RAM 3500 Chassis Cab (2021 year). Manual in english — page 23

362

SERVICING AND MAINTENANCE

Change automatic

transmission fluid (AS69RC

transmission only).

X

X

X

X

X

Change the automatic

transmission fluid and sump filter

(AS69RC transmission only).

X

X

Change automatic

transmission fluid and filter(s)

(AS69RC transmission only).

X

Replace Crankcase Ventilation

Filter (CCV).

X

X

Flush and replace power

steering fluid.

X

Mileage or time passed

(whichever comes first):

7,

500

15,000

22,500

30,000

37,500

45,000

52,500

60,000

67,500

75,000

82,500

90,000

97,500

105,000

112,500

120,000

127,500

135,000

142,500

150,000

Or Months:

6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120

Or Kilometers:

12,000

24,000

36,000

48,000

60,000

72,000

84,000

96,000

108,000

120,000

132,000

144,000

156,000

168,000

180,000

192,000

204,000

216,000

228,000

240,000

SERVICING AND MAINTENANCE

363

(Continued)

Inspection and service should also be performed

anytime a malfunction is observed or suspected.

Retain all receipts.

Flush and replace engine

coolant. ***

X

1. Under no circumstances should oil change intervals exceed 15,000 miles (24,000 km) or 12 months or 500 Hours, whichever comes first.

2. Under no circumstances should the engine air cleaner filter exceed 30,000 miles (48,000 km) or 24 months, whichever comes first.

3. Inspect the front and rear axle surfaces every 20,000 miles (32,000 km). 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 the axle fluid every 20,000 miles (32,000 km).

Mileage or time passed

(whichever comes first):

7,

500

15,000

22,500

30,000

37,500

45,000

52,500

60,000

67,500

75,000

82,500

90,000

97,500

105,000

112,500

120,000

127,500

135,000

142,500

150,000

Or Months:

6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120

Or Kilometers:

12,000

24,000

36,000

48,000

60,000

72,000

84,000

96,000

108,000

120,000

132,000

144,000

156,000

168,000

180,000

192,000

204,000

216,000

228,000

240,000

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 malfunc

-

tion and effect vehicle handling and perfor

-

mance. This could cause an accident.

WARNING!

(Continued)

CAUTION!

***The manufacturer highly recommends that

all cooling system service, maintenance, and

repairs be performed by an authorized dealer.

8

364

SERVICING AND MAINTENANCE

ENGINE COMPARTMENT

6.4L E

NGINE

1 — Engine Coolant Pressure Cap

6 — Battery

2 — Engine Coolant Pressure Reservoir

7 — Engine Air Cleaner Filter

3 — Engine Oil Fill

8 — Power Steering Reservoir Cap

4 — Engine Oil Dipstick

9 — Power Distribution Center (Fuses)

5 — Brake Fluid Reservoir Cap

10 — Washer Fluid Reservoir Cap

SERVICING AND MAINTENANCE

365

6.7L E

NGINE

1 — Battery

7 — Brake Fluid Reservoir Cap

2 — Engine Coolant Pressure Cap

8 — Battery

3 — Engine Coolant Pressure Reservoir

9 — Power Distribution Center (Fuses)

4 — Engine Oil Fill

10 — Washer Fluid Reservoir Cap

5 — Engine Oil Dipstick

11 — Power Steering Reservoir Cap

6 — Automatic Transmission Dipstick

12 — Engine Air Cleaner Filter

8

366

SERVICING AND MAINTENANCE

C

HECKING

O

IL

L

EVEL

To ensure proper engine lubrication, 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.
There are four possible dipstick types:



Crosshatched zone.



Crosshatched zone marked SAFE.



Crosshatched zone marked with MIN at the

low end of the range and MAX at the high end

of the range.



Crosshatched zone marked with dimples at

the MIN and the MAX ends of the range.

NOTE:

Always maintain the oil level within the cross

-

hatch markings on the dipstick.

Adding 1 quart (1 liter) of oil when the reading is

at the low end of the dipstick range will raise the

oil level to the high end of the range marking.

A

DDING

W

ASHER

F

LUID

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 antifreeze).

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 solution

used with water as directed on the container,

aids cleaning action, reduces the freezing point

to avoid line clogging, and is not harmful to

paint or trim.

M

AINTENANCE

-F

REE

B

ATTERY

Your vehicle is equipped with a maintenance-free

battery. You will never have to add water, and

periodic maintenance is not required.

CAUTION!

