
(4) Install the bolts attaching the seat cushion
frame to the mounting brackets. Tighten bolts to 25
N´m (18 ft. lbs.) torque.
(5) Install the seat back. (Refer to 23 - BODY/
SEATS/SEAT BACK - BENCH SEAT - INSTALLA-
TION) or (Refer to 23 - BODY/SEATS/SEAT BACK -
SPLIT BENCH - INSTALLATION)
(6) Install the seat. (Refer to 23 - BODY/SEATS/
SEAT - BENCH SEAT - INSTALLATION) or (Refer
to 23 - BODY/SEATS/SEAT - SPLIT BENCH -
INSTALLATION)
SEAT CUSHION COVER
REMOVAL
(1) Remove seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - REMOVAL)
(2) Position seat cushion on a suitable work sur-
face with frame side up.
(3) Remove seat track. (Refer to 23 - BODY/
SEATS/SEAT TRACK - REMOVAL)
(4) Remove left and right side J-Straps.
(5) Remove rear J-Strap.
(6) Remove front J-Strap.(7) Roll trim cover off of front and rear corners and
separate from foam cushion.
INSTALLATION
(1) Position cushion cover on cushion and roll
cover over front and rear corners.
(2) Secure front J-Strap (Fig. 17).
(3) Secure rear J-Strap.
(4) Secure left and right side J-Straps.
(5) Verify stitching lines are straight, correct as
necessary.
(6) Install the seat track. (Refer to 23 - BODY/
SEATS/SEAT TRACK - INSTALLATION)
(7) Install seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - INSTALLATION)
SEAT CUSHION COVER -
SPLIT BENCH
REMOVAL
STANDARD CAB
(1) Remove seat tracks. (Refer to 23 - BODY/
SEATS/SEAT TRACK - SPLIT BENCH - REMOVAL)
(2) Remove seat back. (Refer to 23 - BODY/SEATS/
SEAT BACK - SPLIT BENCH - REMOVAL)
(3) Remove left and right J-straps.
(4) Position seat cushion on a suitable work sur-
face with frame side up.
(5) Remove rear J-strap.
(6) Remove front J-strap.
(7) Roll cushion cover off of foam cushion.
Fig. 16 Seat Cushion Mounting Frame
1 - SEAT CUSHION FRAME
2 - MOUNTING BRACKET
Fig. 17 J-Strap Installation
1 - SEAT CUSHION
2 - JÐSTRAPS
BR/BESEATS 23 - 139
SEAT CUSHION (Continued)

QUAD CAB
(1) Remove seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - REMOVAL)
(2) Disengage the J-straps attaching the cushion
cover to the cushion frame (Fig. 18).
(3) Peel the cushion cover and disengage the hook
and loop fasteners (Fig. 19).
(4) Disengage the electrical connectors for the
heated seat grid, if equipped.
(5) Disengage the hog rings attaching the cushion
cover to the cushion frame (Fig. 20).
(6) Separate the cover from the cushion.
INSTALLATION
STANDARD CAB
(1) Position cushion cover on cushion and roll
cover over front and rear corners. Verify stitching
lines are straight, correct as necessary.
(2) Pull front J-strap up, align cover to foam
notches and secure front J-strap to frame (Fig. 21).
(3) Install seat backs. (Refer to 23 - BODY/SEATS/
SEAT BACK - SPLIT BENCH - INSTALLATION)
(4) Pull the left J-strap up and secure to frame.
Verify cover is straight.
(5) Pull the right side J-strap up and secure to
frame.
Fig. 21 J-Strap Installation
1 - JÐSTRAP
2 - FRAME
Fig. 18 Seat Cushion J-Straps
1 - SEAT CUSHION
2 - JÐSTRAPS
Fig. 19 Seat Cushion Cover Hook and Loop
1 - CUSHION COVER
2 - HOOK AND LOOP FASTENERS
3 - SEAT CUSHION
Fig. 20 Seat Cushion Cover Hog Rings
1 - CUSHION COVER
2 - HOG RINGS
3 - CUSHION
23 - 140 SEATSBR/BE
SEAT CUSHION COVER - SPLIT BENCH (Continued)

