the discharged
battery.
If frequent jump starting is required to start
your vehicle you should have the battery and
charging system inspected at an authorized
dealer.
CAUTION!
Accessories plugged into the vehicle
power outlets draw power from the vehi-
cle’s battery, even when not in use (i.e.,
cellular devices, etc.). Eventually, if
plugged in long enough without engine
operation, the vehicle’s battery will dis-
charge sufficiently to degrade battery life
and/or prevent the engine from starting.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can
reduce the potential for overheating by taking
the appropriate action.
• On the highways — slow down.
IN CASE OF EMERGENCY
166

• In city traffic — while stopped, place thetransmission in NEUTRAL, but do not in-
crease the engine idle speed while prevent-
ing vehicle motion with the brakes.
NOTE:
There are steps that you can take to slow
down an impending overheat condition:
• If your air conditioner (A/C) is on, turn it off. The A/C system adds heat to the engine
cooling system and turning the A/C off can
help remove this heat.
• You can also turn the temperature control to maximum heat, the mode control to floor
and the blower control to high. This allows
the heater core to act as a supplement to
the radiator and aids in removing heat from
the engine cooling system.
WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open
the hood until the radiator has had time to
cool. Never try to open a cooling system
WARNING!
pressure cap when the radiator or coolant
bottle is hot.
CAUTION!
Driving with a hot cooling system could
damage your vehicle. If the temperature
gauge reads HOT (H), pull over and stop
the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer
drops back into the normal range. If the
pointer remains on HOT (H), and you hear
continuous chimes, turn the engine off
immediately and call for service.
GEAR SELECTOR OVERRIDE
If a malfunction occurs and the gear selector
cannot be moved out of the PARK position,
you can use the following procedure to tem-
porarily move the gear selector: 1. Turn the engine OFF.
2. Firmly apply the parking brake.
3. Tilt the steering wheel to the full up
position.
4. Press and maintain firm pressure on the brake pedal.
5. Insert a screwdriver or similar tool into the access port (ringed circle) on the bottom
of the steering column, and push and hold
the override release lever up.
Gear Selector Override Access Port
167

6. Move the gear selector to the NEUTRALposition.
7. The vehicle may then be started in NEUTRAL.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand,
or snow, it can often be moved using a rock-
ing motion. Turn the steering wheel right and
left to clear the area around the front wheels.
Next, shift back and forth between DRIVE
and REVERSE (with automatic transmission)
or SECOND GEAR and REVERSE (with
manual transmission) while gently pressing
the accelerator. Use the least amount of ac-
celerator pedal pressure that will maintain
the rocking motion, without spinning the
wheels or racing the engine. NOTE:
Push the "ESC Off" switch, to place the Elec-
tronic Stability Control (ESC) system in "Par-
tial Off" mode, before rocking the vehicle.
Refer to “Electronic Brake Control System”
in “Safety” in the Owner’s Manual at
www.mopar.com/en-us/care/owners-manual.html
(U.S. Residents) or www.owners.mopar.ca
(Canadian Residents) for further information.
Once the vehicle has been freed, push the
"ESC Off" switch again to restore "ESC On"
mode.
WARNING!
Fast spinning tires can be dangerous.
Forces generated by excessive wheel
speeds may cause damage, or even failure,
of the axle and tires. A tire could explode
and injure someone. Do not spin your
vehicle's wheels faster than 30 mph
(48 km/h) or for longer than 30 seconds
continuously without stopping when you
are stuck and do not let anyone near a
spinning wheel, no matter what the speed.
CAUTION!
• Racing the engine or spinning the
wheels may lead to transmission over-
heating and failure. Allow the engine to
idle with the transmission in NEUTRAL
for at least one minute after every five
rocking-motion cycles. This will mini-
mize overheating and reduce the risk of
clutch or transmission failure during
prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shift-
ing between DRIVE/SECOND GEAR and
REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the
wheels too fast may lead to transmission
overheating and failure. It can also dam-
age the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
IN CASE OF EMERGENCY
168

SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE................... .174
Maintenance Plan – Gasoline Engine . .175
Heavy Duty Use Of The Vehicle ......178
SCHEDULED MAINTENANCE —
6.7L CUMMINS DIESEL ENGINE.....178
Oil Change Indicator System — Cummins
Diesel.....................178
Perform Service Indicator — Cummins
Diesel .....................179
Maintenance Plan — Cummins Diesel
Engine .....................180
ENGINE COMPARTMENT .........184
6.4L Engine.................184
6.7L Diesel Engine — Six-Speed
AS69RC HD (3500/Chassis Cab
Models) ....................185
DEALER SERVICE —
6.7L DIESEL ENGINE ............186
Engine Air Cleaner Filter .........186
Draining Fuel/Water Separator Filter . .187
Engine Mounted Fuel Filter
Replacement .................188
Underbody Mounted Fuel Filter
Replacement .................189
Priming If The Engine Has Run Out
Of Fuel ....................190
HOISTING ................. .191
TIRES .................... .191
Tire Safety Information..........191
Tires — General Information .......199
Tire Types ...................203
Spare Tires — If Equipped .........204
Wheel And Wheel Trim Care .......206
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES . . . .207
Treadwear...................207
Traction Grades ...............207
Temperature Grades .............208
SERVICING AND MAINTENANCE
173

SCHEDULED SERVICING — GASOLINE
ENGINE
Your vehicle is equipped with an automatic
oil change indicator system. The oil change
indicator system will remind you that it is
time to take your vehicle in for scheduled
maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate.
This means that service is required for your
vehicle. Operating conditions such as fre-
quent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel
usage will influence when the “Oil Change
Required” message is displayed. Severe Op-
erating Conditions can cause the change oil
message to illuminate as early as
3,500 miles (5,600 km) since last reset.
Have your vehicle serviced as soon as pos-
sible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil
change indicator message after completing
the scheduled oil change. If a scheduled oil
change is performed by someone other than
your authorized dealer, the message can bereset by referring to the steps described under
“Warning And Indicator Lights” or “Instru-
ment Cluster Display” in “Getting To Know
Your Instrument Panel” in your Owner’s
Manual at
www.mopar.com/en-us/care/
owner-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for further information.
Gasoline Engines:
Under no circumstances should oil change
intervals exceed 8,000 miles (13,000 km),
twelve months or 350 hours of engine run
time, whichever comes first. The 350 hours
of engine run or idle time is generally only a
concern for fleet customers.
Severe Duty:
Change Engine Oil at 4,000 miles
(6,500 km) or 350 hours of engine run time
if the vehicle is operated in a dusty and off
road environment or is operated predomi-
nately at idle or very low engine RPM’s. This
type of vehicle use is considered Severe Duty. Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look
for unusual wear or damage
• Check the fluid levels of the coolant reser- voir, brake master cylinder, power steering
and automatic transmission, and fill as
needed
• Check function of all interior and exterior lights
SERVICING AND MAINTENANCE
174

Maintenance Plan –
Gasoline Engine
Required Maintenance
Refer to the maintenance plan on the follow-
ing pages for required maintenance.
At Every Oil Change Interval As Indicated By OilChange 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 engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
• Inspect battery and clean and tighten ter- minals as required.
• Inspect automatic transmission fluid if equipped with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect front end, and lubricate — If equipped with serviceable fittings.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
• Lube the front drive shaft fitting (4X4 models only).
175

