transmission DODGE RAM 1999 Service Repair Manual
[x] Cancel search | Manufacturer: DODGE, Model Year: 1999, Model line: RAM, Model: DODGE RAM 1999Pages: 1691, PDF Size: 40.34 MB
Page 952 of 1691

NOTE: Park/neutral switch may also be referred to as park/neutral
position switch.
Removal (A/T Models)
Raise and support vehicle. Disconnect 3-pin electrical
connector from park/neutral switch. Park/neutral switch is located on
driver's side of transmission case, near shift linkage. See Fig. 10.
Unscrew park/neutral switch from transmission case. Remove seal ring
from park/neutral switch.
Installation
1) Apply parking brake. Place shift lever in 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 Mopar Plus 7176 ATF as necessary.
POWER STEERING PRESSURE SWITCH
Removal & Installation (Dakota 2.5L)
1) Power steering pressure switch is located in pressure line
near power steering pump. See Fig. 11. Disconnect electrical connector
at power steering pressure switch.
2) Place small container below power steering pressure switch
to collect power steering fluid. Remove power steering pressure switch
from pressure line while using a back-up wrench to prevent damage to
pressure line.
3) To install, reverse removal procedure. Tighten power
steering pressure switch to specification. See TORQUE SPECIFICATIONS.
Check and fill power steering pump with Mopar Power Steering Fluid if
necessary. DO NOT use ATF in power steering pump.
Fig. 11: Locating Power Steering Pressure Switch (Dakota 2.5L)
Courtesy of Chrysler Corp.
POWER TAKE-OFF (PTO) SWITCH
Page 954 of 1691

Fig. 12: Installing Typical TP Sensor
Courtesy of Chrysler Corp.
TRANSMISSION GOVERNOR PRESSURE SENSOR
Removal & Installation (A/T Models)
Transmission governor pressure sensor is located in governor
body on transmission valve body. See appropriate ELECTRONIC CONTROLS
article in AUTOMATIC TRANSMISSIONS section.
TRANSMISSION OVERDRIVE SWITCH
NOTE: Transmission overdrive switch may also be referred to as
overdrive/override switch, OD switch or overdrive off
switch.
Removal & Installation (A/T Models)
Transmission overdrive switch is located on end of gear shift
lever. Service information is not available from manufacturer.
TRANSMISSION SPEED SENSOR
Removal & Installation (A/T Models)
Transmission speed sensor may also be referred to as output
shaft speed sensor. See OUTPUT SHAFT SPEED SENSOR under ENGINE SENSORS
& SWITCHES.
Page 955 of 1691

TRANSMISSION TEMPERATURE SENSOR
Removal & Installation (A/T Models)
Transmission temperature sensor is located on transmission
valve body, incorporated into governor pressure sensor. See
appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS
section.
UPSTREAM OXYGEN SENSOR
NOTE: Upstream oxygen sensor may also be referred to as pre
-catalyst oxygen sensor.
Removal
Upstream oxygen sensor is mounted on exhaust pipe, in front
of catalytic converter. Raise and support vehicle. Disconnect
electrical connector for upstream oxygen sensor. Using Socket
(YA8875), remove upstream oxygen sensor from exhaust pipe.
Installation
1) If installing original or used upstream oxygen sensor,
apply anti-seize compound on threads of upstream oxygen sensor. A NEW
upstream oxygen sensor should already be coated with anti-seize
compound.
2) Install and tighten upstream oxygen sensor to
specification. See TORQUE SPECIFICATIONS. Install electrical
connector.
MOTORS, RELAYS & SOLENOIDS
IDLE AIR CONTROL (IAC) MOTOR
Removal & Installation (Dakota, Durango, Ram Pickup 3.9L,
5.2L & 5.9L, Ram Van & Ram Wagon)
1) IAC motor is located on throttle body and contains a 4-pin
electrical connector. On Ram Van and Ram Wagon, remove engine cover.
2) On all models, remove air inlet duct or air cleaner
assembly for access to IAC motor. Disconnect electrical connector at
IAC motor. Remove retaining bolts and IAC motor from throttle body.
3) To install, reverse removal procedure. Tighten IAC motor
retaining bolts to specification. See TORQUE SPECIFICATIONS.
Removal & Installation (Ram Pickup 8.0L)
1) IAC motor is located at rear of throttle body and contains
a 4-pin electrical connector. Remove air inlet duct at air cleaner
assembly. Remove cover from air cleaner assembly.
2) Remove air cleaner housing-to-throttle body nuts and air
cleaner housing from throttle body. Disconnect electrical connector at
IAC motor. Remove retaining bolts and IAC motor.
3) To install, reverse removal procedure. Tighten IAC motor
retaining bolts and air cleaner housing-to-throttle body nuts to
specification. See TORQUE SPECIFICATIONS.
A/C RELAY, AUTO SHUTDOWN (ASD) RELAY & FUEL PUMP RELAY
NOTE: A/C relay may also be referred to as A/C clutch relay or A/C
compressor clutch relay.
Removal & Installation
Relays are located in Power Distribution Center (PDC). Relays\
may be identified by label on inside of PDC cover. See POWER
DISTRIBUTION CENTER (PDC) LOCATION table.