Overfilling or underfilling the crankcase 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

367

NOTE:

Replacement batteries should both be of equal

capacity to prevent damage to the vehicle's

charging system.

P

RESSURE

W

ASHING

Cleaning the engine compartment with a high

pressure washer is not recommended.

VEHICLE MAINTENANCE

An authorized dealer has the qualified service

personnel, special tools, and equipment to

perform all service operations in an expert

manner. Service Manuals are available which

include detailed service information for your

vehicle. Refer to these Service Manuals before

attempting any procedure 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

Ú

page 345.



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 acces

-

sories 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 nega

-

tive 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 corrosion.



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.

CAUTION!

Precautions have been taken to safeguard

all parts and connections however, the

pressures generated by these machines is

such that complete protection against water

ingress cannot be guaranteed.

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.

8

368

SERVICING AND MAINTENANCE

E

NGINE

O

IL

Engine Oil Selection — Gasoline Engine

For best performance and maximum protection

under all types of operating conditions, the

manufacturer only recommends engine oils that

are API Certified and meet the requirements of

FCA Material Standard MS-12633.

NOTE:

Hemi engines (6.4L) at times can tick right after

startup and then quiet down after approxi

-

mately 30 seconds. This is normal and will not

harm the engine. This characteristic can be

caused by short drive cycles. For example, if the

vehicle is started then shut off after driving a

short distance. Upon restarting, you may experi

-

ence a ticking sound. Other causes could be if

the vehicle is unused for an extended period of

time, incorrect oil, extended oil changes or

extended idling. If the engine continues to tick

or if the Malfunction Indicator Light (MIL) comes

on, see the nearest authorized dealer.

Engine Oil Selection — Diesel Engine

For best performance and maximum protection

under all types of operating conditions, the

manufacturer only recommends engine oils

that are API CK-4 certified and meet the

requirements of FCA US LLC. Use Mopar or an

equivalent oil meeting FCA Material Standard

MS-10902. Products meeting Cummins CES

20081 may also be used. The identification of

these engine oils are typically located on the

back of the oil container.

American Petroleum Institute (API) Engine

Oil Identification Symbol

This symbol means that the oil has been

certified by the American Petroleum

Institute (API). The manufacturer only

recommends API Certified engine oils.

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

5W-30 and 10W-30 engine oils.
For diesel engines, oils with a high ash content

may produce damaging deposits on cylinder

head valves and/or after-treatment system

damage. A maximum sulfated ash content of

1.00 mass % is recommended for all oil used in

the engine.
The same oil change interval is to be followed

for synthetic oil as for petroleum-based oil. Also,

synthetic oil must meet the same performance

specifications as petroleum oil.

Synthetic Engine Oils

You may use synthetic engine oils provided the

recommended oil quality requirements are met,

and the recommended 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 addition of any additives (other than

leak detection dyes) to the engine oil. Engine oil

is an engineered product and its performance

may be impaired by supplemental additives.

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

369

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, indiscriminately

discarded, can present a problem to the

environment. Contact an authorized dealer,

service station or governmental agency for

advice on how and where used oil and oil filters

can be safely discarded in your area.

E

NGINE

O

IL

F

ILTER

The engine oil filter should be replaced with a

new filter at every engine oil change.
Engine Oil Filter Selection
A full-flow type disposable oil filter should

be used for replacement. The quality of

replacement filters varies considerably.

Only high quality Mopar certified filters should

be used.

E

NGINE

A

IR

C

LEANER

F

ILTER

For the proper maintenance intervals

Ú

page 354.

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 ensure most efficient

service. Mopar engine air cleaner filters are a

high quality filter and are recommended.

Engine Air Cleaner Filter Inspection And

Replacement — Gasoline Engine

Inspect engine air cleaner filter for dirt and or

debris, if you find evidence of either dirt or

debris you should change your engine air

cleaner filter.

NOTE:

When replacing the engine air cleaner filter on

vehicles equipped with a 6.4L gasoline engine,

replace with a dry (non-oiled) filter only.

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.

8

370

SERVICING AND MAINTENANCE

Engine Air Cleaner Filter Removal

1. With suitable tool fully loosen (six)

fasteners on engine air cleaner filter.

Engine Air Cleaner Filter

2. Lift the engine air cleaner filter cover to

access the engine air cleaner filter.

3. Remove the engine air cleaner filter from

the housing assembly.

Engine Air Cleaner Filter Assembly

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if dirt or debris is

present before replacing the engine air cleaner

filter.

1. Install the engine air cleaner filter into the

housing assembly with the engine air

cleaner filter inspection surface facing

downward.

