key DODGE RAM 1999 Service Repair Manual

"I" ABBREVIATION TABLE (con’t)
ABBREVIATION DEFINITION ISA Idle Speed Actuator ISC Idle Speed Control ISS Idle Stop Solenoid ITS Idle Tracking Switch IVSV Idle Vacuum Switching Valve Ign. Ignition In. Inches Inj. Injector

"J" ABBREVIATION TABLE

"J" ABBREVIATION TABLE
ABBREVIATION DEFINITION J/B Junction Block

"K" ABBREVIATION TABLE

"K" ABBREVIATION TABLE
ABBREVIATION DEFINITION k/ohms 1000 ohms (kilo as in k/ohms) kg Kilograms (weight) kg/cm Kilograms Per Square Centimeter KAM Keep Alive Memory KAPWR Keep Alive Power KM/H Kilometers Per Hour KOEO Key On Engine Off KOER Key On Engine Running KS Knock Sensor

"L" ABBREVIATION TABLE

"L" ABBREVIATION TABLE
ABBREVIATION DEFINITION L Liter(s) L/D Light Duty LCD Liquid Crystal Display LED Light Emitting Diode LH Left Hand LOS Limited Operation Strategy LT BLU Light Blue LT GRN Light Green LUS Lock-Up Solenoid Lbs. Pounds Lt(s). Light(s) Lugg. Luggage

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.

4) If bearing is to be removed, remove forcing screw from
puller. With puller still engaged in pulley slots, invert assembly
onto a solid flat surface. Use a hammer and Bearing Remover (J-9398-A)\
to drive bearing from pulley. See Fig. 2 or 3.
NOTE: It is not necessary to remove staking in front of bearing
before removing bearing.
5) Disconnect clutch coil lead. Scribe marks on compressor
and clutch coil for installation reference. Remove clutch coil using
Puller Adapter (J-33023-A) and 2-jaw puller.
Installation
1) Align reference marks made during removal. Using Puller
Adapter (J-33024) and Puller Bar (J-8433-1), press clutch coil onto
compressor. Ensure clutch coil and installer stay lined up during
installation. Using a 1/8" punch, stake clutch coil inner ring in 3
places, 120 degrees apart. Stake size should be 1/2 the area of punch
tip and 0.010-0.015" (0.28-0.38 mm) deep.
NOTE: To ensure proper bearing clearance, it is necessary to remove
old stake metal before installing new bearing.
2) To install pulley bearing, place pulley on Support (J-
21352-A). DO NOT support pulley rim on flat surface, or pulley will be
damaged. Install bearing in pulley using hammer, Bearing Installer (J-
9481-A) and Handle (J-29886).
3) With pulley on support, use Bearing Staking Guide (J-
33019-1) and Bearing Staking Pin (J-33019-2) to stake pulley in 3
places, 120 degrees apart. Reposition pulley on support to ensure full
support under staking pin. Metal stake should be similar to original
stake (down to, but not touching bearing). Position pulley on
compressor.
4) Place Bearing Installer (J-33017) and Puller Guide (J-
33023-A) over inner race of bearing. Using puller, press pulley onto
compressor. Install snap ring. Install shaft key in clutch plate,
allowing key to protrude about 1/8" from rear of clutch plate.
5) Install clutch plate on compressor shaft. Using clutch
plate remover/installer, press clutch plate onto compressor. Ensure
shaft key is still in keyway before installing clutch assembly.
6) Air gap between friction surfaces for HD6/HT6 and HD6/HR-
6HE compressor is 0.020-0.030" (0.51-0.76 mm); for V5 and V7
compressor air gap is 0.015-0.020" (0.38-0.51 mm). On V5 and V7
compressor, using clutch plate spanner, install compressor shaft nut.
Tighten shaft nut to 12.5 ft. lbs. (17 N.m). Check components for
proper rotation.

