1999 DODGE RAM sensor


MIR RO RS - P O W ER

1999 D odge P ic ku p R 1500
1999 ACCESSORIES & EQUIPMENT
CHRY - Power Mirrors
Caravan, Dakota, Durango, Ram Pickup, Ram Van, Ram Wagon,
Town & Country, & Voyager
DESCRIPTION
Outside power rear view mirrors consist of door-mounted
mirrors with internal motor drive and backing plate. On Caravan, Town
& Country, and Voyager, mirrors are controlled by a rocker switch for
left or right mirror selection and a platform button for up, down,
right and left movement. On Dakota, Durango, Ram Pickup, Ram Van and
Ram Wagon, mirrors are controlled by a single, multifunction,
joystick-type switch assembly. On all models, mirror motors are
integral with mirror assemblies and cannot be serviced separately. On
Dakota and Durango, fold-away rear view mirrors are optional.
Dakota, Durango and Ram Pickup are equipped with an automatic
dimming day/night inside mirror. The mirror uses 2 photocell sensors
to monitor ambient and rear facing light levels. The mirror
automatically adjusts its reflectance to reduce headlight glare from
vehicles approaching from the rear. The mirror is controlled by an
off/on switch located on the mirror bottom.
Caravan, Ram Pickup, Town & Country and Voyager have optional
heated outside mirrors. On Caravan, Town & Country and Voyager, heated
mirror is activated whenever the rear defogger is on. On Ram Pickup,
heated mirror is activated by switch in dash. A timer turns off mirror
heater after about 10 minutes.
COMPONENT TESTS
AUTOMATIC DAY/NIGHT INSIDE MIRROR
1) Turn ignition switch to ON position with transmission in
Neutral or Park. Place mirror switch in ON position (switch LED
illuminated). Cover forward facing sensor with a dark cloth or tape to
exclude any ambient light. See Fig. 1.
2) Shine a light into rear-facing sensor. Observe whether or
not mirror darkens. With mirror darkened, place transmission in
Reverse. Mirror should return to normal. If conditions of steps 1) and
2) are met, mirror is operating correctly. If conditions are not met,
go to next step.
3) Turn ignition on. Check for battery voltage at fuse No. 11
in junction block. If battery voltage exists on both sides of fuse, go
to next step. If battery voltage does not exist, repair circuit to
junction block. See WIRING DIAGRAMS. If fuse is blown, repair short
circuit and replace fuse.
4) Check for battery voltage at day/night mirror wire
connector terminal No. 1 (Dark Blue/White wire). If battery voltage
exists, go to next step. If battery voltage does not exist, repair
open circuit between mirror and junction block.
5) Check for continuity between ground and day/night mirror
wire connector terminal No. 2 (Black wire). If continuity exists, go
to next step. If continuity does not exist, repair open ground
circuit.
6) Check for battery voltage at day/night mirror wire
connector terminal No. 3 (Violet/Black wire) with transmission in
Reverse. If battery voltage exists, replace mirror. If battery voltage
does not exist, check back-up light circuit. See WIRING DIAGRAMS.

CAUTION: If turbocharger failure exists, intercooler must be cleaned.
See INTERCOOLER under AIR INDUCTION SYSTEMS.
Removal
1) Disconnect negative battery cables. Disconnect air inlet
tube and exhaust pipe from turbocharger. Disconnect intercooler inlet
duct from turbocharger. See Fig. 2.
2) Disconnect and plug turbocharger oil supply line and
turbocharger oil drain line at turbocharger. Remove turbocharger
retaining nuts, turbocharger and gasket from exhaust manifold. Plug
all air intake openings.
Installation
1) Apply anti-seize compound on turbocharger mounting studs.
Using NEW gasket, install turbocharger. Install and tighten
turbocharger retaining nuts to specification. See TORQUE
SPECIFICATIONS.
2) Using NEW gasket, install turbocharger oil drain line on
turbocharger. Install and tighten turbocharger oil drain line bolts to
specification. See TORQUE SPECIFICATIONS.
CAUTION: Turbocharger must be pre-lubricated by pouring clean engine
oil in turbocharger oil supply line fitting on turbocharger
before starting the engine.
WARNING: DO NOT rotate turbine wheel in turbocharger with your finger,
as sharp edges may exist.
3) Pour 3 ozs. (60 cc) of clean engine oil into turbocharger\
oil supply line fitting on turbocharger while using soft object to
rotate turbine wheel in turbocharger. This must be done to pre-
lubricate the turbocharger.
4) Install turbocharger oil supply line on turbocharger and
tighten nut to specification. See TORQUE SPECIFICATIONS. To install
remaining components, reverse removal procedure. Tighten bolts/nuts to
specification. See TORQUE SPECIFICATIONS.
TURBOCHARGER WASTEGATE ADJUSTMENT
NOTE: For turbocharger wastegate adjustment, see CONTROL ROD
ADJUSTMENT under TURBOCHARGER WASTEGATE in ON-VEHICLE
ADJUSTMENTS - DIESEL article.
ENGINE SENSORS & SWITCHES
ENGINE COOLANT TEMPERATURE SENSOR
Removal & Installation
1) Engine coolant temperature sensor is located at front of
cylinder head near thermostat. See Fig. 3.
2) Partially drain cooling system until coolant level is
below the cylinder head. Disconnect ECT sensor electrical connector.
Remove ECT sensor from cylinder head. Discard "O" ring. To install,
reverse removal procedure. Use new "O" ring.
CRANKSHAFT POSITION SENSOR (CKP)
NOTE: Crankshaft Position (CKP) sensor may be referred to as engine\
speed sensor.
Removal & Installation
1) CKP sensor is located on left rear side of engine block

