RAM 3500 Chassis Cab (2019 year). Instruction — part 26

412 SERVICING AND MAINTENANCE

Mileage or time passed

(whichever comes first)

20,0

00

30,0

00

40,0

00

50,0

00

60,0

00

70,0

00

80,0

00

90,0

00

100,0

00

110,0

00

120,0

00

130,0

00

140,0

00

150,0

00

Or Years:

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Or Kilometers:

32,0

00

48,0

00

64,0

00

80,0

00

96,0

00

112,0

00

128,0

00

144,0

00

160,0

00

176,0

00

192,0

00

208,0

00

224,0

00

240,0

00

Additional Inspections
Inspect the CV/Universal joints.

X

X

X

X

X

Inspect front suspension, tie rod

ends, and replace if necessary.

X

X

X

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 towing, change axle fluid.

X

X

X

X

X

X

X

Inspect the brake linings,

parking brake function.

X

X

X

X

X

X

X

Additional Maintenance
Replace engine air filter.

X

X

X

X

X

Replace spark plugs.

1

X

SERVICING AND MAINTENANCE

413

Flush and replace the engine

coolant at 10 years or 150,000 miles

(240,000 km) whichever comes first.

X

X

Change the automatic transmission

fluid (AS66RC Transmission Only).

X

X

X

Change the automatic transmission

fluid and sump filter (AS66RC

Transmission Only).

X

X

Inspect the transfer case fluid,

change for any of the following:

police, taxi, fleet, or frequent

trailer towing.

X

X

X

X

X

Change the transfer case fluid.

X

Inspect and replace PCV valve if

necessary.

X

1. The spark plug change interval is mileage based only, yearly intervals do not apply.

Mileage or time passed

(whichever comes first)

20,0

00

30,0

00

40,0

00

50,00

0

60,0

00

70,0

00

80,0

00

90,00

0

100,0

00

110,0

00

120,0

00

130,0

00

140,0

00

150,0

00

Or Years:

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Or Kilometers:

32,0

00

48,0

00

64,0

00

80,0

00

96,0

00

112,0

00

128,0

00

144,0

00

160,0

00

176,0

00

192,0

00

208,0

00

224,0

00

240,0

00

7

414 SERVICING AND MAINTENANCE

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 environment or is operated predominately at idle or

only very low engine RPM’s. This type of vehicle use is

considered Severe Duty.

WARNING!

• You can be badly injured working on or around a motor

vehicle. Do only service work for which you have the

knowledge and the right equipment. If you have any

doubt about your ability to perform a service job, take

your vehicle to a competent mechanic.

• Failure to properly inspect and maintain your vehicle

could result in a component malfunction and effect

vehicle handling and performance. This could cause an

accident.

SERVICING AND MAINTENANCE

415

ENGINE COMPARTMENT

6.4L Engine

1 — Engine Coolant Pressure Cap

6 — Battery

2 — Engine Coolant Reservoir

7 — Distribution Center (Fuses)

3 — Engine Oil Fill

8 — Washer Fluid Reservoir

4 — Engine Oil Dipstick

9 — Power Steering Fluid Reservoir

5 — Brake Fluid Reservoir

10 — Air Cleaner Filter

7

416 SERVICING AND MAINTENANCE

Checking Oil Level — Gas Engine

To assure proper lubrication of your vehicle's engine, the

engine oil must be maintained at the correct level. Check the

oil level at regular intervals, such as every fuel stop. The best

time to check the engine oil level is about five minutes after

a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will

improve the accuracy of the oil level readings. Always main-

tain the oil level within the SAFE zone on the dipstick.

Adding one quart of oil when the reading is at the bottom of

the SAFE zone will result in a reading at the top of the safe

zone on these engines.

Adding Washer Fluid

The fluid reservoir is located under the hood and should be

checked for fluid level at regular intervals. Fill the reservoir

with windshield washer solvent only (not radiator anti-

freeze). When refilling the washer fluid reservoir, take some

washer fluid and apply it to a cloth or towel and wipe the

wiper blades clean. This will help blade performance.
To prevent freeze-up of your windshield washer system in

cold weather, select a solution or mixture that meets or

exceeds the temperature range of your climate. This rating

information can be found on most washer fluid containers.