Removal
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove compressor. Drain, measure and
discard refrigerant oil from compressor. Remove clutch plate, clutch
pulley, shims, and clutch coil. See CLUTCH ASSEMBLY. See Fig. 4.
2) Using a flat-blade screwdriver, remove felt ring and felt
washer from front housing. Remove shaft key and shaft seal snap ring.
Insert Compressor Shaft Seal Remover/Installer (J-33942-B) into seal.
Turn seal remover/installer until contact with notches in seal is
made. Remove shaft seal.
Installation
1) Install Compressor Shaft Seal Protector (J-34614) onto
compressor shaft. Lubricate NEW shaft seal with refrigerant oil. DO
NOT touch sealing surfaces. Engage seal remover/installer into seal
notches and install seal onto compressor shaft. Remove seal protector
and remover/installer.
2) Install seal snap ring. Install felt washer and felt ring.
Install clutch plate, clutch pulley, shims, and clutch coil. See
CLUTCH ASSEMBLY. See Fig. 4. After repairs, add refrigerant oil to
compressor equal to amount drained. To complete installation, reverse
removal procedure. Perform leak test.
Fig. 4: Compressor Components (Nippondenso 10-Cylinder)
Courtesy of general motors corp.
NIPPONDENSO 10PA17/10PA17C 10-CYLINDER

CLUTCH ASSEMBLY
Removal (Except Grand Cherokee)
Remove compressor shaft bolt. Remove clutch plate and shims.
Tighten a 10-mm bolt into clutch hub bolt hole to remove clutch hub
and shims. Remove snap ring, and remove rotor and pulley assembly.
Remove snap ring, and disconnect clutch coil lead. Remove clutch coil.
Installation
1) Install clutch coil so pin in back of coil aligns with
hole in front compressor housing. Connect clutch coil lead. Install
snap ring with bevel side facing outward. Ensure snap ring is properly
seated in groove. Install rotor and pulley assembly. Install shims and
snap ring. Install clutch hub.
2) Install dial indicator at front of clutch hub to measure
clutch hub air gap. Using battery voltage, energize clutch coil.
Proper air gap is 0.014-0.026" (0.35-0.65 mm). Add or remove shims to
obtain correct air gap. Install compressor shaft bolt. On Concord and
Intrepid, tighten compressor shaft bolt to 11-15 ft. lbs. (15-20 N.m).\
On all other models, tighten compressor shaft bolt to 10 ft. lbs. (14
N.m).
NOTE: On Grand Cherokee, compressor clutch can be serviced in
vehicle without discharging A/C system.
Removal (Grand Cherokee)
Disconnect and isolate negative battery cable. Remove
serpentine drive belt. Remove compressor shaft bolt. Using a plastic
mallet, tap clutch plate to loosen from compressor shaft. Remove
clutch plate, shaft key and shims. See Fig. 5. Remove snap ring, and
remove pulley assembly. Remove snap ring, and disconnect clutch coil
lead. Remove clutch coil.
Installation
1) Install clutch coil so pin in back of coil aligns with
hole in front compressor housing. Connect clutch coil lead. Install
snap ring with bevel side facing outward. Ensure snap ring is properly
seated in groove. Align snap ring eyelets to the left or right of
clutch coil pin. Install rotor and pulley assembly. Install shims and
snap ring. Install clutch hub.
2) Hold clutch plate tight against shims and measure air gap
between clutch plate and pulley face. Air gap should be 0.014-0.026"
(0.35-0.65 mm). Add or remove shims as necessary. Install compressor
shaft bolt. Tighten compressor shaft bolt to 115 INCH lbs. (13 N.m).
To complete installation, reverse removal procedure.
3) After completing compressor clutch installation, start
engine. Set A/C-heater control to recirculated air mode and high
blower motor speed. Set engine speed to 1500-2000 RPM. Cycle
compressor on for 5 seconds and off for 5 seconds, about 20 times to
break-in clutch.
SHAFT SEAL
NOTE: Shaft seal replacement procedure is for 10PA17C compressor.
Shaft seal replacement procedure for 10PA17 compressor is not
available.
Removal
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove A/C compressor. Drain oil from
compressor, and measure amount drained. Remove clutch hub, shims,
rotor and pulley assembly, and clutch coil. See CLUTCH ASSEMBLY. See

