1999 DODGE RAM oil pressure
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"B" ABBREVIATION TABLE
"B" ABBREVIATION TABLE
ABBREVIATION DEFINITION B/P Backpressure BAC By-Pass Air Control BAP Barometric Absolute Pressure Sensor BARO Barometric BBDC Before Bottom Dead Center BCM Body Control Module BDC Bottom Dead Center BHP Brake Horsepower BLK Black BLU Blue BMAP Barometric & Manifold Absolute Pressure
Sensor BOO Brake On-Off Switch BP Barometric Pressure sensor BPS Barometric Pressure sensor BPT Backpressure Transducer BRN Brown BTDC Before Top Dead Center BTU British Thermal Unit BVSV Bimetallic Switching Valve Baro. Barometric Batt. Battery Bbl. Barrel (Example:4-Bbl.) Blst. Ballast Blwr. Blower Brkr. Breaker
"C" ABBREVIATION TABLE
"C" ABBREVIATION TABLE
ABBREVIATION DEFINITION C Celsius (Degrees) C(3) Computer Controlled Coil Ignition C(4) Computer Controlled Catalytic Converter CANP Canister Purge solenoid CARB California Air Resources Board CAT Catalytic Converter CB Circuit Breaker CBD Closed Bowl Distributor CBVV Carburetor Bowl Vent valve cc Cubic Centimeter CCC Computer Command Control CCD Computer Controlled Dwell CCM Central Control Module CCO Converter Clutch Override CCOT Cycling Clutch Orifice Tube CCW Counterclockwise CDI Capacitor Discharge Ignition CEC Computerized Engine Control CFI Central Fuel Injection CID Cubic Inch Displacement CID Cylinder Identification sensor CIS Continuous Injection System CIS-E Continuous Injection System-Electronic
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Contour, Cougar, Escort, Mustang, Mystique, Tracer and Windstar,
drill two 1/2" holes in bottom of old accumulator, and drain. On
all models, add the same amount of oil drained plus 2 ounces of
refrigerant oil to new accumulator.
(2) - Add refrigerant oil following replacement of other system
components such as hoses, fixed orifice tube, A/C clutch cycling
switch, A/C compressor pressure relief valve, system pressure
cut-off switch, or service valve, compressor shaft seal, "O"
ring or hose leaks.
( 3) - If all lines have been replaced.
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HARRISON HD6/HT6, HD6/HR-6HE 6-CYL., V5 5-CYL. & V7 7-CYL.
NOTE: Replacement compressor may be shipped with 8-9 ounces of
refrigerant oil. Drain shipping refrigerant oil into a clean
container and retain for use.
1) If possible, operate system for several minutes to
stabilize system. Turn engine off. Discharge A/C system, using
approved refrigerant recovery/recycling equipment. Remove A/C
compressor. Drain and measure refrigerant oil from old compressor
through suction and discharge ports, and drain plug.
2) If no compressor oil leaks exist, and more than one ounce
is drained, add amount drained from old compressor. If less than one
ounce is drained from old compressor, add 2 ounces of refrigerant oil.
3) When replacing other A/C components, add specified amount
of refrigerant oil to component. See HD6/HT6, HD6/HR-6HE, V5 & V7
COMPONENT REFRIGERANT OIL CAPACITIES table. Install compressor drain
plug and compressor. Evacuate and charge system. Perform leak test.
Ensure A/C system is operating properly.
NOTE: Approximately 3 ounces of refrigerant oil, suspended in
refrigerant, will be lost due to a large, abrupt leak. When
replacing a faulty A/C component, add amount of oil specified
for component plus 3 ounces to compensate for oil loss. If
oil cannot easily be added to component, add it to
accumulator.
HD6/HT6, HD6/HR-6HE V5 & V7 COMPONENT REFRIGERANT OIL CAPACITIES
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Component Ounces
Cars
Accumulator/Receiver-Drier
Except "F", "N", "V" & "W" Bodies .......................... 3.5
"F", "N", "V" & "W" Bodies ................................. ( 1)
Compressor
"C" Body ................................................... ( 2)
"E", "K", "V" & "Y" Bodies ................................. 2.0
"F", "G", "H", "J", "P", "N" & "W" Bodies .................. ( 3)
Condenser .................................................... 1.0
Evaporator ................................................... 3.0
Trucks & Vans
Accumulator/Receiver-Drier
Except "U" Series .......................................... 3.5
"U" Series ................................................. ( 4)
Compressor
Except "U" Series .......................................... ( 3)
"U" Series ................................................. ( 2)
Condenser
Except "U" Series .......................................... 1.0
"U" Series ................................................. ( 4)
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compressor oil from suction and discharge ports as possible. Rotate
compressor shaft 6-8 revolutions by hand, while pouring oil from
ports. Collect oil in a clean container and measure amount drained. DO
NOT reuse old refrigerant oil.
