1999 DODGE RAM wheel

Condition Code Procedure
Air pressure incorrect .. B .................. Require repair
Bead broken ............. A ............ Require replacement.
Bead leaking, caused
by tire ................ A .. Require repair or replacement.
Bead wire/cord exposed .. A ............ Require replacement.
Cord or belt material
exposed ................ A ............ Require replacement.
Cord ply separations .... A ............ Require replacement.
Directional/asymmetrical
tires mounted
incorrectly ............ B ....... Require remounting and/or
repositioning.
Irregular tread wear,
affecting performance .. 2 ........ (1) Suggest replacement.
Load ratings less
than OEM
specifications ......... B ............ Require replacement.
Mixed tread types (all
season, performance, mud
and snow) on same axle . A ............ Require replacement.
Number of punctures
exceeds manufacturer's
limit .................. B ............ Require replacement.
Out of balance .......... B . Require rebalance of tire/wheel
assembly.
Ply separation .......... A ............ Require replacement.
Pull or lead, caused
by tire ................ A .. Require repair or replacement.
Radial and bias or
bias-belted ply tires
on same axle ........... B .. Require repair or replacement.
Radials are on the front
and not on the rear .... B ........... ( 2) Require repair or
replacement.
Run flat damage ......... A ............ Require replacement.
Shoulder cut ............ A ............ Require replacement.
Shoulder puncture ....... A ............ Require replacement.
Shoulder with plug ...... A ............ Require replacement.
Sidewall bulge .......... A ............ Require replacement.
Sidewall cut ............ A ............ Require replacement.
Sidewall indentation .... .. ......... No service required or
suggested.
Sidewall puncture ....... A ............ Require replacement.
Sidewall with plug ...... A ............ Require replacement.
Speed rating
designations
different
on same axle ........... 2 .. Suggest repair or replacement.
Tire and wheel assembly
has excessive run-out .. B ........... ( 3) Require repair or
replacement of appropriate
part.
Tires with more than
1/4" diameter difference
on a four-wheel drive
vehicle ................ B ............ Require replacement.
Tread area puncture larger
in diameter than
manufacturer's
specifications ......... B ............ Require replacement.
Tread missing pieces

(chunking),
exposing cord .......... A ............ Require replacement.
Tread missing pieces
(chunking), not
exposing cord .......... 1 ............ Suggest replacement.
Tread separations A ............ Require replacement.
Tube in tubeless tire 3 .... (4) Suggest removal of tube.
Weather-checking ........ .. ......... No service required or
suggested.
Worn to tread wear
indicators ............. B ............ Require replacement.
( 1) - Determine and correct cause of irregular tire wear.
( 2) - If radials and bias or bias-belted ply tires are on the
same vehicle, the radials must be on the rear axle,
except for high-pressure temporary spares.
( 3) - Excessive is defined as enough to contribute to
performance problems. Match mounting may correct
run-out. If not, require replacement of appropriate
part. Refer to manufacturer's specifications.
( 4) - Most manufacturers do not recommend tubes in tubeless
tires. Inspect tire and wheel assembly to determine
the reason for a tube in tubeless tire. Recommendation
for repair or replacement should be based upon condition
of tires and/or wheel listed in these guidelines.









\









\









\









\









\









\









\


VALVE STEMS
VALVE STEM INSPECTION








\









\









\









\









\









\









\


Condition Code Procedure
Bent .................... 1 ........... Suggest replacement.
Broken .................. A ........... Require replacement.
Cut, but not leaking .... 1 ........... Suggest replacement.
Deteriorated
(cracking, dry rot) .... 1 ........... Suggest replacement.
Leaking ................. A . Require repair or replacement.
Missing ................. C ........... Require replacement.
Threads damaged ......... A . Require repair or replacement.
Threads stripped ........ A ........... Require replacement.
Valve cap missing ....... C .... Require replacement of cap.
Weather-checking ........ 1 ........... Suggest replacement.
Won't take air .......... A . Require repair or replacement.









\









\









\









\









\









\









\


WHEEL ATTACHMENT HARDWARE
For conditions noted below, also check conditions of wheel
stud holes.
CAUTION: Proper lug nut torque is essential. Follow recommended
torque specifications and tightening sequence. DO NOT
lubricate threads unless specified by the vehicle
manufacturer.
WHEEL ATTACHMENT HARDWARE INSPECTION









\









\









\









\









\









\









\


Condition Code Procedure
Bent .................... A ............ Require replacement.
Broken .................. A ........ ( 1) Require replacement.

Loose ................... B ... Require repair or replacement
of affected component.
Lug nut installed
backward ............... B .. Require repair or replacement.
Lug nut mating type
incorrect .............. B ..... Require replacement of nut.
Lug nut mating surface
dished ................. A ..... Require replacement of nut.
Lug nut rounded ......... A . (2) Require replacement of nut.
Lug nut seized .......... A . ( 2) Require replacement of nut.
Stud incorrect .......... B .... Require replacement of stud.
Threads damaged ......... A ... Require repair or replacement
of component with damaged
threads.
Threads stripped ........ A .......... Require replacement of
component with stripped
threads.
( 1) - Some manufacturers require replacement of all studs on
that wheel if two or more studs or nuts on the same
wheel are broken or missing.
( 2) - Only required if removing wheel.