Ford Motor Co. (Taurus 3.4L SHO)
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove A/C compressor. Drain and measure
oil from compressor.
2) Remove pulley assembly. Using Spanner Wrench (T81P-19623-
MH), remove shaft nut and lock washer. Using a steering wheel puller,
remove clutch plate, shaft key and shim. Remove snap ring and pulley
assembly, by hand. If necessary, use a 3-jaw puller to remove pulley
assembly. Remove clutch coil wire from retaining brace on compressor.
Remove snap ring and clutch coil. See Fig. 1.
Installation
1) Install clutch coil. Ensure hole on back of clutch coil is
aligned with pin on compressor head. Install snap ring with beveled
side facing outward. Install clutch coil wire into retaining brace.
2) Slip pulley assembly onto compressor shaft and install
snap ring with beveled side facing outward. Install shim and shaft
key. Align clutch plate with shaft key and install clutch plate. Use
Hub Driven Plate Replacer (T80L-19703-F), if necessary. Using spanner
wrench, install lock washer and shaft nut. Tighten shaft nut to 10-14
ft. lbs. (14-19 N.m).
3) Using a feeler gauge, measure air gap between clutch plate
and pulley assembly at 3 equally spaced locations. Rotate pulley 180
degrees and measure air gap at 3 locations again. Air gap should be 0.
016-0.027" (0.41-0.69 mm). If air gap is not within specification, add\
or remove shims to obtain correct air gap.
4) Add correct amount of refrigerant oil to compressor and
install compressor. See COMPRESSOR REFRIGERANT OIL CHECKING. Evacuate
and charge A/C system. Perform leak test.
SANDEN MSC90-C SCROLL
CLUTCH ASSEMBLY
Removal
1) Discharge A/C system, using approved refrigerant
recovery/recycling equipment. Remove compressor. Drain oil from
compressor, and measure amount drained.
2) Remove pulley assembly. Using Spanner (MB991367) and Pins\
(MB991386), remove shaft nut. Remove clutch plate, snap ring and rotor\
assembly. Remove snap ring and clutch coil. See Fig. 6.
Installation
1) Install clutch coil. Ensure projection on back of clutch
coil is aligned with pin hole in compressor body. Install snap ring so
that tapered surface is facing outward.
2) Install rotor assembly and snap ring. Align match mark of
clutch plate with match mark of compressor shaft spline and install
clutch plate. Using spanner and pins, install shaft nut.
3) Using a feeler gauge, check air gap between clutch plate
and rotor assembly at more than one place. Air gap should be 0.016-0.
024" (0.40-0.60 mm). If air gap is not within specification, add or
remove shims as necessary. Install pulley assembly.
4) Add same amount of refrigerant oil to compressor as was
drained from it. Install A/C compressor. Evacuate and charge A/C
system. Perform leak test.

Fig. 6: Compressor Components (Sanden MSC90-C Scroll)
Courtesy of chrysler corp.
SANDEN SD-7H15 7-CYLINDER
NOTE: On Cherokee, Dakota, Durango, Ram Pickup and Wrangler,
compressor clutch can be serviced in vehicle, without
discharging A/C system.
CLUTCH ASSEMBLY
Removal (Cherokee, Dakota, Durango, Ram Pickup & Wrangler)
1) Disconnect and isolate negative battery cable. Remove
serpentine drive belt. Disconnect clutch coil harness connector.
Without disconnecting refrigerant lines, remove A/C compressor from
mounting bracket. Support compressor in engine compartment.
2) Using spanner wrench, hold clutch plate and remove
compressor shaft nut. See Fig. 1. Using a steering wheel puller,
remove clutch plate, compressor shaft key and shims. Remove external
front housing snap ring.
3) Install jaws of Rotor Puller (C-6141-1) into pulley snap
ring groove. Install Shaft Protector (C-6141-2) over compressor shaft.\
Install puller flange plate on jaws. Install Puller Through-Bolts (C-
6461) through puller flange plate into jaws and hand tighten. Tighten
pulley center bolt clockwise and remove pulley from compressor.
4) Remove clutch coil wire harness retainer from compressor
housing. Remove clutch coil snap ring and clutch coil.

