1999 DODGE RAM lock

INTAKE MANIFOLD AIR HEATER
Removal & Installation
1) Disconnect negative battery cables. Disconnect clamp and
rubber hose at air intake housing. Remove engine oil dipstick tube
mounting bolt and position dipstick tube aside. Disconnect heater
electrical cables at cable mounting studs. Remove 4 air intake housing
bolts. Remove air intake housing from top of intake manifold air
heater elements. See Fig. 13.
2) Remove heater element assembly from intake manifold. Clean
old gasket from air intake housing, intake manifold, and both sides of
engine block. To install, reverse removal procedure using NEW gaskets.
Tighten all bolts to specification. See TORQUE SPECIFICATIONS.
Fig. 13: Removing Intake Manifold Air Heater
Courtesy of Chrysler Corp.
INTAKE MANIFOLD AIR HEATER RELAYS

Removal & Installation
See INTAKE MANIFOLD AIR HEATER RELAYS under RELAYS &
SOLENOIDS.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS








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Application Ft. Lbs. (N.m)\
Access Plug ................................................ 11 (15)\
AFC Line-To-Fuel Injection Pump Fitting .................... 18 (24)\
Air Inlet Housing Bolt ..................................... 18 (24)\
Engine Bracket-To-Engine Bolts ............................. 18 (24)\
Engine Coolant Temperature Sensor .......................... 40 (54)\
Engine Speed Sensor Nut .................................... 18 (24)\
Fuel Injection Pump Drive Gear Nut ....................... 125 (170)\
Fuel Injection Pump Lower Bracket-To-Pump Bolts ............ 18 (24)\
Fuel Injection Pump Mount Nuts ............................. 32 (43)\
Fuel Injector Retaining Nut ................................ 44 (60)\
Fuel Line-To-Fuel Heater Fitting ........................... 18 (24)\
Fuel Line-To-Fuel Transfer Pump ............................ 18 (24)\
Fuel Supply Line Banjo Bolt ................................ 18 (24)\
Fuel Tank Strap Nut ........................................ 30 (41)\
Fuel Transfer Pump Bolt .................................... 18 (24)\
High-Pressure Fuel Line Clamp Bolt ......................... 18 (24)\
High-Pressure Fuel Line Nut (At Injector) .................. 28 (38\
)
High-Pressure Fuel Line Nut (At Pump) ...................... 18 (24\
)
Intake Manifold Air Heater Housing Bolt .................... 18 (24)\
Intake Manifold Air Temperature Sensor ..................... 20 (27)\
Intake Manifold Cover Bolt ( 1) ............................. 18 (24)
Oil Fill Plug .............................................. 21 (29)\
Overflow Valve-To-Fuel Injection Pump ...................... 24 (33)\
Park/Neutral Switch ........................................ 25 (34)\
Plastic Fuel Tank Module Lock Nut .......................... 32 (43)\
Starter Mounting Bolt ...................................... 32 (43)\
Turbocharger Oil Drain Line Bolt ........................... 18 (24)\
Turbocharger Oil Supply Line Nut ........................... 11 (15)\
Turbocharger Retaining Nut ................................. 24 (33)\
INCH Lbs. (N.m)
Air Inlet Tube-To-Turbocharger Clamp Nut .................. 72 (8.1)\
Canister Nut ............................................ 120 (13.6)\
Condenser-To-Intercooler Nut ............................. 95 (10.7)\
Condenser-To-Intercooler Screw ........................... 95 (10.7)\
Drain Valve-To-Canister Bolt .............................. 40 (4.5)\
Exhaust Pipe-To-Turbocharger Clamp Nut .................... 72 (8.1)\
Fuel Bleed Bolt ........................................... 72 (8.1)\
Fuel Injector Drain Line Assembly Retaining Clamp Bolt .. 120 (13.6)\
Fuel Injector Drain Line-To-Fuel Injector Banjo Bolt ...... 84 (9.5)\
Intake Manifold Air Heater Relay Assembly Retaining Bolt .. 40 (4.5)\
Intercooler Bolt .......................................... 17 (1.9)\
Intercooler Inlet & Outlet Duct Clamp ..................... 72 (8.1)\
PCM Mounting Bolt ......................................... 35 (4.0)\
Water-In-Fuel (WIF) Sensor ................................ 20 (2.3\
)
( 1) - Apply thread sealant to bolt threads.