near starter motor. See Fig. 3. Disconnect negative battery cables.
Disconnect electrical wiring harness connector for CKP sensor.
2) Remove starter motor. Remove CKP sensor mounting bolt and
bracket. Pull CKP sensor from engine block with a twisting motion. To
install CKP sensor, reverse removal procedure. Tighten CKP bolt to
specification. See TORQUE SPECIFICATIONS
INTAKE MANIFOLD AIR TEMPERATURE SENSOR
Removal & Installation
1) Disconnect electrical connector from intake manifold air
temperature sensor. See Fig. 3. Remove intake manifold air temperature
sensor from intake manifold cover.
2) To install, reverse removal procedure. Tighten intake
manifold air temperature sensor to specification. See TORQUE
SPECIFICATIONS.
Fig. 3: Locating Diesel System Components
Courtesy of Chrysler Corp.
PARK/NEUTRAL SWITCH

Removal (A/T Models)
Raise and support vehicle. Disconnect electrical connector
from park/neutral switch. Park/neutral switch is located on side of
transmission case, near shift linkage. Unscrew park/neutral switch
from transmission case. Remove seal ring from park/neutral switch.
Installation
1) Apply parking brake. Place shift lever in Park and
Neutral. Ensure park/neutral switch operating levers in transmission
are centered in the park/neutral switch opening on transmission case.
2) Using NEW seal ring, install park/neutral switch. Tighten
park/neutral switch to specification. See TORQUE SPECIFICATIONS.
Install electrical connector. Add ATF as necessary.
ACCELERATOR PEDAL POSITION SENSOR (APPS)
NOTE: APPS is replaced as assembly, including lever, brackets, and
sensor.
Removal
1) Disconnect negative battery cables. Remove cable cover.
Using finger pressure only, disconnect end of speed control servo
cable from throttle lever pin by pulling forward on connector while
holding lever rearward. Using 2 small screwdrivers, pry throttle cable
connector socket from throttle lever ball.
2) Disconnect transmission kickdown cable (if equipped).
Compress pinch tabs on cruise control and throttle cables. Pull cables
rearward to remove from cable mounting brackets. See Fig. 4.
Disconnect electrical connector and retaining bolts. Remove APPS
sensor.
Installation
To install, reverse removal procedure. To calibrate ECM, turn
ignition on. Without starting engine, slowly press throttle pedal to
floor and then slowly release.
Fig. 4: Locating Throttle Position (TP) Sensor
Courtesy of Chrysler Corp.
RELAYS & SOLENOIDS