Installation (Cherokee & Wrangler)
1) Install clutch coil and clutch coil snap ring. Install
clutch coil wire harness to compressor housing. Align pulley and
bearing assembly on front compressor housing hub. Using Installer (C-
6871), press pulley and bearing assembly onto compressor housing hub.
Thread installer on compressor shaft and tighten nut until pulley
assembly is seated.
2) Install external front snap ring with beveled side facing
outward. Ensure snap ring is properly seated. Install compressor shaft
key and original shims. Using a plastic mallet and Driver (C-6463),
install clutch plate on compressor shaft. Tighten compressor shaft nut
to 10 ft. lbs. (14 N.m).
3) Using feeler gauge, measure air gap between clutch plate
and pulley assembly in several areas. Air gap should be 0.016-0.031"
(0.41-0.79 mm). If air gap is not within specification, adjust shim
thickness as necessary. If air gap is not consistent around clutch
plate, lightly pry up or tap down on clutch plate to make corrections.
To complete installation, reverse removal procedure.
Installation (Dakota, Durango & Ram Pickup)
1) Install clutch coil and clutch coil snap ring. Install
clutch coil wire harness to compressor housing. Align pulley and
bearing assembly on front compressor housing hub.
2) Install Handle (6464) and Driver (6143) into pulley
assembly bearing cavity. Ensure outer edge of driver rests firmly on
inner race of bearing. Using hammer, install pulley and bearing
assembly. While tapping on handle, guide pulley and bearing assembly
to prevent binding. Ensure pulley assembly bottoms against compressor
housing. Install external snap ring.
3) Install original shim(s) and compressor shaft key. Use a
hammer and Shaft Protector (6141-2) to install clutch plate on
compressor shaft. Ensure clutch plate bottoms out on clutch shims.
Replace compressor shaft nut and tighten compressor shaft nut to 10
ft. lbs. (14 N.m).
4) Measure air gap between clutch plate and pulley assembly
in several areas. Air gap should be 0.016-0.031" (0.41-0.79 mm). If
air gap is not within specification, adjust shim thickness as
necessary. If air gap is not consistent around clutch plate, lightly
pry up or tap down on clutch plate to make corrections. To complete
installation, reverse removal procedure. Ensure A/C system operates
properly.
5) After completing compressor clutch installation, start
engine. Set A/C-heater control to recirculated air mode and high
blower motor speed. Set engine speed to 1500-2000 RPM. Cycle
compressor on for 5 seconds and off for 5 seconds, about 20 times to
break-in clutch.
Removal (Ford "F" Series Super Duty Pickup)
1) Disconnect and isolate negative battery cable. Discharge
A/C system, using approved refrigerant recovery/recycling equipment.
Disconnect clutch coil harness connector and remove compressor. Drain
oil from compressor, and measure amount drained.
2) Using Spanner Wrench (T70P-4067-A), hold clutch plate and\
remove compressor shaft nut. See Fig. 1. If necessary, use a steering
wheel puller to remove clutch plate and shim(s).
3) Using a flat-blade screwdriver, remove pulley assembly
bearing dust cover. Remove compressor shaft key and internal bearing
snap ring. Remove external front housing snap ring.
4) Install jaws of rotor puller into pulley assembly internal
bearing snap ring groove. Install shaft protector over compressor
shaft. Install puller flange plate on jaws. Install 2 puller bolts
through puller flange plate into jaws and hand tighten. Tighten pulley
center bolt clockwise and remove pulley assembly from compressor.