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N - R EM OVE/IN STA LL/O VER HAU L - R W D - G ASO LIN E

1999 D odge P ic ku p R 1500
1999 ENGINE PERFORMANCE
CHRY - Removal, Overhaul & Installation - Gasoline
Dakota, Durango, Ram Pickup, Ram Van, Ram Wagon
CAUTION: When battery is disconnected, vehicle computer and memory
systems may lose memory data. Driveability problems may exist
until computer systems have completed a relearn cycle. See
COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION
before disconnecting battery.
INTRODUCTION
Removal, overhaul and installation procedures are covered in
this article. If component removal and installation is basically an
unbolt and bolt-on procedure, only a torque specification may be
provided.
COMPUTERIZED ENGINE CONTROLS
POWERTRAIN CONTROL MODULE (PCM)
NOTE: If replacing Powertrain Control Module (PCM), the correct
vehicle mileage and Vehicle Identification Number (VIN) must
be programmed into the PCM to prevent Diagnostic Trouble
Codes (DTCs) from being set in the Anti-Lock Brake System
(ABS) module and Supplemental Restraint System (SRS) module\
.
To program PCM and clear DTCs from ABS and SRS modules, see
PCM PROGRAMMING. If replacing Powertrain Control Module (PCM)\
on models equipped with a Smart Key Immobilizer Module
(SKIM), the secret key data must also be updated to enable
engine starting. To update secret key data, see PCM
PROGRAMMING.
Removal & Installation
1) PCM is located in the engine compartment. See Figs. 1-3.
Disconnect negative battery cable. Remove cover for access to
electrical connectors at PCM. Disconnect electrical connectors from
PCM. Remove PCM retaining bolts and PCM.
2) To install, reverse removal procedure. Tighten PCM
retaining bolts to specification. See TORQUE SPECIFICATIONS.
Fig. 1: Locating PCM (Dakota & Durango)
Courtesy of Chrysler Corp.

Procedure For Programming PCM & Clearing DTCs From ABS & SRS
Modules
Connect scan tool to Data Link Connector (DLC). DLC is
located under left side of instrument panel. Using scan tool, enter
correct VIN and mileage into PCM. Using scan tool manufacturer's
instructions, clear DTCs from ABS and SRS modules.
Procedure For Updating Secret Key Data
1) Connect scan tool to Data Link Connector (DLC). DLC is
located under left side of instrument panel.
2) Go to ENGINE and then MISC menus on scan tool. Place the
SKIM in SECURED ACCESS MODE by using the appropriate Personal
Identification Number (PIN) for this vehicle. PIN may be obtained from\
the owner, vehicle's invoice, or from the manufacturer. Select UPDATE
THE SECRET KEY DATA. The data will be transferred from Smart Key
Immobilizer Module (SKIM) to the PCM, allowing the vehicle to start.
NOTE: On Ram Van and Ram Wagon, if 3 attempts are made to enter the
SECURED ACCESS MODE using the incorrect Personal
Identification Number (PIN), the SECURED ACCESS MODE will be
locked out for one hour. To exit this locked out mode, leave
ignition switch in the ON position for one hour with all
accessories turned off. It may be necessary to monitor
battery state and connect a battery charger if necessary.
ENGINE SENSORS & SWITCHES
BATTERY TEMPERATURE SENSOR
Removal & Installation
Battery temperature sensor is snapped into center of battery
tray, directly below the battery. Remove battery. Disconnect
electrical connector for battery temperature sensor. Pry battery
temperature sensor straight upward from battery tray. To install,
reverse removal procedure.
BRAKE SWITCH
NOTE: Brake switch may also be referred to as brakelight switch or
stoplight switch.
Removal (Dakota, Durango & Ram Pickup)
1) Brake switch is located near top of brake pedal. Remove
lower instrument panel cover for access to brake switch if necessary.
Disconnect electrical connector from brake switch. Depress and hold
brake pedal downward.
2) Rotate brake switch counterclockwise approximately 30
degrees so alignment tab on brake switch aligns with opening on
mounting bracket. Pull brake switch rearward from mounting bracket.
NOTE: Before installing brake switch, plunger on brake switch must
be pulled outward to fully extended position and then pushed
inward 4 detent positions to ensure proper brake switch
adjustment.
Installation
1) Pull plunger on brake switch outward to the fully extended
position. Push plunger on brake switch inward 4 detent positions. The
brake switch will click at each detent position when pushing plunger
inward.
2) Install electrical connector on brake switch. Depress
brake pedal as far as possible. Install brake switch in mounting