\









\









\









\









\









\









\


WHEELS (RIMS)
WARNING: Mounting a regular tire on a high-pressure compact spare
wheel is not permitted. Attempting to mount a tire of one
diameter on a wheel of a different diameter or flange
type may result in serious injury or death. If the wheel
identification stamp is not legible, or cannot be found,
do not use the wheel until the size and type have been
properly identified. Wheels of different diameter,
offset, or width cannot be mixed on the same axle. Bead
seat tapers cannot be interchanged.
WHEEL (RIM) INSPECTION









\









\









\









\









\









\









\


Condition Code Procedure
Bead leaking, caused
by wheel ............... A ........... ( 1) Require repair or
replacement.
Bent hub mounting
surface ................ A ............ Require replacement.
Bent rim, causing
vibration .............. 2 ........ ( 1) Suggest replacement.
Broken .................. A ............ Require replacement.
Cast wheel porous,
causing a leak ......... A .. Require repair or replacement.
Clip-on balance weight is
incorrect type
for rim flange ......... 2 ............ Suggest replacement.
Corrosion, affecting
structural integrity ... A ............ Require replacement.
Corrosion build-up on
wheel mounting
surface ................ A ................. Require repair.
Cracked ................. A ............ Require replacement.
Directional/asymmetrical
wheels mounted
incorrectly ............ B ....... Require remounting and/or
repositioning.

Load capacity less than
OEM specifications ..... B ............ Require replacement.
Offset mismatched
on same axle ........... B ............ Require replacement.
Rivets leaking .......... A ............ Require replacement.
Run-out beyond
OEM specs .............. B ............ Require replacement.
Stud holes elongated .... A ........ (2) Require replacement.
Welded or brazed
repair ................. 2 ............ Suggest replacement.
Welds leaking ........... A ............ Require replacement.
Wheel centering (pilot)
hole incorrect ......... B ............ Require replacement.
( 1) - CAUTION: DO NOT attempt to correct a bent rim.
( 2) - Inspect wheel attaching hardware for damage.









\









\









\









\









\









\









\

Fig. 3: Fuel Heater Relay Terminals
Courtesy of Chrysler Corp.
Intake Manifold Air Heater Relays
1) Intake manifold air heater relays may also be referred to
as intake air heater relays. Intake manifold air heater relays are
mounted on inner wheelwell, below driver's side battery. See Fig. 4.
2) Disconnect negative battery cables. Note location of
wiring on intake manifold air heater relays for reassembly reference.
Disconnect all electrical connectors and cables from intake manifold
air heater relays.
3) Connect ohmmeter between large terminals on intake
manifold air heater relay to check for continuity. Using jumper wires,
momentarily apply battery voltage to relay trigger wire terminals
(small wire terminals) at base of intake manifold air heater relay.
See Fig. 4 . Polarity is not important.
4) Intake manifold air heater relay should click and ohmmeter
should indicate continuity between large terminals when battery
voltage is applied to relay trigger wire terminals. If intake manifold
air heater relay operation is not as specified, replace intake
manifold air heater relay with bracket. Test remaining intake manifold
air heater relay. Remove ohmmeter. Reconnect all electrical connectors
and negative battery cables.
NOTE: For additional information on checking wiring circuit for
intake manifold air heater relay, see DTC P0380: INTAKE AIR
HEATER RELAY NO. 1 CONTROL CIRCUIT and DTC P0382: INTAKE AIR
HEATER RELAY NO. 2 CONTROL CIRCUIT tests in SELF-DIAGNOSTICS
- JEEP, TRUCKS & RWD VANS article.

NOTE: Turbocharger is not serviceable and must be replaced as a
complete assembly. Turbocharger overhaul procedures should
only be performed by an authorized facility.
Turbocharger is mounted on exhaust manifold. See Fig. 1.
Exhaust gases rotate turbine wheel along with the shaft and compressor
wheel. Rotating of compressor wheel forces an increased amount of
airflow (boost pressure) through intercooler and then into intake
manifold where the air is distributed into each cylinder. Supplying
increased airflow provides improved engine performance, lower exhaust
smoke density, altitude compensation and reduced engine noise.
Turbocharger contains a wastegate which is used for controlling boost
pressure at high speeds. Turbocharger is lubricated by pressurized
engine oil from engine oiling system. Excess engine oil is returned
through turbocharger oil return line into the cylinder block.
Fig. 2: Locating Fuel System & Various Engine Components
Courtesy of Chrysler Corp.
COMPUTERIZED ENGINE CONTROLS