2) If amount drained is 3-5 ounces, add amount drained plus
one ounce of refrigerant oil to compressor. If amount drained is more
than 5 ounces, add the same amount that was drained from compressor.
If amount drained is less than 3 ounces, add 3 ounces to compressor.
See SANDEN SCROLL COMPONENT REFRIGERANT OIL CAPACITIES (TAURUS 3.4L
SHO) table. Add refrigerant oil through suction port.
3) Use new "O" rings on refrigerant lines. Install A/C
compressor. Perform leak test. Evacuate and charge system. Ensure A/C
system is operating properly.
SANDEN SCROLL COMPONENT REFRIGERANT OIL CAPACITIES (TAURUS 3.4L SHO)
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Component Ounces
Accumulator .................................................... (1)
Condenser ...................................................... 1.0
Evaporator ..................................................... 3.0
Other Components ........................................... ( 2) 2.0
( 1) - Drill two 1/2" holes in bottom of old accumulator, and drain and
measure oil. Add the same amount of oil drained plus 2 ounces of
new refrigerant oil to replacement accumulator.
( 2) - Add specified amount of refrigerant oil following replacement of
other system components such as hoses, fixed orifice tube, A/C
clutch cycling switch, compressor pressure relief valve, system
pressure cut-off switch, or service valve, compressor shaft
seal, "O" ring or hose leaks.
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SANDEN MSC90-C SCROLL
Chrysler Corp. (Avenger & Sebring Coupe)
1) Drain oil from old compressor, and measure amount drained.
Replacement compressor is shipped with 5.7 ounces of refrigerant oil.
From replacement compressor, drain the difference between system oil
capacity and amount of oil drained from replacement compressor.
2) Add specified amount of refrigerant oil for components
that are replaced. See SANDEN MSC90-C COMPONENT REFRIGERANT OIL
CAPACITIES table. When replacing components listed, DO NOT exceed
system total capacity.
SANDEN MSC90-C COMPONENT REFRIGERANT OIL CAPACITIES
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Component Ounces
Condenser ...................................................... 0.5
Evaporator ..................................................... 2.0
Receiver-Drier ................................................. 0.3
Refrigerant Line ............................................... 0.3
System Total ................................................... 5.7
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SANDEN SD-7H15 7-CYLINDER
Chrysler Corp. & Jeep (Cherokee, Dakota, Durango, Ram Pickup
& Wrangler)
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove compressor and drain refrigerant
oil. Measure amount of oil removed and discard old oil.
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Removal
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove compressor. Using a spanner
wrench or clutch holder, remove clutch plate bolt. Discard bolt.
Thread an 8-mm bolt into clutch plate and remove clutch plate and
shims.
2) Remove shaft felt seal. Using low pressure compressed air
and a lint-free cloth, thoroughly clean seal inside and outside of
compressor nose area. Using Snap Ring Remover (T89P-19623-DH), rotate
eye of snap ring. Pull up snap ring while holding snap ring at an
angle.
3) Position Shaft Seal Remover (T89P-19623-BH) over
compressor shaft. Push shaft seal remover downward against seal.
Ensure end of shaft seal remover engages inside of seal.
4) Rotate shaft seal remover handle clockwise to expand
remover tip inside seal. Pull shaft seal from compressor.
Installation
1) Lubricate shaft seal protector and shaft seal with
refrigerant oil. Replacement Seal Kit (19D665) includes Shaft Seal
Protector (T94P-19623-F).
2) Coat shaft seal and protector with clean refrigerant oil.
Install shaft seal on shaft seal protector so lip of seal is toward
large end of shaft seal protector. Install shaft seal protector onto
compressor shaft.
3) Using Shaft Seal Replacer (T89P-19623-AH), slowly push
shaft seal down until it is seated. Remove shaft seal installer and
protector. Install new shaft seal snap ring. Rotate compressor shaft
about 10 revolutions and leak test shaft seal installation.
4) Install new shaft seal felt. Install clutch plate. Install
new clutch plate bolt, and tighten it to 98-123 INCH lbs. (11-14 N.m).\
5) Using a feeler gauge, measure air gap (in 3 places)
between clutch plate and pulley assembly mating surface. Air gap
should be 0.014-0.033" (0.36-0.84 mm). If air gap is not as specified,\
add or remove shims as necessary.
HARRISON HD6/HT6 & HD6/HR-6HE 6-CYL., V5 5-CYL. & V7 7-CYL.
CLUTCH ASSEMBLY
CAUTION: DO NOT hammer on compressor shaft to remove clutch plate, as
compressor damage will result.
