1999 DODGE RAM fuel filter

Further inspection required.
Canister attaching
hardware broken ........ A ... Require repair or replacement
of hardware.
Canister attaching
hardware loose ......... A ................. Require repair.
Canister attaching
hardware missing ....... C ............ Require replacement.
Canister attaching
hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Center tube collapsed ... A ........ (2) Require replacement.
Further inspection required.
Contaminated ............ A ...... ( 3) Require replacement of
oil and filter.
Dented .................. 2 ........ ( 4) Suggest replacement.
Further inspection required.
Leaking ................. A .. Require repair or replacement.
Maintenance intervals ... 3 ... Suggest replacement to comply
with vehicle's OEM recommended
service intervals.
( 1) - Inspect pressure relief valve.
( 2) - Inspect bypass.
( 3) - Determine cause of contamination, such as engine coolant,
fuel, metal particles, or water when changing oil. Require
repair or replacement.
( 4) - Determine cause, such as broken motor mount.









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ENGINE OIL GASKETS
See ENGINE OIL DRAIN PLUGS AND GASKETS .
ENGINE OIL PRESSURE GAUGES (MECHANICAL)
ENGINE OIL PRESSURE GAUGE (MECHANICAL) INSPECTION








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Condition Code Procedure
Indicates out of range .. B .......... ( 1) Further inspection
required.
Inoperative ............. A .......... ( 2) Further inspection
required.
Leaking ................. A .. Require repair or replacement.
Reads inaccurately ...... 2 .. Suggest repair or replacement.
( 1) - Gauge may indicate problem with contaminated oil, level,
pressure, or temperature, or problem with gauge.
( 2) - Gauge may indicate problem with contaminated oil, level,
pressure, or temperature, or problem with gauge.
Inoperative includes intermittent operation, out of OEM
specification, or out of range. Further inspection
required to determine cause.









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EVAPORATIVE EMISSION (EVAP) CANISTER FILTERS
EVAPORATIVE EMISSION (EVAP) CANISTER FILTER INSPECTION








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Condition Code Procedure

performance ............ A ........... (2) Require repair or
replacement. Further
inspection required.
( 1) - Inoperative includes intermittent operation.
( 2) - Some components may be serviceable; check for accepted
cleaning procedure.









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FUEL FILLER NECKS AND RESTRICTORS
FUEL FILLER NECK AND RESTRICTOR INSPECTION








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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Leaking ................. A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Restricted .............. 2 .. Suggest repair or replacement.









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FUEL FILTERS
FUEL FILTER INSPECTION








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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Leaking ................. A .. Require repair or replacement.
Maintenance interval .... 3 ... Suggest replacement to comply
with OEM recommended service
interval.
Missing ................. C ............ Require replacement.
Restricted, affecting
performance ............ A ............ Require replacement.
Restricted, not affecting
performance ............ 1 ............ Suggest replacement.
Water-contaminated ...... 2 ............ Suggest replacement.









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FUEL INJECTORS
FUEL INJECTOR INSPECTION








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Condition Code Procedure
Attaching hardware

refer to the 5.9L V8 TURBO DIESEL - VIN [D] article.
in the ENGINE MECHANICAL section.
Drain fuel/water separator by pushing up on the valve
located on the bottom of the fuel filter until clear fuel
is visible. Drain fuel into a container and follow proper
disposal procedures.
CAUTION: DO NOT drain fuel/water separator when engine is running or
hot. Allow engine to cool before draining. Verify that the
WATER IN FUEL light on instrument panel is OFF.
ADDITIONAL SERVICE INFORMATION - CNG MODELS
Fig. 11: Locating CNG Components
Courtesy of Chrysler Corp.

Fig. 15: CNG Fuel Filter
Courtesy of Chrysler Corp.
IDENTIFICATION LABEL LOCATIONS
Fig. 16: Identification Label Locations
Courtesy of Chrysler Corp.

