Infiniti QX56 (JA60). Manual — part 683
ENGINE MAINTENANCE
MA-25
< ON-VEHICLE MAINTENANCE >
C
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F
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• Checking and adjusting plug gap is not required between change
intervals.
INSTALLATION
Installation is in the reverse order of removal.
Spark Plug Types
CAUTION:
Do not drop or shock spark plug.
EVAP VAPOR LINES
EVAP VAPOR LINES : Checking EVAP Vapor Line
INFOID:0000000005259660
1. Visually inspect the EVAP vapor lines for improper attachment, cracks, damage, loose connections, chaf-
ing, or deterioration.
2. Inspect the vacuum relief valve of the fuel tank filler cap for clogging and sticking. Refer to
SMA806CA
Make
NGK
Model
Standard model
Standard type
DILFR5A-11
Gap (Nominal)
1.1 mm (0.043 in)
MA-26
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
CHASSIS AND BODY MAINTENANCE
IN-CABIN MICROFILTER
IN-CABIN MICROFILTER : Removal and Installation
INFOID:0000000005403149
REPLACEMENT PROCEDURE
1. Remove the glove box assembly from the instrument panel. Refer to
IP-17, "Removal and Installation"
.
2. Remove the screw and remove the in-cabin microfilter cover as
shown.
3. Remove the two in-cabin microfilters from the front heater and
cooling unit assembly housing.
4. Insert the first new in-cabin microfilter into the front heater and
cooling unit assembly housing and slide it over to the right.
Insert the second new in-cabin microfilter into the front heater
and cooling unit assembly housing as shown.
NOTE:
The in-cabin microfilters are marked with air flow arrows. The
end of the microfilter with the arrow should face the rear of the
vehicle. The arrows should point downward.
5. Install the in-cabin microfilter cover.
6. Install the glove box assembly in the instrument panel. Refer to
IP-17, "Removal and Installation"
.
7. Fill out the date information on the small replacement label and attach it to the glove box lid.
EXHAUST SYSTEM
EXHAUST SYSTEM : Checking Exhaust System
INFOID:0000000005403150
Check exhaust pipes, muffler and mounting for improper attachment, leaks, cracks, damage or deterioration.
LJIA0134E
LJIA0148E
LJIA0134E
CHASSIS AND BODY MAINTENANCE
MA-27
< ON-VEHICLE MAINTENANCE >
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• If anything is found, repair or replace damaged parts.
A/T FLUID
A/T FLUID : Checking the A/T Fluid (ATF)
INFOID:0000000005403151
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
.
1. Before driving, the A/T fluid level can be checked at A/T fluid
temperatures of 30
° to 50° C (86° to 122° F) using the “COLD”
range on the A/T fluid level gauge as follows:
a. Park the vehicle on a level surface and set the parking brake.
b. Start the engine and move the selector lever through each gear
position. Shift the selector lever into the “P” position.
c. Check the A/T fluid level with the engine idling.
d. Remove the A/T fluid level gauge and wipe it clean with a lint-
free paper.
CAUTION:
When wiping the A/T fluid from the A/T fluid level gauge,
always use a lint-free paper, not a cloth.
e. Re-insert the A/T fluid level gauge into the A/T fluid charging
pipe until the cap contacts the top of the A/T fluid charging pipe
as shown.
CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until
the cap contacts the top of the A/T fluid charging pipe, with
the gauge reversed from the normal inserted position.
f.
Remove the A/T fluid level gauge and note the A/T fluid level. If
the A/T fluid level is at low side of range, add A/T fluid to the
transmission through the A/T fluid charging pipe.
CAUTION:
Do not overfill the transmission with A/T fluid.
g. Install the A/T fluid level gauge and the A/T fluid level gauge bolt.
2. Warm up the engine and transmission.
3. Check for any A/T fluid leaks.
4. Drive the vehicle to increase the A/T fluid temperature to 80
° C (176° F).
SMA211A
LLIA0071E
A/T fluid level
gauge bolt
: Refer to
TM-186, "Removal and Installation (2WD)"
SCIA2899E
MA-28
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
5. Allow the A/T fluid temperature to fall to approximately 65
°C (149°F). Use the CONSULT-III to monitor the
A/T fluid temperature as follows:
NOTE:
The A/T fluid level will be significantly affected by the A/T fluid temperature as shown. Therefore monitor
the A/T fluid temperature data using the CONSULT-III.
a. Connect CONSULT-III to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.
c.
Read out the value of “ATF TEMP 1”.
6. Re-check the A/T fluid level at A/T fluid temperatures of approxi-
mately 65
°C (149°F) using the “HOT” range on the A/T fluid
level gauge as shown. The HOT range is between 50
° - 80° C
(122
° - 176° F).
CAUTION:
• When wiping the A/T fluid from the A/T fluid level gauge,
always use lint-free paper, not a cloth.
• To check the A/T fluid level, insert the A/T fluid level
gauge until the cap contacts the top of the A/T fluid charg-
ing pipe, with the gauge reversed from the normal
inserted position as shown.
7. Check the A/T fluid condition.
• If the A/T fluid is very dark or has some burned smell, there
may be an internal problem with the transmission. Refer to
TM-152, "A/T Fluid Cooler Cleaning"
. Flush the transmission
cooling system after repairing the transmission.
• If the A/T fluid contains frictional material (clutches, bands,
etc.), replace the radiator and flush the transmission cooler
lines using cleaning solvent and compressed air after repairing
the transmission.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe.
9. Tighten the A/T fluid level gauge bolt to specification.
SLIA0016E
LLIA0071E
A/T fluid level
gauge bolt
: Refer to
TM-186, "Removal and Installation (2WD)"
SCIA2899E
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