bracket. Ensure alignment tab on brake switch aligns with opening on
mounting bracket.
CAUTION: When adjusting brake switch, DO NOT pull brake pedal back
toward brake switch with excessive pressure, or brake switch
may be damaged.
3) When brake switch is fully installed in mounting bracket,
rotate brake switch clockwise approximately 30 degrees. To ensure
proper brake switch adjustment, gently pull brake pedal back toward
brake switch as far as possible. DO NOT apply excessive pressure on
brake pedal and brake switch.
Removal (Ram Van & Ram Wagon)
1) Brake switch is located near top of brake pedal. Remove
lower steering column cover. Remove data link connector, hood release
lever and parking brake lever from lower instrument panel cover.
2) Remove lower instrument panel cover for access to brake
switch. Depress and hold brake pedal downward. Rotate brake switch
counterclockwise approximately 1/16 turn to so locking collar on brake
switch aligns with opening on mounting bracket. Pull brake switch
rearward from mounting bracket. Disconnect electrical connector from
brake switch.
NOTE: Before installing brake switch, plunger on brake switch must
be pulled outward to fully extended position and then pushed
inward 4 detent positions to ensure proper brake switch
adjustment.
Installation
1) Pull plunger on brake switch outward to the fully extended
position. Push plunger on brake switch inward 4 detent positions. The
brake switch will click at each detent position when pushing plunger
inward.
2) Install electrical connector on brake switch. Depress
brake pedal as far as possible. Install brake switch in mounting
bracket. Ensure locking collar on brake switch aligns with opening on
mounting bracket.
CAUTION: When adjusting brake switch, DO NOT pull brake pedal back
toward brake switch with excessive pressure, or brake switch
may be damaged.
3) When brake switch is fully installed in mounting bracket,
rotate brake switch clockwise approximately 1/16 turn. To ensure
proper brake switch adjustment, gently pull brake pedal back toward
brake switch as far as possible. DO NOT apply excessive pressure on
brake pedal and brake switch.
CAMSHAFT POSITION SENSOR
Removal & Installation
See CAMSHAFT POSITION SENSOR under IGNITION SYSTEM.
CRANKSHAFT POSITION SENSOR
Removal & Installation
See CRANKSHAFT POSITION SENSOR under IGNITION SYSTEM.
DOWNSTREAM OXYGEN SENSOR
NOTE: Downstream oxygen sensor may also be referred to as post
-catalyst oxygen sensor.

NOTE: Oil pressure sensor may also be referred to as engine oil
pressure sensor.
Removal & Installation
For oil pressure sensor location, see OIL PRESSURE SENSOR
LOCATION table. Service information is not available from
manufacturer.
OIL PRESSURE SENSOR LOCATION









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Application Location
Dakota
2.5L ... ( 1) Passenger's Side Of Cylinder Block, Below Distributor
3.9L, 5.2L & 5.9L ... ( 1) Passenger's Side Rear Corner Of Cylinder
Block, Below Distributor
Durango .. ( 1) Passenger's Side Rear Corner Of Cylinder Block, Below
Distributor
Ram Pickup
3.9L, 5.2L & 5.9L ... ( 2) Passenger's Side Rear Corner Of Cylinder
Block, Below Distributor
8.0L ......................................... ( 2) Near Oil Filter
Ram Van & Ram Wagon ... ( 3) Passenger's Side Rear Corner Of Cylinder
Block, Below Distributor
( 1) - Contains a Gray/Yellow wire and a Black/Light Blue wire in the
electrical connector.
( 2) - Contains a Gray/Orange wire and a Black/Light Blue wire in the
electrical connector.
( 3) - Contains a Gray wire and a Black/Light Blue wire in the
electrical connector.