2. Install the engine air cleaner filter cover

onto the housing assembly.

3. Tighten the fasteners (six) on the engine air

cleaner filter assembly.

Engine Air Cleaner Filter Inspection and

Replacement — Diesel Engine

Inspect engine air cleaner filter for dirt and or

debris, if you find evidence of either dirt or

debris you should change your engine air

cleaner filter.
Engine Air Cleaner Filter Removal

1. Remove the screws from the engine air

cleaner filter cover.

Engine Air Cleaner Filter Cover

1 — Fasteners
2 — Air Hose Clamp
3 — Engine Air Cleaner Filter Cover

1 — Engine Air Cleaner Filter Cover
2 — Engine Air Cleaner Filter

1 — Engine Air Cleaner Filter Cover
2 — Screws

SERVICING AND MAINTENANCE

371

2. Lift the engine air cleaner filter cover to

access the engine air cleaner filter.

3. Remove the engine air cleaner filter from

the housing assembly.

Engine Air Cleaner Filter

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if dirt or debris is

present before replacing the engine air cleaner

filter.

1. Install the engine air cleaner filter into the

housing assembly with the engine air

cleaner filter inspection surface facing

downward.

2. Install the engine air cleaner filter cover

onto the housing assembly locating tabs.

3. Install screws to secure the engine air

cleaner filter cover to the housing assembly.

A

IR

C

ONDITIONER

M

AINTENANCE

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 — Engine Air Cleaner Filter
2 — Engine Air Cleaner Filter Inspection Surface

WARNING!



Use only refrigerants and compressor lubri

-

cants approved by the manufacturer for

your air conditioning system. Some unap

-

proved refrigerants are flammable and can

explode, injuring you. Other unapproved

refrigerants or lubricants can cause the

system to fail, requiring costly repairs.

Refer to Warranty Information Book, for

further warranty information.



The air conditioning system contains refrig

-

erant 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.

8

372

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 — If Equipped

R-1234yf Air Conditioning Refrigerant is a

hydrofluoroolefin (HFO) that is endorsed

by the Environmental Protection Agency and

is an ozone-friendly substance with a low

global-warming potential. The manufacturer

recommends 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.

Cabin Air Filter Replacement

For the proper maintenance intervals

Ú

page 354.

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

SERVICING AND MAINTENANCE

373

3. There are travel stops on both sides of the

glove compartment. Push inward on right

side of the glove compartment 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

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 — Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door

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.

8

374

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.

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.

A

CCESSORY

D

RIVE

B

ELT

I

NSPECTION

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 sepa

-

rated 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)

1 — Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door

WARNING!



Do not attempt to inspect an accessory

drive belt with vehicle running.



When working near the radiator cooling fan,

disconnect the fan motor lead. The fan is

temperature controlled and can start at any

time regardless of ignition 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

375

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.

D

RAINING

F

UEL

/W

ATER

S

EPARATOR

F

ILTER

There are two fuel filter assemblies. One is

located on the driver's side of the engine.

The best access to this water drain valve is from

under the hood. The second one is on the under

body, located in front of the rear axle above the

drive shaft on pick-up models. The Chassis Cab

models second filter location is on the frame

behind the front axle. The best access to this

water drain valve is from under the vehicle.

If water is detected in the water separator while

the engine is running, or while the ignition

switch is in the ON position, the “Water In Fuel

Indicator Light” will illuminate and an audible

chime will be heard five times. At this point you

should stop the engine and drain the water from

both of the filters.

If the “Water In Fuel Indicator Light” comes on

and a single chime is heard while you are

driving, or with the ignition switch in the ON

position, there may be a problem with your

water separator wiring or sensor. See an

authorized dealer for service.
Upon proper draining of the water from both

fuel filters, the “Water In Fuel Indicator Light”

will remain illuminated for approximately

10 seconds. If the water was drained while

the engine was running, the “Water In Fuel

Indicator Light” may remain on for

approximately three minutes.

NOTE:

Care should be taken in disposing of used fluids

from your vehicle. Used fluids, indiscriminately

discarded, can present a problem to the envi

-

ronment. Contact an authorized dealer, service

station, or government agency for advice on

recycling programs and for where used fluids

and filters can be properly disposed of in your

area.