(6) Install seat tracks. (Refer to 23 - BODY/
SEATS/SEAT TRACK - SPLIT BENCH - INSTALLA-
TION)
QUAD CAB
(1) Position the cover on the cushion.
(2) Engage the hog rings attaching the cushion
cover to the cushion frame.
(3) Engage the hook and loop fasteners.
(4) Engage the electrical connectors for the heated
seat grid, if equipped.
(5) Engage the J-straps attaching the cushion
cover to the cushion frame.
(6) Install seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - INSTALLATION)
SEAT RISER
REMOVAL
(1) Disconnect seat harness connector.
(2) Remove the seat from the vehicle. (Refer to 23 -
BODY/SEATS/SEAT - BENCH SEAT - REMOVAL) or
(Refer to 23 - BODY/SEATS/SEAT - SPLIT BENCH -
REMOVAL)
(3) Remove the bolts attaching the seat track
adjuster to the seat riser (Fig. 22).
(4) Separate the seat track adjuster from the riser.
INSTALLATION
(1) Position the seat track adjuster on the riser.
(2) Install the bolts attaching the seat track
adjuster to the seat riser. Tighten front bolts to 17
N´m (12 ft. lbs.) torque. Tighten rear inboard bolt to
22 N´m (16 ft. lbs.) torque. Tighten rear outboard bolt
to 45 N´m (33 ft. lbs.) torque.
(3) Install the seat in the vehicle. (Refer to 23 -
BODY/SEATS/SEAT - BENCH SEAT - INSTALLA-TION) or (Refer to 23 - BODY/SEATS/SEAT - SPLIT
BENCH - INSTALLATION)
(4) Connect seat harness connector.
SEAT TRACK
REMOVAL
(1) Remove seat from vehicle. (Refer to 23 - BODY/
SEATS/SEAT - BENCH SEAT - REMOVAL)
(2) Remove inboard seat belt buckles. (Refer to 8 -
ELECTRICAL/RESTRAINTS/SEAT BELT BUCKLE -
REMOVAL)
(3) Remove bolts attaching seat track to seat cush-
ion frame (Fig. 23).
(4) Separate seat track from seat cushion frame.
INSTALLATION
(1) Position seat track on seat cushion frame.
(2) Ensure seat track and slider bar are aligned.
(3) Install rear seat track bolts. Tighten seat track
bolts to 25 N´m (18 ft.lbs.) torque.
(4) Install inboard seat belt buckles. (Refer to 8 -
ELECTRICAL/RESTRAINTS/SEAT BELT BUCKLE -
INSTALLATION)
(5) Pull seat release and move track rearward.
(6) Install front seat track bolts. Tighten seat
track bolts to 25 N´m (18 ft.lbs.) torque.
(7) Align slider bars and install bolts. Tighten
slider bar bolts to 10.0 N´m (7 ft.lbs.) torque.
(8) Install seat. (Refer to 23 - BODY/SEATS/SEAT
- BENCH SEAT - INSTALLATION)
Fig. 22 Seat Riser
1 - SEAT TRACK ADJUSTER
2 - RISER
Fig. 23 Seat Track Removal
1 - SEAT TRACK
2 - SLIDER BAR
BR/BESEATS 23 - 141
SEAT CUSHION COVER - SPLIT BENCH (Continued)

SEAT TRACK - SPLIT BENCH
REMOVAL
(1) Remove seat from vehicle. (Refer to 23 -
BODY/SEATS/SEAT - SPLIT BENCH - REMOVAL)
(2) Remove bolts from crossbrace to seat cushion
frame and power track (Fig. 24).
(3) Remove bolts attaching center seat to seat
frame and remove center seat.
(4) Remove bolts attaching seat track to seat
frame (Fig. 25)and (Fig. 26).
INSTALLATION
(1) Install bolts attaching seat track to seat frame.
Tighten bolts to 25 N´m (18 ft. lbs.) torque.(2) Install bolts into crossbrace and seat cushion
frame to power track and torque to 10N´m (8.5±11.5
ft. lbs.).
(3) Install bolts attaching center seat to seat
frame. Tighten bolts to 25 N´m (18 ft. lbs.) torque.
(4) Install seat. (Refer to 23 - BODY/SEATS/SEAT
- SPLIT BENCH - INSTALLATION)
(5) Power adjuster on power seat must be cycled in
all 6 functions to ensure the adjuster is working
properly.
EASY ENTRY SEAT TRACK
REMOVAL
(1) Remove front passenger seat. (Refer to 23 -
BODY/SEATS/SEAT - SPLIT BENCH - REMOVAL)
(2) Remove recliner handle.
(3) Remove side shield.
(4) Disengage seat track latch release cables.
(5) Remove bolts attaching seat adjuster track to
easy entry seat track. (Fig. 27).
(6) Remove inboard seat back pivot bolt.
(7) Disengage latch release cable from pulley.
(8) Separate seat adjuster track from seat back.
INSTALLATION
(1) Position inboard easy entry seat track at seat
back.
(2) Engage latch release cable around pulley.
(3) Install inboard seat back pivot bolt. Tighten
bolt to 50 N´m (36 ft. lbs.) torque.
(4) Install screws attaching seat adjuster track to
seat cushion frame. Tighten screws to 25 N´m (18 ft.
lbs.) torque.
Fig. 24 Cross Brace
1 - CROSS BRACE
2 - SEAT TRACK
Fig. 25 Power Seat Track
1 - SEAT SWITCH
Fig. 26 Seat Track Removal/Installation
1 - RELEASE HANDLE
2 - SEAT TRACK
23 - 142 SEATSBR/BE

