2013 HONDA RIDGELINE catalytic converter

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This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise to
about the middle of the gauge. In
severe driving conditions, the pointer
may rise to the upper zone. If it
reaches the red (hot) mark, pull
safely to the side of the road. For
instructions and precautions on
checking the engine’s cooling
system, see page .
This shows how much f uel you
have. It may show slightly more
or less than the actual amount.370
Gauges
Temperature Gauge
Fuel Gauge
76
U.S. model is shown.
On models with navigation system
SPEEDOMETER
TACHOMETER TEMPERATURE GAUGE
SPEEDOMETER
TACHOMETER TEMPERATURE GAUGE
On models without navigation system
FUEL GAUGE
FUEL GAUGE
INFORMATION DISPLAY
MULTI-INFORMATION DISPLAY INFO ( ) BUTTON
INFO ( ) BUTTONTRIP/RESET
BUTTON SELECT
BUTTON
SEL/RESET
BUTTON
Avoid driving with an extremely low
f uel level. Running out of f uel could
cause the engine to misf ire, damaging
the catalytic converter.
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Inst rument s and Cont rols

Make sure the parking brake is
f ully released bef ore driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
Make sure the moonroof (if
equipped) and the
windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.
in the cargo area in your vehicle or
the In-Bed Trunk, or take them
with you.
Lock the doors.
Check the indicator on the driver’s
door to verify that the security
system is set.
Never park over dry leaves, tall
grass, or other f lammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.If the vehicle is facing uphill,
turn the front wheels away
from the curb.
If the vehicle is facing downhill,
turn the front wheels toward
the curb.
On vehicles with security system
Parking
Parking T ips
285
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Driving

µ
Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.
................
Identif ication Numbers . 384
................................
Specif ications .386
DOT Tire Quality Grading ......................
(U.S. Vehicles) .388
Unif orm Tire Quality ..................................
Grading .388
.................................
Treadwear .388
......................................
Traction .388
.............................
Temperature .389
.................................
Tire Labeling .390
Tire Pressure Monitoring System (TPMS) Required Federal ............................
Explanation .392
.......................
Emissions Controls .395
.....................
The Clean Air Act .395
Crankcase Emissions Control ....................................
System .395
Evaporative Emissions Control ....................................
System .395
Onboard Ref ueling Vapor ................................
Recovery .395
...
Exhaust Emissions Controls . 396
....................
PGM-FI System .396
Ignition Timing Control ................................
System .396 Exhaust Gas Recirculation
...................
(EGR) System . 396
Three Way Catalytic ...........................
Converter .396
....................
Replacement Parts . 396
..
Three Way Catalytic Converter . 397
........................
Emissions Testing .398
T echnical Inf ormation
383
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The exhaust emissions controls
include four systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way
catalytic converter. These four
systems work together to control
the engine’s combustion and
minimize the amount of HC, CO,
and NOx that come out the tailpipe.
The exhaust emissions control
systems are separate from the
crankcase and evaporative
emissions control systems.
The PGM-FI system uses
sequential multiport fuel injection.
It has three subsystems: air intake,
engine control, and fuel control.
The powertrain control module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls
how much fuel to inject under
all operating conditions.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust gas recirculation
(EGR) system takes some of the
exhaust gas and routes it back
into the intake manifold. Adding
exhaust gas to the air/fuel mixture
reduces the amount of NOx
produced when the fuel is burned.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), nitrogen
(N ), and water vapor.
The emissions control systems are
covered by warranties separate
from the rest of your vehicle.
Read your warranty manual for
more information. The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
396
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Technical Inf ormation

The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on fire any
combustible materials that come
near it. Park your vehicle away
from high grass, dry leaves, or
other flammables.The defective three way catalytic
converters contribute to air pollution,
and can impair your engine’s
perf ormance. Follow these
guidelines to protect your vehicle’s
three way catalytic converters.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective. Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
The three way catalytic converter
contains precious metals that serve
as catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Honda part
or its equivalent.
Three Way Catalytic Converter
397
THREE WAY CATALYTIC CONVERTER
WARM UP THREE WAY CATALYTIC
CONVERTERS
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Technical Inf ormation

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CONT INUED
........................................
Sun Visor .140
........................
Sunglasses Holder .138
Supplemental Restraint System (SRS) ......................................
Servicing .32
.........................
SRS Indicator .30, 64
...................
System Components . 23
..................................
Synthetic Oil .325
.....................................
Tachometer .76
Tailgate, Dual-Action ...............................
Indicator .11, 115
...................................
Operation .113
......
Taillights, Changing Bulbs in . 337
.
Taking Care of the Unexpected . 357
Technical Descriptions ....
DOT Tire Quality Grading . 388
.....
Emissions Control Systems . 395
Three Way Catalytic ...............................
Converter .397
.......................
Temperature Gauge .76
...................
Tensioners, Seat Belts . 22
............................
Thef t Protection .205
..
Three Way Catalytic Converter . 397....................................
Timing Belt .333
....................................
Tire Chains .351
.........
Tire, How to Change a Flat . 359
.................................
Tire Labeling .390
Tire Pressure Monitoring ....................
System (TPMS) .276
Low Tire Pressure ..................
Indicator . 72, 276, 279
Required Federal ............................
Explanation .392
.....
Tire Pressure Monitor . 277,280
....
TPMS Indicator . 72, 73,277,279
...............................................
Tires .345
..............................
Air Pressure .347
.........................
Checking Wear .347
..........................
Compact Spare .358
....
DOT Tire Quality Grading . 388
......................................
Inf lation .346
..................................
Inspection .347
..............................
Maintenance .348
...................................
Replacing .349
......................................
Rotating .348
...........................................
Snow .350
....................
Specif ications .350, 387
................................
Tire Chains .351
...................
Tools, Tire Changing . 359Towing
.....................................
A Trailer .294
................
Emergency Wrecker . 381
.................................
Equipment .299
....
Equipment and Accessories . 295
.............................
Weight Limit .291
.........................
Trailer Loading .293
.................
Trailer Towing Tips . 301
.............
Transf er Assembly Fluid . 387
Transmission ...............
Checking Fluid Level . 329
...........................
Fluid Selection .330
..............
Identif ication Number . 385
.............
Shif ting the Automatic . 269
.....................................
Treadwear .388
.................................
Trip Meter .79, 84
................................
Trunk, In-Bed .116
....................................
Turn Signals .95
Unexpected, Taking Care ..........................................
of the .357
..
Unif orm Tire Quality Grading . 388
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Î:U.S.only