Page 1681 of 2490
Exhaust System - Intermediate Muffler RH4
.0L SC V8 - AJ26
Re
moval and Installation
Remov
al
Installation
1. R
aise the vehicle on a four-post ramp.
2. Raise the rear of the vehicle bo dy and support on two stands,
located under the re ar jacking points.
3. Di
sconnect the intermediate
muffler from the rear muffler.
Sl
acken the securing clamp, re
ar muffler to intermediate
muffler and separate the in termediate muffler from the
rear muffler.
4. R
emove the intermediate muffler.
Sl
acken the securing clamp, front muffler to intermediate
muffler and separate the in termediate muffler from the
front muffler.
5. R
emove the muffler assembly
from the axle carrier and from
the over-axle mounting rubber.
6. Clean and inspect al l exhaust joints.
1. Fit the intermediate muffler assembly.
F
it the muffler assembly to the axle carrier and to the
over-axle mounting rubber.
Page 1682 of 2490
2. Locate the intermediate muffl er to the front muff
ler.
3. Cor r
ectly position the intermedia
te muffler at the front muffler
to align the correct refere nce / index indicator ring.
Tighte
n the clamp, intermediate
muffler to front muffler.
4. NO TE
: If necessary, loosen and rotate the intermediate
muffler, at the front to intermediate muffler joint, to achieve the
tailpipe trim settings. Refer to Specifications in this section.
Correctly position the rear muffler assembly.
Connect the rear muffl
er to the intermediate muffler and
insert to the Nominal indicator ring, rotating back and
forth to aid engagement.
Chec k
that the mounting is located correctly into the
mounting rubber.
Chec k
that the tailpi
pe position is wi thin the specified
settings, adjusting engageme nt within the Maximum and
Minimum indicator rings if necessary. Refer to
Specifications in this section.
5. Tighten the securing clamp, in termediate muffler to rear
muffler.
Page 1684 of 2490
Ex
haust System - Muff
ler and Tailpipe LH
Remo
val and Installation
Remov
a
l
Installation
1. Ra
ise the vehicle on a four-post ramp.
2. Slacken the securi
ng clamp, re
ar muffler to intermediate
muffler.
3. Re
move the rear muffler
and tailpipe assembly.
Separate the rear muffl er fr
om
the intermediate muffler.
Di
sengage the rear muffler mounting peg from the
mounting rubber.
R e
move the rear muffler asse
mbly. Rotate the assembly
back and forth to aid removal.
4. Clean the exhaust joints.
1. Fi
t the rear muffler and tailpipe assembly.
Connect
the rear muffl
er to the intermediate muffler and
insert to the Nominal indicator ring.
2. Position and align the rear mu ffler and tailpipe assembly.
Engage the peg with
the mounting rubber.
Chec
k
that the tailpi
pe position is wi thin the specified
settings, adjusting engageme nt within the Maximum and
Minimum indicator rings if necessary; refer to
Specifications in this section.
Page 1685 of 2490
3.
Tigh
ten the securing clamp, re
ar muffler to intermediate
muffler.
4. Lower the ramp.
Page 1686 of 2490
Ex
haust System - Muff
ler and Tailpipe RH
Remo
val and Installation
Remov
a
l
Installation
1. Ra
ise the vehicle on a four-post ramp.
2. Slacken the securi
ng clamp, re
ar muffler to intermediate
muffler.
3. Re
move the rear muffler
and tailpipe assembly.
Separate the rear muffl er fr
om
the intermediate muffler.
Di
sengage the rear muffler mounting peg from the
mounting rubber.
R e
move the rear muffler asse
mbly. Rotate the assembly
back and forth to aid removal.
4. Clean the exhaust joints.
1. Fi
t the rear muffler and tailpipe assembly.
Connect
the rear muffl
er to the intermediate muffler and
insert to the Nominal indicator ring.
2. Position and align the rear mu ffler and tailpipe assembly.
Engage the peg with
the mounting rubber.
Chec
k
that the tailpi
pe position is wi thin the specified
settings, adjusting engageme nt within the Maximum and
Minimum indicator rings if necessary; refer to
Specifications in this section.
Page 1687 of 2490
3.
Tigh
ten the securing clamp, re
ar muffler to intermediate
muffler.
4. Lower the ramp.
Page 1769 of 2490

Air Distribution and Filtering - Air Distri
bution and Filtering
Description an
d Operation
Air Distribution
Ou
tside air enters the plen
um via four inlets in the lower windshield panel.
If the air conditioning system is operating in FRESH mode (not recirculation mode), then air is drawn through the four
plenum apertures (and particle filters where fitted) and into the air conditioni ng unit via the blower interconnecting ducts in
the LH and RH blower assemblies. Air is c ooled and dehumidified as it passes through the evaporator and is then 'reheated'
to the required temperature as it passes through the heater matrix.
In RECIRCULATION mode, the air in the pass enger compartment is drawn into the air conditioning unit via the recirculation
air inlets on the blower assemblies.
In FRESH mode, air flows from the cabin into the trunk through a gap between the backlight and the parcel shelf. The air is
exhausted from the vehicle through extraction vent assemblies (incorporating one way flaps) whose outlets are above the
rear mufflers.
Air Flow Path
Air Distribution Modes
Bi
-level mode
Page 1800 of 2490
Compressor:
Features
Engine mounted, driven by the accessory drive belt. Fixed displacement type. High-pressure relief valve, to avoid system over-pressure. ECM controlled clutch energized via a relay.
Receiver drier:
Vertically mounted on the ri ght-hand side of the engine compartment next to the engine coolant radiator. Fitted with the high-side charge port. Includes a fluorescent tracer dye me chanism to aid leak detection.
ItemPart NumberDescription
1—Compressor assembly
2—Condenser
3—Evaporator and heater matrix (internal)
4—Receiver drier
5—4-level pressure switch
6—Expansion valve (internal)
7—High-side charge port
8—Low-side charge port
9—Suction muffler
10—Discharge hose
11—Discharge pipe
12—Suction hose
13—Suction pipe
14—Liquid line
15—Jumper hose (condenser hose)