After the engine has warmed up, operate the defroster for a

few minutes to reduce the possibility of smearing or freezing

the fluid on the cold windshield. Windshield washer solu-

tion used with water as directed on the container, aids

cleaning action, reduces the freezing point to avoid line clog-

ging, and is not harmful to paint or trim.

CAUTION!

Overfilling or underfilling will cause oil aeration or loss

of oil pressure. This could damage your engine.

WARNING!

Commercially available windshield washer solvents are

flammable. They could ignite and burn you. Care must

be exercised when filling or working around the washer

solution.

SERVICING AND MAINTENANCE

417

Maintenance-Free Battery

Your vehicle is equipped with a maintenance-free battery.

You will never have to add water, nor is periodic mainte-

nance required.

DEALER SERVICE

An authorized dealer has the qualified service personnel,

special tools, and equipment to perform all service opera-

tions in an expert manner. Service Instructions are available

which include detailed service information for your vehicle.

Refer to these Service Instructions before attempting any proce-

dure yourself.
NOTE:

Intentional tampering with emissions control systems may

void your warranty and could result in civil penalties being

assessed against you.

WARNING!

• Battery fluid is a corrosive acid solution and can burn

or even blind you. Do not allow battery fluid to contact

your eyes, skin, or clothing. Do not lean over a battery

when attaching clamps. If acid splashes in eyes or on

skin, flush the area immediately with large amounts of

water. Refer to “Jump Starting Procedure” in “In Case

Of Emergency” for further information.

• Battery gas is flammable and explosive. Keep flame or

sparks away from the battery. Do not use a booster

battery or any other booster source with an output

greater than 12 Volts. Do not allow cable clamps to

touch each other.

• Battery posts, terminals, and related accessories contain

lead and lead compounds. Wash hands after handling.

CAUTION!

• It is essential when replacing the cables on the battery

that the positive cable is attached to the positive post

and the negative cable is attached to the negative post.

Battery posts are marked positive (+) and negative (-)

and are identified on the battery case. Cable clamps

should be tight on the terminal posts and free of corro-

sion.

• If a “fast charger” is used while the battery is in the

vehicle, disconnect both vehicle battery cables before

connecting the charger to the battery. Do not use a “fast

charger” to provide starting voltage.

7

418 SERVICING AND MAINTENANCE

Engine Oil — Gas Engine

Change Engine Oil

The oil change indicator system will remind you that it is

time to take your vehicle in for scheduled maintenance. Refer

to “Scheduled Servicing” in this chapter for further informa-

tion.
NOTE:

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.

Engine Oil Selection — 6.4L

For best performance and maximum protection under all

types of operating conditions, the manufacturer only recom-

mends engine oils that are API Certified and meet the

requirements of FCA Material Standard MS-12633.
American Petroleum Institute (API) Engine Oil
Identification Symbol

This symbol means that the oil has been certified by

the American Petroleum Institute (API). The manu-

facturer only recommends API Certified engine oils.

This symbol certifies 0W-20, 5W-20, 0W-30, 5W-30 and

10W-30 engine oils.

WARNING!

You can be badly injured working on or around a motor

vehicle. Only do service work for which you have the

knowledge and the proper equipment. If you have any

doubt about your ability to perform a service job, take

your vehicle to a competent mechanic.

CAUTION!

Do not use chemical flushes in your engine oil as the

chemicals can damage your engine. Such damage is not

covered by the New Vehicle Limited Warranty.

SERVICING AND MAINTENANCE

419

Engine Oil Viscosity (SAE Grade) — 6.4L Engine

Use Mopar SAE 0W-40 engine oil approved to FCA Material

Standard MS-12633 such as Pennzoil Ultra equivalent is

recommended for all operating temperatures.
The engine oil filler cap also shows the recommended engine

oil viscosity for your engine. For information on engine oil

filler cap location, refer to the “Engine Compartment” illus-

tration in this section.
Lubricants which do not have both the engine oil certifica-

tion mark and the correct SAE viscosity grade number

should not be used.
Synthetic Engine Oils

You may use synthetic engine oils provided the recom-

mended oil quality requirements are met, and the recom-

mended maintenance intervals for oil and filter changes are

followed.
Synthetic engine oils which do not have both the engine oil

certification mark and the correct SAE viscosity grade

number should not be used.