* Charging System
* Cruise Control System
* Intake Manifold Air Heater
* Tachometer
* Torque Convertor Clutch Engagement (A/T Only)
* Transmission Overdrive Solenoid (A/T Only) Components are
grouped into 2 categories. The first category covers INPUT
DEVICES, which control or produce voltage signals monitored
by the PCM. The second category covers OUTPUT SIGNALS, which
are components controlled by the PCM. See PCM INPUT SIGNALS
and ECM/PCM OUTPUT SIGNALS.
ECM INPUT SIGNALS
Accelerator Pedal Position Sensor (APPS)
APPS sensor is mounted on top left of engine. See Fig. 2.
Sensor provides DC voltage input signal to Engine Control Module (ECM)\
to indicate throttle position. On previous engines, there were
linkages between accelerator pedal, throttle position sensor and
injection pump. On this engine, no linkage exists between accelerator
pedal and injection pump. ECM uses input signals from APPS sensor to
determine proper fuel delivery. ECM also outputs this signal to PCM.
Battery Voltage
Battery voltage input signal provides operating voltage to
Engine Control Module (ECM). This input signal keeps ECM memory alive
and informs ECM what generator output voltage is when engine is
running. ECM memory is used to store Diagnostic Trouble Codes (DTCs),
store APPS sensor voltages from previous key cycles and provide a
speed control adaptive memory.
Camshaft Position Sensor (CMP)
Camshaft Position (CMP) sensor is a hall effect sensor (0-5
volts switched), located below injection pump in rear face of timing
gear cover. Sensor is not used for fuel control. Sensor is used only
for diagnostic purposes.
CCD Bus Circuits
These circuits are connected between Engine Control Module
(ECM) and Powertrain Control Module (PCM) to allow communication
between modules.
Crankshaft Position Sensor (CKP)
Crankshaft Position (CKP) sensor delivers input signal (35
tooth wheel with gap) to Engine Control Module (ECM) to indicate
engine speed and crankshaft position. ECM uses CKP signal along with
other input signals for controlling injector firing sequence and
timing. Sensor is located below fuel transfer pump, on side of engine
block. See Fig. 2.
Data Link Connector (DLC)
Data Link Connector (DLC) provides an input signal to Engine
Control Module (ECM) when using scan tool to retrieve Diagnostic
Trouble Codes (DTCs) from ECM. Input signal may also be used when
performing various tests on the ECM and electronic control system.
Data link connector is a 16-pin connector located at lower edge of
driver's side of instrument panel, just above accelerator pedal.
Engine Coolant Temperature (ECT) Sensor
Engine coolant temperature sensor delivers input signal to
Engine Control Module (ECM) to indicate engine coolant temperature.
ECM uses input signal for controlling fuel control and timing. Engine
coolant temperature sensor is located on front of head, near

located in power distribution center at driver's side front corner of
engine compartment, near the battery. Automatic Shutdown (ASD) relay
may also be referred to as Auto Shutdown (ASD) relay.
Battery Temperature Sensor
Battery temperature sensor delivers input signal to
Powertrain Control Module (PCM) to indicate the battery temperature.
PCM uses battery temperature input to modify rate of output from the
charging system. Battery temperature sensor is snapped into battery
tray below driver's side battery.
Battery Voltage
Battery voltage input signal provides operating voltage to
Powertrain Control Module (PCM). This input signal keeps PCM memory
alive and informs PCM what generator output voltage is when engine is
running. PCM memory is used to store Diagnostic Trouble Codes (DTCs),
store APPS sensor voltages from previous key cycles and provide a
speed control adaptive memory.
Brake Switch
Brake switch delivers input signal to Powertrain Control
Module (PCM) to indicate when brakes are applied. PCM uses input
signal for controlling cruise control system and transmission torque
converter clutch operation on A/T models. Brake switch is located near
top of brake pedal and may also be referred to as brakelight switch.
CKP Sensor
Crankshaft Position (CKP) sensor delivers input signal (35
tooth wheel with gap) to Engine Control Module (ECM) to indicate
engine speed and crankshaft position. ECM uses CKP signal along with
other input signals for controlling injector firing sequence and
timing. Sensor is located below fuel transfer pump, on side of engine
block. See Fig. 2.
Cruise Control System Switches
Cruise control system functions, controlled by momentary
contact switches, are monitored through multiplexed input signal to
Powertrain Control Module (PCM). Resistance monitored at this input
signal, in conjunction with the length of time the PCM measures the
resistance, determines which switch feature has been selected.
Data Link Connector (DLC)
Data Link Connector (DLC) provides an input signal to
Powertrain Control Module (PCM) when using scan tool to retrieve
Diagnostic Trouble Codes (DTCs) from PCM. Input signal may also be
used when performing various tests on the PCM and electronic control
system. DLC is a 16-pin connector located at lower edge of driver's
side of instrument panel, just above accelerator pedal.
Fuel Level Sensor
The Powertrain Control Module (PCM) sends a 5-volt signal to
the fuel level sensor. The fuel level sensor will return a signal to
PCM. This signal is used for fuel gauge operation and to prevent
setting a false misfire or fuel system trouble codes. If fuel level is
less than 15 percent, PCM will not set code.
Ignition Sense
Ignition switch position input to Powertrain Control Module
(PCM). PCM uses input to determine proper output functions, including
cruise control, generator output, sensor supply and transmission
functions.
Transmission Speed Sensor (A/T Models)