5) Remove clutch coil wire harness retainer from compressor
housing. Remove clutch coil snap ring and clutch coil.
Installation (Ford "F" Series Super Duty Pickup)
1) Install clutch coil and clutch coil snap ring. Install
clutch coil wire harness to compressor housing. Align pulley and
bearing assembly on front compressor housing hub.
2) Install pulley installer handle and driver into pulley
assembly bearing cavity. Ensure outer edge of driver rests firmly on
inner race of bearing. Using hammer, install pulley and bearing
assembly. While tapping on handle, guide pulley and bearing assembly
to prevent binding. Ensure pulley assembly bottoms against compressor
housing.
3) Install internal bearing and external front housing snap
rings. Install original shim(s) and compressor shaft key. Using a
hammer and shaft protector, install clutch plate on compressor shaft.
Ensure clutch plate bottoms out on clutch shims. Replace compressor
shaft nut and tighten compressor shaft nut to 25-30 ft. lbs. (34-41 N.
m).
4) Measure air gap between clutch plate and pulley assembly
in 3 locations spaced equally around pulley. Rotate clutch pulley 180
degrees and check air gap as specified. Air gap should be 0.016-0.031"
(0.41-0.79 mm). If air gap is not within specification, adjust shim
thickness as necessary. To complete installation, reverse removal
procedure. Evacuate, charge, and leak test A/C system.
SANDEN TRS-90 & TR-105 SCROLL
CLUTCH ASSEMBLY
Removal
1) Without discharging A/C system, remove compressor from
mount. Install two 6-mm bolts in holes of clutch plate. Use 6-mm bolts
and 2 box-end wrenches to hold clutch plate while removing nut from
end of compressor shaft.
2) Remove clutch plate and shims. Using a plastic hammer, tap
clutch plate to loosen from compressor (if necessary). DO NOT pry
between clutch plate and pulley to remove clutch plate.
3) Remove pulley assembly snap ring. Remove pulley assembly.
Disconnect clutch coil lead. Scribe marks on clutch coil and
compressor for installation reference. Remove snap ring and clutch
coil.
NOTE: Rotor/pulley assembly and clutch plate are a matched pair and
should be replaced together.
Installation
1) Install clutch coil on compressor so locating pin engages
locating indentation. Install snap ring with beveled side away from
compressor. Secure clutch coil lead to compressor front cover and
connect lead to thermal limiter switch.
2) Install pulley assembly. Install snap ring with beveled
side away from compressor. If reusing original clutch plate and
pulley, old shims can be used.
3) If new components are used, install several shims so shim
pack thickness is 0.10" (2.5 mm). Align machined match marks and
install clutch plate and hold it tightly against shims.
4) Measure air gap between clutch plate and pulley surface.
Air gap should be 0.013-0.025" (0.33-0.64 mm). Adjust shim thickness
as necessary. On TRS-90, tighten compressor shaft nut to 13 ft. lbs.
(18 N.m). On TR-105, tighten compressor shaft nut to 10 ft. lbs. (14
N.m).

Procedure Cylinders No.
Step 1 (1)
Intake Valve ............................................ 1, 2 & 4
Exhaust Valve ........................................... 1, 3 & 5
Step 2 ( 2)
Intake Valve ............................................ 3, 5 & 6
Exhaust Valve ........................................... 2, 4 & 6
( 1) - Perform STEP 1. See Fig. 2.
( 2) - Rotate engine clockwise (viewed from front of engine) one full
revolution from TDC on cylinder No. 1 (STEP 1) and align
reference marks. Perform STEP 2. See Fig. 2.









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VALVE CLEARANCE SPECIFICATIONS ( 1)








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Application In. (mm)\
Intake Valve ............................. ( 2) .006-.015 (.152-.381)
Exhaust Valve ............................ ( 3) .015-.030 (.381-.762)
( 1) - Adjust valve clearance with engine temperature less than
140
F (60C).
( 2) - Set to .010" (.254 mm) if adjustment is necessary.
( 3) - Set to .020" (.508 mm) if adjustment is necessary.









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3) Rotate engine clockwise (viewed from front of engine) one\
full revolution from TDC on cylinder No. 1 and align reference marks.
Check valve clearance on proper valves. Perform STEP 2. See Fig. 2.
See VALVE CLEARANCE ADJUSTING SEQUENCE table. Ensure valve clearance
is within specification. See VALVE CLEARANCE SPECIFICATIONS table. If
valve clearance is within specification, go to next step. If valve
clearance is not within specification, loosen rocker lever adjusting
screw lock nut, and adjust valve clearance by rotating rocker lever
adjusting screw. Tighten rocker lever adjusting screw lock nut to
specification. See TORQUE SPECIFICATIONS. Go to next step.
4) Install valve cover, fuel pump access cover and battery
cables.
FUEL INJECTION PUMP TIMING
CHECKING FUEL INJECTION PUMP TIMING
NOTE: With Bosch VP 44 pump, no mechanical adjustments are
necessary. All timing and fuel adjustments are performed by
Engine Control Module (ECM). If a FTC indicating engine sync
error or static timing error has been set, perform following
adjustment. If FTC sets after installing a new pump, pump
keyway has probably been installed backward.
CAUTION: DO NOT allow nut and washer to fall inside front cover.
1) Remove fuel pump access cover, shaft nut and washer.
Ensure keyway aligning pump shaft to pump gear has not slipped. If
keyway has slipped, repair as necessary.
2) Remove timing gear cover. See REMOVAL, OVERHAUL &
INSTALLATION - TRUCKS - DIESEL article. Using a T-type puller, remove
injection pump gear from shaft. Ensure key has been installed in
keyway with arrow pointing to rear of pump. Pump timing is calibrated
to pump keyway. Ensure 3-digit number on key matches number on pump