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) Remove nameplate located above rocker lever covers. Remove
fuel injector drain line-to-fuel injector banjo bolt and seal washer
from each fuel injector. Plug all fuel openings.
2) Remove fuel injector drain line assembly retaining clamp
at rear of intake manifold. Remove fuel injector drain line bolt with
seal washers at filter mounting head. See Fig. 3. Remove fuel injector
drain line assembly.
Installation
To install, reverse removal procedure using NEW seal washers.
Tighten bolts to specification. See TORQUE SPECIFICATIONS.
FUEL HEATER
Removal & Installation
Fuel heater is located in FUEL FILTER/WATER SEPARATOR &
WATER-IN-FUEL SENSOR. See FUEL FILTER/WATER SEPARATOR & WATER-IN-FUEL
SENSOR.
FUEL INJECTOR
Removal
1) Disconnect negative battery cables. Each fuel injector is
connected to each high-pressure fuel line with a steel connector line.
Steel connector is positioned into cylinder head and sealed with "O"
ring. See Fig. 8. If removing injector at cylinder No. 1 or No. 2,
remove intake manifold air heater assembly. If removing injector at
cylinder No. 5, remove engine lifting bracket. Ensure area around fuel
injector and high-pressure fuel line is clean. Disconnect high-
pressure fuel line at fuel injector. DO NOT bend any high-pressure
fuel line to gain access to fuel injector. It may be necessary to
remove high-pressure fuel lines from fuel injection pump for access to
fuel injector.
2) If removing high-pressure fuel lines from fuel injection
pump, mark high-pressure fuel line location for installation
reference. Remove valve cover. Thread Fuel Injector Connector Tube
Remover (8324) onto end of injector connector tube. Remove and discard\
old "O" ring from injector connector tube.
3) Remove fuel injector hold down clamp bolt at front end of
clamp. DO NOT loosen or remove shouldered bolt at rear of clamp.
Remove injector clamp by sliding it from shoulders on rear clamp bolt.
Thread rod from fuel injector remover into top of fuel injector.
Tighten nut to remove fuel injector from cylinder head. Remove and
discard "O" ring and copper sealing washer.
Fig. 8: Removing Fuel Injector
Courtesy of Chrysler Corp.
Installation
1) Clean fuel injector bore on cylinder head with wire brush.

Apply light coat of engine oil on NEW .060" (1.5 mm) thick Copper
sealing washer. Install NEW Copper sealing washer on spray tip of fuel
injector. Engine oil is used to aid holding sealing washer in place.
Install new "O" ring on fuel injector. Apply small amount of engine
oil to "O" ring.
2) Ensure fuel inlet hole on side of fuel injector is
positioned toward injector connector tube. Install injector into
cylinder head bore using care not to allow injector tip to touch sides
of bore. Press fuel injector into cylinder head with finger pressure
only. Install fuel injector hold down clamp into shouldered bolt while
aligning slot in top of injector into groove in bottom of clamp.
Tighten opposite clamp bolt to specification. See TORQUE
SPECIFICATIONS.
3) Apply small amount of clean engine oil to NEW "O" ring.
Install "O" ring to fuel injector connector tube. Using finger
pressure only, press injector connector tube into cylinder head.
Connect and tighten high pressure fuel lines to specification. See
TORQUE SPECIFICATIONS.
NOTE: Fuel line fitting torque is important. Mating surfaces will
not seal if fuel line fitting is under or over-torqued.
4) To install remaining components, reverse removal
procedure. Tighten bolts to specification. See TORQUE SPECIFICATIONS.
Bleed high-pressure fuel lines. See FUEL LINE BLEEDING under FUEL
SYSTEM.
FUEL INJECTION PUMP
CAUTION: High-pressure fuel lines must be clamped securely and routed
so they do not contact each other or any other components. DO
NOT weld or substitute high-pressure fuel lines. High
-pressure lines are same length and proper high-pressure fuel
line must be installed in specified area for proper engine
operation.
Removal
1) Disconnect negative battery cables. Clean fuel lines at
cylinder head and injection pump. Clean fuel injection pump and fuel
lines at side of pump. Disconnect 9-pin electrical connector at Fuel
Pump Control Module (FPCM). Place a rag around overflow valve to catch\
excess fuel. Remove overflow valve and disconnect fuel return line.
Remove banjo bolts and fuel supply line at side of injection pump and
top of fuel filter housing.
2) Remove all high pressure fuel lines, intake air tube,
accelerator pedal position sensor, air intake housing, engine oil
dipstick tube, wiring clips, electrical connectors at intake heaters,
and engine lifting bracket. Unscrew plastic access cap at front gear
cover. Remove injection pump gear-to-injection pump shaft nut and
washer.
3) Engine may be rotated by removing dust plug from
transmission adapter plate and installing Engine Barring Tool (Snap-On
SP371) in transmission adapter plate. See Fig. 9. Rotate engine until
keyway is at 12 o'clock position.