(5) Install bolts attaching easy entry seat track to
seat adjuster track. Tighten front bolts to 17 N´m (12
ft. lbs.) torque. Tighten rear inboard bolts to 21 N´m
(16 ft. lbs.) torque. Tighten rear outboard bolts to 45
N´m (33 ft. lbs.) torque.
(6) Engage seat track latch release cables.
(7) Install front passenger seat. (Refer to 23 -
BODY/SEATS/SEAT - SPLIT BENCH - INSTALLA-
TION)
(8) Install side shield.
(9) Install recliner handle.
SEAT TRACK ADJUSTER
REMOVAL
(1) Remove the seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - REMOVAL)
(2) Unwind recliner spring from seat back. Use
care not to lose upper spring seat.
WARNING: DO NOT PULL THE RECLINER CABLE
OR THE RECLINER HANDLE. THE RECLINER LEAD
SCREW IS SPRING LOADED AND WILL EJECT IFEITHER THE HANDLE , CABLE, OR TOWEL BAR IS
PULLED BEFORE THE LEAD SCREW IS REMOVED.
(3) Remove right and left risers.
INSTALLATION
(1) Install the left and right risers.
(2) Install the recliner lead screw and spring in
the seat back.
(3) Install seat cushion. (Refer to 23 - BODY/
SEATS/SEAT CUSHION - INSTALLATION)
STANCHION COVER
REMOVAL
(1) Remove push-in fasteners attaching stanchion
cover to seat stanchion (Fig. 28).
(2) Separate cover from seat stanchion.
INSTALLATION
(1) Position cover on seat stanchion.
(2) Install push-in fasteners attaching stanchion
cover to seat stanchion (Fig. 28).
Fig. 27 EASY ENTRY SEAT TRACK
1 - SEAT ADJUSTER TRACK
2 - RISER
3 - EASY ENTRY SEAT TRACK
4 - SEAT CUSHION
Fig. 28 Stanchion Cover
1 - PUSHÐIN FASTENER
2 - SEAT STANCHION
3 - FLOOR PAN
4 - STANCHION COVER
BR/BESEATS 23 - 143
EASY ENTRY SEAT TRACK (Continued)

REAR SEAT
REMOVAL
(1) Move front seat track to full forward position.
(2) Turn release handle on underside of rear seat
(Fig. 29) to disengage seat cushion and move seat to
the stowed position.
(3) Remove side support bracket screws and lift
seat to disengage from cab (Fig. 30).
INSTALLATION
(1) Position seat in vehicle.
(2) Align seatback hooks with loops on cab rear
panel (Fig. 31).
(3) Align side support alignment tabs, and lower
seat into place.
(4) Install side support bracket screws. Tighten the
screws to 28 N´m (250 in-lbs) torque.
(5) Turn release handle to disengage seat from
stowed position and push seat cushion downward to
lock into place.
Fig. 29 Rear Seat Release Handle
1 - SEAT CUSHION
2 - RELEASE HANDLE
3 - ALIGNMENT TAB
Fig. 30 Rear Seat Removal/Installation
1 - REAR SEAT
2 - BUMPER
3-TAB
Fig. 31 Rear Seat Removal/Installation
1 - REAR SEAT
2 - BUMPER
3-TAB
23 - 144 SEATSBR/BE