Drain the fuel/water separator filters when the

“Water In Fuel Indicator Light” is ON. Within

10 minutes of vehicle shutdown, turn the engine

mounted filter drain valve (located on the side of

the filter assembly) counterclockwise a quarter

turn, and turn the under body mounted filter

drain valve (located on the bottom of the filter

assembly) counterclockwise 1 full turn. Then turn

the ignition switch to the ON position, and allow

any accumulated water to drain. Leave the drain

valve open until all water and contaminants have

been removed. When clean fuel is visible, close

the drain valve following these guidelines:

1. Rotate the drain clockwise to close until

you feel resistance from the internal seal.

2. Continue turning the drain half of a turn to

properly compress the seal.

CAUTION!



Do not drain the fuel/water separator filter

when the engine is running.



Diesel fuel will damage blacktop paving

surfaces. Drain the filter into an appro

-

priate container.

CAUTION!

If the “Water In Fuel Indicator Light” remains

on, DO NOT START the engine before you

drain water from the fuel filters to avoid

engine damage.

8

376

SERVICING AND MAINTENANCE

NOTE:

Over-compression of the seal due to over-tight

-

ening of the drain will damage the seal, cause

a leak, and require the entire sensor to be

replaced.

3. Turn the ignition switch to OFF.

The sensor drain should not be over-tightened

during normal service operations to avoid

internal damage and future fuel leaks.

The drain should be closed and secured

without the use of tools.
If more than a couple ounces/milliliters of fuel

have been drained, follow the directions for

“Priming If The Engine Has Run Out Of Fuel”

Ú

page 378

E

NGINE

M

OUNTED

F

UEL

F

ILTER

R

EPLACEMENT

NOTE:



Using a fuel filter that does not meet the

manufacturer's filtration and water sepa

-

rating requirements can severely impact fuel

system life and reliability.



The engine mounted filter housing is

equipped with a No-Filter-No-Run (NFNR)

feature. Engine will not run if:

a. No filter is installed.

b. Inferior/Non-approved filter is used.

Use of OEM filter is required to ensure

vehicle will run.

Engine Mounted Fuel Filter Assembly

1. Ensure engine is turned off.

2. Place drain pan under the fuel filter drain

hose.

3. Open the water drain valve a quarter turn

counterclockwise and completely drain fuel

and water into the approved container.

4. Close the water drain valve.

5. Remove lid using a socket or strap wrench.

Rotate counterclockwise for removal.

Remove used o-ring and discard it.

1 — Drain Valve

CAUTION!



Diesel fuel will damage blacktop paving

surfaces. Drain the filter into an appro

-

priate container.



Do not prefill the fuel filter when installing a

new fuel filter. There is a possibility debris

could be introduced into the fuel filter

during this action. It is best to install the

filter dry and allow the in-tank lift pump to

prime the fuel system.

SERVICING AND MAINTENANCE

377

6. Remove the used filter cartridge from the

housing and dispose of according to your

local regulations.

7. Wipe clean the sealing surfaces of the lid

and housing.

8. Install new o-ring back into ring groove on

the filter housing and lubricate with clean

engine oil.

9. Remove new filter cartridge from plastic bag

and install into housing.

NOTE:

Do not remove cartridge from bag until you

reach this step in order to keep cartridge clean.

10. Push down on the cartridge to ensure it is

properly seated. Do not pre-fill the filter

housing with fuel.

11. Install lid onto housing and tighten to

22.5 ft lbs (30.5 N.m). Do not overtighten

the lid.

12. Prime the engine

Ú

page 378. Then start

the engine and confirm there are no leaks.

U

NDERBODY

M

OUNTED

F

UEL

F

ILTER

R

EPLACEMENT

NOTE:



Using a fuel filter that does not meet the

manufacturer's filtration and water sepa

-

rating requirements can severely impact fuel

system life and reliability.



The underbody mounted filter housing will

cause the engine not to run if:

a. No filter is installed.

Underbody Mounted Fuel Filter Assembly

1. Ensure engine is turned off.

2. Place drain pan under the fuel filter drain

hose.

3. Open the water drain valve one full turn

counterclockwise and completely drain fuel

and water into the approved container.

4. Close the water drain valve.

5. Remove lid using a socket or strap wrench.

Rotate counterclockwise for removal.

Remove used o-ring and discard it.

6. Remove the used filter cartridge from the

housing and dispose of according to your

local regulations.

1 — Drain Valve

CAUTION!



Diesel fuel will damage blacktop paving

surfaces. Drain the filter into an appro

-

priate container.



Do not prefill the fuel filter when installing a

new fuel filter. There is a possibility debris

could be introduced into the fuel filter

during this action. It is best to install the

filter dry and allow the in-tank lift pump to

prime the fuel system.

8