Materials Added To Engine Oil

The manufacturer strongly recommends against the addi-

tion of any additives (other than leak detection dyes) to the

engine oil. Engine oil is an engineered product and its perfor-

mance may be impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil Filters

Care should be taken in disposing of used engine oil and oil

filters from your vehicle. Used oil and oil filters, indiscrimi-

nately discarded, can present a problem to the environment.

Contact an authorized dealer, service station or govern-

mental agency for advice on how and where used oil and oil

filters can be safely discarded in your area.

Engine Oil Filter

The engine oil filter should be replaced with a new filter at

every engine oil change.
Engine Oil Filter Selection
This manufacturer's engines have a full-flow type disposable oil

filter. Use a filter of this type for replacement. The quality of

replacement filters varies considerably. Only high quality filters

should be used to assure most efficient service. Mopar engine oil

filters are high quality oil filters and are recommended.

7

420 SERVICING AND MAINTENANCE

Engine Air Cleaner Filter

Refer to the “Maintenance Plan” in this section for the proper

maintenance intervals.
NOTE:

Be sure to follow the “Severe Duty Conditions” maintenance

interval if applicable.

Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters varies

considerably. Only high quality filters should be used to

assure most efficient service. Mopar engine air cleaner filters

are a high quality filter and are recommended.

Engine Air Cleaner Filter Inspection And Replacement

Inspect engine air cleaner filter for dirt and or debris, if you

find evidence of either dirt or debris you should change your

air cleaner filter.
Engine Air Cleaner Filter Removal
1. With suitable tool fully loosen (six) fasteners on air

cleaner filter.

Air Cleaner Filter

WARNING!

The air induction system (air cleaner, hoses, etc.) can

provide a measure of protection in the case of engine

backfire. Do not remove the air induction system (air

cleaner, hoses, etc.) unless such removal is necessary for

repair or maintenance. Make sure that no one is near the

engine compartment before starting the vehicle with the

air induction system (air cleaner, hoses, etc.) removed.

Failure to do so can result in serious personal injury.

1 — Fasteners

2 — Air Hose Clamp

3 — Air Cleaner Cover

SERVICING AND MAINTENANCE

421

2. Lift the air cleaner cover to access the air cleaner filter.
3. Remove the air cleaner filter element from the housing

assembly.

Open Air Cleaner Filter Assembly

Engine Air Cleaner Filter Installation
NOTE:

Inspect and clean the housing if dirt or debris is present

before replacing the air filter element.
1. Install the air cleaner filter element into the housing

assembly with the air cleaner filter inspection surface

facing downward.

2. Install the air cleaner cover onto the housing assembly.
3. Tighten the fasteners (six) on the air cleaner filter

assembly

Air Conditioner Maintenance

For best possible performance, your air conditioner should

be checked and serviced by an authorized dealer at the start

of each warm season. This service should include cleaning of

the condenser fins and a performance test. Drive belt tension

should also be checked at this time.

1 — Air Cleaner Cover

2 — Air Cleaner Filter

7

422 SERVICING AND MAINTENANCE

Refrigerant Recovery And Recycling R-134a — If
Equipped

R-134a Air Conditioning Refrigerant is a hydrofluorocarbon

(HFC) that is an ozone-friendly substance. The manufacturer

recommends that air conditioning service be performed by

an authorized dealer or other service facilities using recovery

and recycling equipment.
NOTE:

Use only manufacturer approved A/C system PAG

compressor oil and refrigerants.
Refrigerant Recovery And Recycling — R–1234yf

R–1234yf Air Conditioning Refrigerant is a hydrofluo-

roolefin (HFO) that is endorsed by the Environmental

Protection Agency and is an ozone-friendly substance with a

low global-warming potential. The manufacturer recom-

mends that air conditioning service be performed by an

authorized dealer using recovery and recycling equipment.
NOTE:

Use only manufacturer approved A/C system PAG

compressor oil, and refrigerants.

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 unap-

proved refrigerants or lubricants can cause the system

to fail, requiring costly repairs. Refer to Warranty Infor-

mation 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 technician.

CAUTION!

Do not use chemical flushes in your air conditioning

system as the chemicals can damage your air

conditioning components. Such damage is not covered

by the New Vehicle Limited Warranty.