Mileage or time passed (whichever comesfirst)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. X X X X X
Inspect front suspension, tie rod ends, and
replace if necessary. XXX X X X X
Inspect the front and rear axle surfaces. If
gear oil leakage is suspected, check the
fluid level. If using your vehicle for police,
taxi, fleet, off-road or frequent trailer tow-
ing, change axle fluid. XXX X X X X
Inspect the brake linings, parking brake
function. XXX X X X X
Additional Maintenance
Replace engine air filter. X X X X X
Replace spark plugs. ** X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first. XX
Change the automatic transmission fluid
(AS66RC Transmission Only). XX X
Change the automatic transmission fluid
and sump filter (AS66RC Transmission
Only). XX
SERVICING AND MAINTENANCE
176

Heavy Duty Use Of The Vehicle
Change engine oil at 4,000 miles (6,500 km)
or 350 hours of engine run time if the vehicle
is operated in a dusty and off road environ-
ment or is operated predominately at idle or
only very low engine RPM’s. This type of
vehicle use is considered Severe Duty.
SCHEDULED MAINTENANCE — 6.7L
CUMMINS DIESEL ENGINE
CAUTION!
Failure to perform the required mainte-
nance items may result in damage to the
vehicle.
At Each Stop For Fuel
Check the engine oil level at least 30 minutes
after a fully warmed engine is shut off.
Checking the oil level while the vehicle is on
level ground will improve the accuracy of the
oil level reading. Add oil only when the level
is at or below the ADD or MIN mark. Once A Month
• Inspect the batteries, and clean and
tighten the terminals as required.
• Check the fluid levels of the coolant reser- voir, brake master cylinder, and automatic
transmission (if equipped), and add as
needed.
At Each Oil Change
• Change the engine oil filter.
• Inspect the exhaust system.
• Inspect engine air filter.
• Check the coolant level, hoses, and clamps.
• Inspect front end, and lubricate — If equipped with serviceable fittings.
• Lube the front drive shaft fitting (4X4 mod- els only).
Inspection and service should also be per-
formed anytime a malfunction is observed or
suspected. Retain all receipts.
Oil Change Indicator System —
Cummins Diesel
Your vehicle is equipped with an engine oil
change indicator system. This system will
alert you when it is time to change your
engine oil by displaying the words “Oil
Change Due” in your instrument cluster dis-
play. The oil change reminder will remind the
owner to change the engine oil every
15,000 miles or 500 hours, whichever
comes first, except for the Chassis Cab mod-
els and Pickup models configured with op-
tional B20 capability that are using B20 bio-
diesel, which are 12,500 miles or 400 hours,
whichever comes first. Failure to change the
engine oil per the maintenance schedule can
result in internal engine damage.
Replace the engine oil and oil filter every
15,000 miles (24,000 km) or six months, or
sooner if prompted by the oil change indicator
system. Under no circumstances should oil
change intervals exceed 15,000 miles
(24,000 km) or six months, whichever comes
first.
SERVICING AND MAINTENANCE
178

NOTE:
• Under no circumstances should oil changeintervals exceed 15,000 miles
(24,000 km) or six months or 500 Hours,
whichever comes first.
• Replace the engine oil and oil filter every 12,500 miles (20 000 km) when running
B20 fuel (Chassis Cab Only).
If Chassis Cab models and Pickup models
configured with optional B20 capability are
operated with greater than 5% levels of bio-
diesel, the oil change interval must not ex-
ceed 12,500 miles (20 000 km) under any
circumstances. See the Fuel Requirements
section for more information regarding opera-
tion of Chassis Cab models and Pickup mod-
els configured for use with biodiesel blend
(B6-B20) fuel meeting ASTM specification
D-7467.Perform Service Indicator —
Cummins Diesel
Your vehicle will require emissions mainte-
nance at a set interval. To help remind you
when this maintenance is due, the instru-
ment cluster will display “Perform Service”.
When the “Perform Service” message is dis-
played on the instrument cluster it is neces-
sary to have the emissions maintenance per-
formed. Emissions maintenance may include
replacing the Closed Crankcase Ventilation
(CCV) filter element. The procedure for clear-
ing and resetting the “Perform Service” indi-
cator message is located in the appropriate
Service Information.
179