Removal
1) Remove compressor from vehicle. Place compressor in
Holding Fixture (HD6/HT6 and HD6/HR-6HE compressor use J-33026; on V5
or V7 compressor use J-34992 or J-41790). On V5 or V7 compressor,
remove dust cover (if equipped). Use Clutch Plate Spanner (J-33027-A)\
to hold clutch plate and remove compressor shaft nut using Shaft Nut
Socket (J-33022). See Fig. 2 or 3.
2) On all compressors, using Clutch Plate Remover/Installer
(J-33013-B), remove compressor clutch plate and hub. See Fig. 2 or 3.
Hold remover body and turn center screw into remover body to remove
clutch plate and hub. Ensure forcing tip on remover/installer center
screw is flat or end of shaft/axial plate will be damaged. Remove
shaft key.
3) Remove snap ring. Install Puller Guide (J-33023-A) on
front head. Position Pulley and Bearing Puller (J-41552 for HD6/HT6
and HD6/HR-6HE or J-33020 for V5 or V7 compressor) into inner circle
of slots on pulley assembly. Turn puller clockwise in slots. Tighten
puller and remove pulley assembly.
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A/C -H EA TE R S YSTE M T R O UBLE S H O OTIN G
1999 D odge P ic ku p R 1500
1999 MANUAL A/C-HEATER SYSTEMS
Trouble Shooting - Cars & Trucks
CHRYSLER
Avenger, Breeze, Caravan, Cirrus, Concorde, Dakota, Durango,
Intrepid, LHS, Neon, Ram Pickup, Ram Van/Wagon, Sebring Convertible,
Sebring Coupe, Stratus, Town & Country, Voyager, 300M
A/C SYSTEM DIAGNOSIS
RAPID COMPRESSOR CLUTCH CYCLING
Some possible causes of rapid compressor clutch cycling,
clutch cycles 10 or more times per minute, include:
* Low refrigerant system charge.
* Faulty low pressure cycling clutch switch.
* Faulty PCM.
COMPRESSOR WILL NOT ENGAGE
Some possible causes of compressor not engaging with high and
low side system pressures equal include:
* No refrigerant in system.
* Faulty fuse.
* Faulty compressor clutch coil.
* Faulty compressor clutch relay.
* Faulty electronic cycling clutch switch.
* Improperly installed or faulty low pressure cycling clutch
switch.
* Faulty low pressure cut-off switch.
* Faulty high pressure cut-off switch.
* Faulty PCM.
* Faulty A/C-heater control panel.
TEMPERATURE IS TOO HIGH WITH A/C ON
Some possible causes of high temperature output at center
panel when A/C system pressure is normal include:
* Excessive oil charge in refrigerant.
* Temperature control cable improperly installed or faulty.
* Blend-air door inoperative, obstructed or sealing
improperly.
* Blend door actuator not calibrated.
LOW SIDE PRESSURE IS LOW-TO-NORMAL & HIGH SIDE PRESSURE IS
LOW
Some possible causes of low side system pressure being lower-
to-normal and high side system pressure being too low include:
* Low refrigerant system charge.
* Refrigerant flow through accumulator is restricted.
* Refrigerant flow through evaporator is restricted.
* Faulty compressor.
LOW SIDE PRESSURE IS HIGH-TO-NORMAL & HIGH SIDE PRESSURE IS
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HEATER HOSES
HIGH PRESSURE RELIEF VALVES (HPRV)
IDLERS
IN-LINE FILTERS
METAL FITTINGS
METAL LINES
MIX AND AIR CONTROL DOORS (BLEND DOORS)
O-RINGS
ORIFICE TUBES
PILOT-OPERATED ABSOLUTES (POAS)
PLENUMS
PRESSURE CONTROL VALVES
PRESSURE SENSORS
PULLEYS
RADIATORS
RECEIVER-DRIERS
REFRIGERANT
REFRIGERANT OIL
RELAYS
SEALS
SERVICE PORTS
SPRING LOCK COUPLINGS
SUCTION THROTTLING VALVES (STVS)
SWITCHES (ELECTRICAL)
TENSIONERS
THERMISTORS AND PRESSURE SENSORS
THERMOSTATS AND HOUSINGS
VACUUM HOSES AND TUBES
VACUUM RESERVOIRS
VACUUM TUBES
VALVES IN RECEIVER (VIRS)
WATER PUMPS (ELECTRIC AUXILIARY)
WIRING HARNESSES AND CONNECTORS
MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW
The Motorist Assurance Program is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
Our organization's mission is to strengthen the relationship
between the consumer and the auto repair industry. We produce
materials that give motorists the information and encouragement to
take greater responsibility for their vehicles-through proper,
manufacturer-recommended, maintenance. We encourage participating
service and repair shops (including franchisees and dealers) to adopt
(1) a Pledge of Assurance to their Customers and (2) the Motorist
Assurance Program Standards of Service. All participating service
providers have agreed to subscribe to this Pledge and to adhere to the
promulgated Standards of Service demonstrating to their customers that
they are serious about customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made and the results communicated to the\
customer according to industry standards. Given that the industry did
not have such standards, the Motorist Assurance Program successfully
promulgated industry inspection communication standards in 1994-95 for
the following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical Systems.