CAUTION: If fuel contamination due to fungi or other microorganisms is
suspected a fuel additive with a biocide may be used. Follow
the manufacturers dosage as recommended on product label. Use
biocides ONLY when necessary, excessive use can may cause
other fuel system problems.
DIESEL FUEL CONTAMINATION
WARNING: Diesel fuel system may be contaminated with fungi or other
microorganisms. Keep contaminated fuel away from open skin
cuts or sores to prevent skin irritation or infection.
DIESEL FUEL REQUIREMENTS
CAUTION: All diesel engines have been developed to take advantage of
the high energy content of No. 2 diesel fuel or No. 2
climatized-diesel fuels. It also operates on No. 1-diesel
fuels if temperatures are expected to be extended arctic
conditions -10
\bF (-23\bC).
WARNING: Do NOT use alcohol or gasoline as a fuel blending agent. They
can be unstable under certain conditions and hazardous or
explosive when mixed with diesel fuel.
ELECTROSTATIC DISCHARGE SENSITIVE (ESD) PARTS
WARNING: Many solid state electrical components can be damaged by
static electricity (ESD). Some will display a warning label,
but many will not. Discharge personal static electricity by
touching a metal ground point on the vehicle prior to
servicing any ESD sensitive component.
ENGINE OIL
CAUTION: Never use non-detergent or straight mineral oil.
ENGINE OIL FILTER (CARTRIDGE TYPE)
CAUTION: Use of Mopar Oil Filter Cartridge (P/N 04746914) is
RECOMMENDED. The engine oil filter cartridge should be
changed at every engine oil change. Use the same type oil
that will be used in the engine.
FUEL SYSTEM SERVICE
WARNING: Relieve fuel system pressure prior to servicing any fuel
system component (fuel injection models).
HALOGEN BULBS
WARNING: Halogen bulbs contain pressurized gas which may explode if
overheated. DO NOT touch glass portion of bulb with bare
hands. Eye protection should be worn when handling or working
around halogen bulbs.
RADIATOR CAP
CAUTION: Always disconnect the fan motor when working near the
radiator fan. The fan is temperature controlled and could
start at any time even when the ignition key is in the OFF
position. DO NOT loosen or remove radiator cap when cooling
system is hot.

FUEL LINE BLEEDING
NOTE: Fuel line bleeding is necessary if fuel injection pump is
replaced, fuel filter/water separator is not filled with
diesel fuel before installing or vehicle ran out off fuel.
Bleed high-pressure fuel lines if connections are loosened or
replaced. If engine has not been operated for an extended
time, bleed fuel lines before next initial engine start-up.
WARNING: DO NOT bleed fuel lines on a hot engine, as high exhaust
temperatures may cause a fire. Carefully bleed fuel lines, as
fuel is under extremely high pressure and could penetrate
skin. Use safety goggles and protective clothing when
bleeding fuel lines.
1) Loosen banjo bolt holding low-pressure fuel supply line to
side of fuel injection pump. Wrap a towel around banjo fitting to
catch fuel. Crank engine quickly and release key before engine starts.
This will operate fuel transfer pump for about 25 seconds.
2) If fuel is not present at fuel supply line after 25
seconds, turn ignition off. Repeat engine crank procedure until fuel
is present at fuel supply line. Tighten banjo bolt at fuel supply line
to specification. See TORQUE SPECIFICATIONS.
CAUTION: Ensure parking brake is applied and transmission is in
Neutral before bleeding fuel injection pump or high-pressure
fuel lines. DO NOT operate starter for more than 30 seconds
when bleeding fuel injection pump or high-pressure fuel
lines. Allow 2-minute intervals between starter operations.
3) To bleed air from fuel injection pump, ensure parking
brake is applied and transmission is in Neutral, as engine may start
when operating starter to bleed air from fuel injection pump. Operate
starter for 30 seconds to bleed any trapped air in fuel injection
pump.
4) To bleed high-pressure fuel lines, ensure parking brake is
applied and transmission is in Neutral, as engine may start when
operating starter to bleed high-pressure fuel lines. Loosen high-
pressure fuel line nut at fuel injector.
5) Operate starter until steady fuel flow exists at high-
pressure fuel line. Tighten high-pressure fuel line nut to
specification. See TORQUE SPECIFICATIONS. Start engine. Repeat
procedure on each high-pressure fuel line until engine operates
smoothly.
FUEL FILTER/WATER SEPARATOR & WATER-IN-FUEL SENSOR
NOTE: Vehicle also contains an in-tank fuel filter located on
bottom of fuel tank module. For servicing procedure, see FUEL
TANK MODULE & IN-TANK FUEL FILTER under FUEL SYSTEM.
NOTE: When fuel filter/water separator is being replaced,
manufacturer recommends cleaning the pre-filter. See FUEL
HEATER under FUEL SYSTEM for servicing of pre-filter.
Removal
1) Ensure engine is off. Place drain pan below drain tube at
fuel filter/water separator. See Fig. 3. Rotate handle on drain valve
forward, toward front of vehicle to DRAIN position. Drain valve is
located near top of fuel filter/water separator. See Fig. 3. Once fuel
is drained from fuel filter/water separator, rotate handle on drain
valve back to CLOSE position.