STANDARD PROCEDURE - REFRIGERANT
SYSTEM CHARGE
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - WARNING) (Refer to 24 - HEATING &
AIR CONDITIONING/PLUMBING - CAUTION)
After the refrigerant system has been tested for
leaks and evacuated, a refrigerant charge can be
injected into the system. (Refer to 24 - HEATING &
AIR CONDITIONING/PLUMBING - SPECIFICA-
TIONS - CHARGE CAPACITY)
A R-134a refrigerant recovery/recycling/charging
station that meets SAE Standard J2210 must be
used to charge the refrigerant system with R-134a
refrigerant. Refer to the operating instructions sup-
plied by the equipment manufacturer for proper care
and use of this equipment.
SPECIFICATIONS
SPECIFICATIONS
The R-134a refrigerant system charge capacity for
this vehicle is: 0.907 kilograms (32 ounces).
A/C COMPRESSOR
DESCRIPTION - A/C COMPRESSOR
The air conditioning system uses a Sanden
SD7H15 seven cylinder, reciprocating wobble plate-
type compressor on all models. This compressor has a
fixed displacement of 150 cubic centimeters (9.375
cubic inches), and has both the suction and discharge
ports located on the cylinder head. A label identifying
the use of R-134a refrigerant is located on the com-
pressor.
DESCRIPTION - HIGH PRESSURE RELIEF
VALVE
A high pressure relief valve is located on the com-
pressor cylinder head, which is at the rear of the
compressor. This mechanical valve is designed to
vent refrigerant from the system to protect against
damage to the compressor and other system compo-
nents, caused by condenser air flow restriction or an
overcharge of refrigerant.
OPERATION - A/C COMPRESSOR
The compressor is driven by the engine through an
electric clutch, drive pulley and belt arrangement.
The compressor is lubricated by refrigerant oil that iscirculated throughout the refrigerant system with the
refrigerant.
The compressor draws in low-pressure refrigerant
vapor from the evaporator through its suction port. It
then compresses the refrigerant into a high-pressure,
high-temperature refrigerant vapor, which is then
pumped to the condenser through the compressor dis-
charge port.
The compressor cannot be repaired. If faulty or
damaged, the entire compressor assembly must be
replaced. The compressor clutch, pulley and clutch
coil are available for service.
OPERATION - HIGH PRESSURE RELIEF VALVE
The high pressure relief valve vents the system
when a discharge pressure of 3445 to 4135 kPa (500
to 600 psi) or above is reached. The valve closes with
a minimum discharge pressure of 2756 kPa (400 psi)
is reached.
The high pressure relief valve vents only enough
refrigerant to reduce the system pressure, and then
re-seats itself. The majority of the refrigerant is con-
served in the system. If the valve vents refrigerant, it
does not mean the valve is faulty.
The high pressure relief valve is a factory-cali-
brated unit. The valve cannot be adjusted or
repaired, and must not be removed or otherwise dis-
turbed. The valve is only serviced as a part of the
compressor assembly.
DIAGNOSIS AND TESTING - A/C COMPRESSOR
When investigating an air conditioning related
noise, you must first know the conditions under
which the noise occurs. These conditions include:
weather, vehicle speed, transmission in gear or neu-
tral, engine speed, engine temperature, and any
other special conditions. Noises that develop during
air conditioning operation can often be misleading.
For example: What sounds like a failed front bearing
or connecting rod, may be caused by loose bolts, nuts,
mounting brackets, or a loose compressor clutch
assembly.
Drive belts are speed sensitive. At different engine
speeds and depending upon belt tension, belts can
develop noises that are mistaken for a compressor
noise. Improper belt tension can cause a misleading
noise when the compressor clutch is engaged, which
may not occur when the compressor clutch is disen-
gaged. Check the serpentine drive belt condition and
tension as described in Cooling before beginning this
procedure.
(1) Select a quiet area for testing. Duplicate the
complaint conditions as much as possible. Switch the
compressor on and off several times to clearly iden-
tify the compressor noise. Listen to the compressor
while the clutch is engaged and disengaged. Probe
24 - 46 PLUMBINGBR/BE
PLUMBING (Continued)

(4) Check that safety labels regarding the use of
seat belts and air bags are in place (such as on the
sun visors) (Fig. 30).
(5) Ensure head restraints are properly installed.
Inspect the height adjustment for ease of operation.
INSPECTION - SEATS
(1) Remove protective seat, carpet and door covers
(if being delivered) where applicable.
(2) Check that manual/power seat adjustments
work properly for all seats (Fig. 31).²Inspect the operation of front seat mechanical
slides and power adjusters (Fig. 31)
²Check the seatback recliner for ease of release
and operation
²Check the rear seatback latches for ease of
release
²On fold-down rear seats, latch the rear seats
and pull forward on the seats to check that the
latches hold
(3) Check the seat heaters on vehicles equipped
with heated seats.
(4) Check that all seats are securely located in
their adjustable tracks (Fig. 31).
Fig. 31 SEAT CONTROLS
Fig. 28 HEADLAMP SWITCH
Fig. 29 EMERGENCY FLASHER SWITCH
Fig. 30 SEAT BELT LABELS
BR/BENEW VEHICLE PREPARATION 30 - 13
BODY INTERIOR (Continued)