Further, revisions to all of these inspection communication standards
Page 82 of 1691
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Contaminated, affecting
performance ............ A ............ Require replacement.
Dessicant bag
deteriorated ........... A ........ (1) Require replacement.
Further inspection required.
Dessicant at the end of
its useful life (saturated
with moisture) ......... 1 .. Suggest repair or replacement.
Fusible plug leaking .... A .... Require replacement of plug.
Leaking ................. A ............ Require replacement.
Pressure relief device
leaking ................ A . Require replacement of pressure
relief device.
Restricted .............. A .. Require repair or replacement.
Sight glass no longer
transparent ............ 2 ... Suggest replacement of drier.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Tubing connection
leaking ................ A .. Require repair or replacement.
( 1) - Inspect system to determine effects of dessicant bag
deterioration.
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REFRIGERANT
NOTE: Refrigerants include any SNAP (Significant New Alternative
Policy)-approved blends.
REFRIGERANT INSPECTION
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Condition Code Procedure
Contaminated (other than
refrigerant blends) .... B ........ Require service to remove
contamination.
Different types of
refrigerants in the same
system (other than
refrigerant blends) .... B ................. Require repair.
Overcharged ............. B ................. Require repair.
Refrigerant type
does not match
fittings and label ..... B ................. Require repair.
Undercharged ............ B ................. Require repair.
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REFRIGERANT OIL
REFRIGERANT OIL INSPECTION \
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Condition Code Procedure
Contaminated ............ 1 .. Require repair or replacement.
Overfilled .............. B ................. Require repair.
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A/C -H EA TE R S YSTE M
1999 D odge P ic ku p R 1500
1999 MANUAL A/C-HEATER SYSTEMS
CHRYSLER
Dakota, Durango & Ram Pickup
SPECIFICATIONS
SPECIFICATIONS \
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Application Specification
Compressor Type .............................. Sanden SD-7H15 7-Cyl.
Compressor Belt Tension ........................................ ( 1)
Refrigerant (R-134a) Capacity
With Rear A/C Unit ....................................... 30 ozs.
Without Rear A/C Unit .................................... 28 ozs.
System Oil Capacity
Dakota & Ram Pickup ................................. ( 2) 8.1 ozs.
Durango
With Rear A/C Unit ................................. ( 2) 8.0 ozs.
Without Rear A/C Unit .............................. ( 2) 5.5 ozs.
System Operating Pressures ( 3)
High Side ......................... 190-220 psi (13.4-15.5 kg/cm
)
Low Side .............................. 32-40 psi (2.2-2.8 kg/cm)
( 1) - Dynamic tensioner automatically adjusts belt. Tension is okay if
indicator is within marked limits on belt tensioner.
( 2) - Use SP-20 PAG refrigerant oil.
( 3) - Measured at ambient air temperature of 80
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WARNING: To avoid injury from accidental air bag deployment, read and
carefully follow all SERVICE PRECAUTIONS and DISABLING &
ACTIVATING AIR BAG SYSTEM procedures in AIR BAG SYSTEM SAFETY
article.
CAUTION: When battery is disconnected, radio will go into anti-theft
protection mode. Obtain radio anti-theft protection code from
owner prior to servicing vehicle.
DESCRIPTION
These systems are a blend-air type. Outside air enters
through a cowl at base of the windshield and flows through a plenum
chamber into blower housing. Airflow velocity is controlled by blower
speed selector switch. Air flows across evaporator and is directed by
a blend-air door to go either through or by-pass the heater core.
On Dakota and Durango, temperature control cable operates
blend-air door and allows immediate control of outlet air temperature.
It also controls operation of recirculation door. On Ram Pickup,
temperature is regulated by a blend-air servo motor controlled from
A/C-heater control panel rotary temperature dial. On all models, mode
selector switch controls vacuum-operated doors to direct conditioned
air to selected outlets.
Durango may also be equipped with an optional rear A/C unit.
The rear A/C unit consists of a blower motor and evaporator. It will
only operate while the front A/C is on. The optional rear A/C-heater
unit is controlled using fan and temperature switches.