2) Disconnect drain tube from drain valve. Disconnect
electrical connector for Water-In-Fuel (WIF) sensor at bottom of fuel
filter/water separator. See Fig. 3.
3) Support canister for fuel filter/water separator and
remove canister nut from top of filter mounting head. See Fig. 3.
Remove canister with fuel filter/water separator and seal ring from
filter mounting head. Remove fuel filter/water separator from
canister.
4) Remove "O" ring from top of shaft inside the canister.
Remove bolts and drain valve from canister (if necessary).
5) Check the 2 probes inside the canister on end of WIF
sensor for contamination. Clean probes if contaminated. If
contamination cannot be removed from the probes, replace WIF sensor.
If replacing WIF sensor, remove WIF sensor and "O" ring from canister.
6) Fuel heater is located inside fuel filter housing. Heater
mounting plate, heating element, temperature sensor, and wiring
harness are serviced as an assembly. Disconnect heater electrical
connector from engine wiring harness near upper rear part of filter.
7) Disconnect electrical connector at end of 2-wire harness
before attempting to pass harness through filter header. Remove clip
retaining wires to connector. Remove wires from connector. Remove 3
fuel heater screws. Press on heater sealing grommet to remove heater
from filter canister header. Pass wire through hole in filter header.
Remove fuel heater.
Installation
1) Ensure inside of canister is clean. Using NEW "O" ring,
install WIF sensor on canister (if removed). Tighten WIF sensor to
specification. See TORQUE SPECIFICATIONS.
2) Install drain valve on canister (if removed). Tighten
drain valve-to-canister bolts to specification. See TORQUE
SPECIFICATIONS.
3) Install NEW "O" ring on shaft inside canister. Coat "O"
ring with diesel fuel. Install NEW fuel filter/water separator and NEW
seal ring in canister. Coat seal ring with diesel fuel.
NOTE: Canister for fuel filter/water separator should be filled
with diesel fuel before installing. If canister cannot be
filled with diesel fuel, low-pressure fuel lines must be bled
after installation.
CAUTION: When installing canister on filter mounting head, ensure tab
areas on outside of canister align with tabs on filter
mounting head. This must be done to prevent damage to
canister and filter mounting head.
4) Fill canister for fuel filter/water separator with diesel
fuel. Install canister with fuel filter/water separator on filter
mounting head. Ensure canister fully engages with filter mounting head
and tab areas on outside of canister align with tabs on filter
mounting head.
5) Install and tighten canister nut to specification. See
TORQUE SPECIFICATIONS.
6) To install remaining components, reverse removal
procedure. If canister was not filled with diesel fuel, bleed low-
pressure fuel lines before starting engine. See FUEL LINE BLEEDING
under FUEL SYSTEM. Start engine and check for fuel leaks.
FUEL TANK MODULE & IN-TANK FUEL FILTER
NOTE: In-tank fuel filter is located on bottom of fuel tank module
which also contains the fuel gauge sending unit. Fuel tank
module is mounted on top of fuel tank.

Removal
1) Raise and support vehicle. Disconnect negative battery
cables. Drain fuel tank. Remove fuel tank filler tube bolts from body.
Support fuel tank with transmission jack. Remove fuel tank straps and
heat shields (if equipped).
2) Slightly lower fuel tank for access to fuel lines and
electrical connector at fuel tank module. Disconnect electrical
connector and fuel lines at fuel tank module. See Fig. 7. Use proper
procedure when disconnecting fuel lines. See FUEL LINE DISCONNECT
FITTINGS under FUEL SYSTEM.
NOTE: Information for servicing of in-tank fuel filter is not
available from manufacturer. If necessary to service in-tank
fuel filter, consult parts department to verify if filter may
be replace without replacing fuel tank module.
3) Note direction of fuel line connections on fuel tank
module for installation reference. Using Spanner Wrench (6856),
unscrew plastic fuel tank module lock nut from fuel tank. Remove fuel
tank module and gasket from fuel tank. Inspect in-tank fuel filter for
damage.
Installation
1) Using NEW gasket, install fuel tank module in fuel tank.
Install plastic fuel tank module lock nut finger tight. DO NOT tighten
plastic fuel tank module lock nut at this time.
2) Position fuel tank module so fuel line connections and
electric connection are facing toward driver's side of vehicle. This
must be done to prevent float on fuel gauge sending unit from
contacting fuel tank.
3) Once fuel tank module is properly positioned, tighten
plastic fuel tank module lock nut to specification. See TORQUE
SPECIFICATIONS.
4) Install fuel lines on fuel tank module using proper
procedure. See FUEL LINE DISCONNECT FITTINGS under FUEL SYSTEM.
Install electrical connector on fuel tank module. Reinstall fuel tank.
Tighten fuel tank strap nuts to specification. See TORQUE
SPECIFICATIONS. Reconnect negative battery cables.
Fig. 7: Locating Fuel Tank Module & Fuel Tank Rollover Valve
Courtesy of Chrysler Corp.
FUEL INJECTOR DRAIN LINE ASSEMBLY