SERVICING AND MAINTENANCE

423

Cabin Filter Replacement (A/C Air Filter)

Refer to the “Maintenance Plan” for the proper maintenance

intervals.

The cabin air filter is located in the fresh air inlet behind the

glove compartment. Perform the following procedure to

replace the filter:
1. Open the glove compartment and remove all contents.

2. With the glove compartment door open, remove the

glove compartment tension tether and tether clip by

sliding the clip toward the face of the glove compartment

door. Lift the clip out of glove compartment door and

release into dash panel.

Right Side Of Glove Compartment

WARNING!

Do not remove the cabin air filter while the vehicle is

running, or while the ignition is in the ACC or ON/RUN

mode. With the cabin air filter removed and the blower

operating, the blower can contact hands and may propel

dirt and debris into your eyes, resulting in personal

injury.

1 — Glove Compartment Door

2 — Glove Compartment Tension Tether

7

424 SERVICING AND MAINTENANCE

3. There are travel stops on both sides of the glove compart-

ment. Push inward on right side of the glove compart-

ment travel stop to disengage the stop. Then pull the right

of the glove compartment outward (away from the hinge)

to disengaging the right side of the compartment from the

hinge. Continue by removing the left side from the hinge

by slightly lowering the compartment while pulling

outward until it is completely disengaged from the hinge.

Glove Compartment

4. Remove the filter cover by pushing in on the finger tabs

on each end of the filter cover.

Filter Cover

1 — Glove Compartment Travel Stop

2 — Glove Compartment Tension Tether

3 — Glove Compartment Door

SERVICING AND MAINTENANCE

425

Filter Cover Removal

5. Remove the cabin air filter by pulling it straight out of the

housing.

Cabin Air Filter

6. Install the cabin air filter with the arrow on the filter

pointing toward the floor. When installing the filter

cover, press on each end until you hear an audible click.

7. Reinstall the glove compartment on the hinges.

1 — Finger Tabs

CAUTION!

The cabin air filter is identified with an arrow to indicate

airflow direction through the filter. Failure to properly

install the filter will result in the need to replace it more

often.

7

426 SERVICING AND MAINTENANCE

8. Pull the tension tether outward and reinstall the glove

compartment past the travel stops by pushing in on the

glove compartment sides.

Right Side Of Glove Compartment

NOTE:

Ensure the glove compartment door hinges and glove

compartment travel stops are fully engaged.

9. Reattach the glove compartment tension tether by inserting

the tether clip in the glove compartment and sliding the clip

away from the face of the glove compartment door.

Accessory Drive Belt Inspection

1 — Glove Compartment Travel Stop

2 — Glove Compartment Tension Tether

WARNING!

• Do not attempt to inspect an accessory drive belt with

vehicle running.

• When working near the radiator cooling fan, discon-

nect the fan motor lead. The fan is temperature

controlled and can start at any time regardless of igni-

tion mode. You could be injured by the moving fan

blades.

• You can be badly injured working on or around a motor

vehicle. Only do service work for which you have the

knowledge and the proper equipment. If you have any

doubt about your ability to perform a service job, take

your vehicle to a competent mechanic.

SERVICING AND MAINTENANCE

427

When inspecting accessory drive belts, small cracks that run

across ribbed surface of belt from rib to rib, are considered

normal. These are not a reason to replace belt. However,

cracks running along a rib (not across) are not normal. Any

belt with cracks running along a rib must be replaced. Also

have the belt replaced if it has excessive wear, frayed cords

or severe glazing.

Accessory Belt (Serpentine Belt)

Conditions that would require replacement:
• Rib chunking (one or more ribs has separated from belt

body)

• Rib or belt wear
• Longitudinal belt cracking (cracks between two ribs)
• Belt slips
• “Groove jumping" (belt does not maintain correct position

on pulley)

• Belt broken (note: identify and correct problem before new

belt is installed)

• Noise (objectionable squeal, squeak, or rumble is heard or

felt while drive belt is in operation)

Some conditions can be caused by a faulty component such

as a belt pulley. Belt pulleys should be carefully inspected for

damage and proper alignment.
Belt replacement on some models requires the use of special

tools, we recommend having your vehicle serviced at an

authorized dealer.

7