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OUTPUT SHAFT SPEED SENSOR
NOTE: Output shaft speed sensor may also be referred to as
transmission speed sensor.
Removal & Installation (A/T Models)
Output shaft speed sensor is located on lower edge of
overdrive case on rear of transmission. See Fig. 10. Disconnect
electrical connector at output shaft speed sensor. Remove output shaft
speed sensor with "O" ring from transmission. To install, reverse
removal procedure using NEW "O" ring.
Fig. 10: Locating Output Shaft Speed Sensor & Park/Neutral Switch
(A/T)
Courtesy of Chrysler Corp.
PARK/NEUTRAL SWITCH

Removal & Installation (Dakota 2.5L)
1) Crankshaft position sensor is located on driver's side of
engine at transmission bellhousing. See Fig. 18. Remove air inlet duct
between throttle body and air cleaner assembly.
2) Disconnect electrical connector for crankshaft position
sensor. Remove crankshaft position sensor retaining bolts and
crankshaft position sensor.
CAUTION: Retaining bolts for crankshaft position sensor are specially
machined bolts to provide correct clearance between
crankshaft position sensor and the flywheel. DO NOT use any
other type retaining bolts.
3) To install, reverse removal procedure. Tighten crankshaft
position sensor retaining bolts to specification. See TORQUE
SPECIFICATIONS.
Removal & Installation (Dakota 3.9L, 5.2L & 5.9L, & Durango)
1) Crankshaft position sensor is located on passenger side of
engine at transmission bellhousing, just behind the cylinder head. See
Fig. 19 . Passenger's side front fender wheelwell must be removed for
access to crankshaft position sensor.
2) Raise and support vehicle. Remove passenger side front
wheel. Remove wheel opening molding. Remove plastic rivets attaching
wheelwell to front fender. Remove wheelwell.
3) Disconnect electrical connector for crankshaft position
sensor. Remove crankshaft position sensor retaining bolts and
crankshaft position sensor.
4) To install, reverse removal procedure. Tighten crankshaft
position sensor retaining bolts and wheel lug nuts to specification.
See TORQUE SPECIFICATIONS.
Removal & Installation (Ram Pickup 3.9L, 5.2L & 5.9L, Ram Van
& Ram Wagon)
1) Crankshaft position sensor is located on passenger side of
engine at transmission bellhousing, just behind the cylinder head. See
Fig. 19 .
2) On Ram Van and Ram Wagon, remove engine cover. On Ram
Pickup, remove air inlet duct for access to crankshaft position
sensor.
3) On all models, disconnect electrical connector for
crankshaft position sensor. Remove crankshaft position sensor
retaining bolts and crankshaft position sensor.
4) To install, reverse removal procedure. Tighten crankshaft
position sensor retaining bolts to specification. See TORQUE
SPECIFICATIONS.
Removal (Ram Pickup 8.0L)
1) Crankshaft position sensor is located on passenger's side
of cylinder block, just above the oil pan. See Fig. 20.
2) Raise and support vehicle. Disconnect electrical connector
for crankshaft position sensor. Remove plastic tie strap securing
wiring harness to side of cylinder block.
3) Remove crankshaft position sensor retaining bolt. Using 2
small screwdrivers, carefully pry crankshaft position sensor with "O"
ring from cylinder block by rocking crankshaft position sensor back
and forth.
Installation
1) Apply light coat of engine oil on crankshaft position
sensor "O" ring. Install crankshaft position sensor in cylinder block
by rocking crankshaft position sensor back and forth. DO NOT twist
crankshaft position sensor during installation, or "O" ring may be

damaged.
CAUTION: Crankshaft position sensor must be flat against cylinder
block before tightening crankshaft position sensor retaining
bolt, or crankshaft position sensor may be damaged.
2) Ensure crankshaft position sensor is flat against cylinder
block. Install and tighten crankshaft position sensor retaining bolt
to specification. See TORQUE SPECIFICATIONS.
3) To install remaining components, reverse removal
procedure. Ensure NEW plastic tie is installed through hole on side of
cylinder block to secure wiring harness.
Fig. 18: Locating Crankshaft Position Sensor (Dakota 2.5L)
Courtesy of Chrysler Corp.
Fig. 19: Locating Crankshaft Position Sensor (Dakota 3.9L, 5.2L &
5.9L, Durango, Ram Pickup 3.9L, 5.2L & 5.9L, Ram Van & Ram Wagon)