How to find a misfire without a scanner 2
Scanners are great tools, but sometimes they aren't any help. That's when
understanding the system, and how to test it is all you have. Here are
some ways to find the problem
Evap large leak smoke test
Some EVAP leaks can be hard to find. But usually "large" leaks can be
spotted pretty quick. Here's the way I've been finding them with a simple
Automotive Evaporative Emissions - Part One
From www.autofixworld.com: Part One of a two-part video describes how
onboard monitors test vehicle fuel containment systems for fuel vapor
leaks. Three types are discussed: pressure test; vacuum test; and natural
vacuum leak detection.
Toyota Corolla Evap Canister Replacement
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How to Fix A Check Engine Light : P0455 Emissions Purge Valve Replacement
A check engine light can be caused by many different problems. Fortunately
the ECM will generate and store a code when a component fails or near
failure. This points us in what direction the issue is and guides on the
The automobile consist of:
• Fuel System: Purpose is to deliver fuel to the engine. It consists of
the fuel tank, pump, gauge/sensor, filter, pressure regulator and
• Air Intake System: Purpose is to clean and direct outside air into the
engine. It consist of air filter, ducts, air plenum and intake manifold.
• Exhaust System: Purpose is to
direct Exhaust gasses out of
combustion out of engine. It consists of the Exhaust manifold, converters, pipes and
• Cooling System: Purpose is to remove excess heat from the engine. It
consists of water pump, hoses, radiator, thermostat, cooling fan and
coolant recovery tank. Also the oil system serves as a cooling system as
well as a lubricating system. It consist of oil pump, pan, filter and
1. Clutch: Purpose is to connect the engine and transmission together. It
consists of clutch drive disc, driven disc, release bearing, clutch fork,
cable, slave cylinder, master cylinder. There are three types of clutch
systems: mechanical, cable and hydraulic.
2. Transmission: Purpose is to match engine speed to road speed. Two types
used are manual or automatic. These consist of gears, linkages, cables and
converters for automatics. A manual is connected to the clutch by a
flywheel and automatic by a flexplate.
3. Driveshaft: Purpose is to connect the transmission to the rear axle. It
consists of a slip yoke, shaft and universal joints.
4. Rear axle differential: Purpose is to change the angle of motion from
engine to the wheels. It also divides torque between the wheels. It
consists of a ring and pinion gear, carrier, bearings, crush sleeve and
5. Wheels/Tires: Purpose is to provide traction to the road as well as
carry the weight of the vehicle.
Vehicle Control Systems:
1. Brakes: Purpose is to slow and stop the vehicle. It consists of master
cylinder, brake Booster (vacuum or
hydraulic), calipers, drums, pads and rotors.
2. Steering: Purpose is to direct vehicle in the required direction.
Consists of steering gear (rack & pinion), steering wheel, column,
inner/outer tie rods, pump, reservoir, hoses and pipes.
3. Suspension: Purpose is to provide stability and handling while also
providing comfort to the ride. Consists of shocks, struts, sway bars, end
links, springs, trailing arms and bushings.
1: Heating Ventilation Air Conditioning (HVAC): Heats and cools interior
air to passenger comfort. Also circulates outside and inside air.
• Air Conditioning: Consist of condenser, compressor, accumulator
(receiver/dryer) orifice, expansion valve, hoses, evaporator, controls,
actuators and modules.
• Heating: Consists of heater core, valves, hoses and switches.
1. Power Generation: Creates electrical power to run all the electrical
systems. Consists of the alternator.
2. Power storage: Stores unused power to start the car and supply voltage
to the alternator to create more electricity.
• Both systems consist of wiring, harnesses, fuse, relays and modules.
Wells EVAP Training with Sgt. Tech. P0440, P0441, P0442 etc.
http://www.wellsve.com/ This video demonstrates how a typical EVAP system
functions. P0440, P0441, P0442, P0456, P0457, P0455, P0443, P0446, P0449,
P0450, P0451, P0452, P0453, P0496 trouble codes with explanations and
possible causes. Why Wells fuel tank pressure sensors are rated the best.
"The information presented in this program is based on a specific
diagnostic case and might not directly apply to the vehicle you are
repairing. We do not represent or warrant that the information presented
is complete or error free. Please take all safety precautions. We
disclaim any and all liability for losses, injuries or damages in
connection with your repair."
Automotive Repair: Diagnosing EVAP Systems, The Trainer, June 2011
http://workshop.search-autoparts.com Diagnosing "Check Engine" light
complaints is a common task for most shops. And a leading cause of an
illuminated MIL (Malfunction Indicator Lamp) is a fault in the evaporative
The primary function of the evaporative emissions system (also called the
EVAP system) is to prevent fuel vapors in the tank from being released to
the atmosphere. Instead, the vapors are collected in an activated charcoal
storage tank, or canister. The ECM controls the purge of the canister by
opening or closing a solenoid valve connecting the canister to the intake
manifold of the engine, and allows the stored vapors to be fed and burned
in the engine.
The EVAP system is tested by the ECM to make sure all the components
function as they are supposed to, and checks the system for leaks to the
atmosphere. A pair of EVAP related codes on Pete's 2007 Toyota, and how he
approached their diagnosis, is the topic of June's "The Trainer". Click
this link to subscribe to Motor Age! http://bit.ly/MA_YT_freesub
EVAP System Operation
EVAP System Operation
Amazon Printed Books
Amazon Kindle Edition
Explain the operation of the EVAP system. The EVAP system is in charge of
recovering the excess fuel vapors and re-introducing them into the engine.
It isn't just an emission system. If it malfunctions is also has a huge
effect on engine performance and certain components operation will be
cancelled by the ECM if the EVAP system fails. Learn how they operate here
and how to test. The OBD-II scanner or Scan-1 is used to diagnose these
systems and evaluate the process. See how it works.
Amazon Printed-Books & Kindle:
Google Play Android APPs:
Amazon Video DVDs:
Barnes & Noble Nook:
Apple iTunes iPad:
Chevy Blazer Charcoal Canister & Bumper End Replacement
Over five years ago my tread separated from my tire while driving 70mph on
I-10. This resulted in the total loss of the charcoal canister, and the
destruction of the bumper end. Since that event my "Service Engine" light
has been on, shooting the code P0449.
I've always wanted to fix this as this happened on my shiny new (at the
time) Blazer. Online the bumper end starts at ~$85. And the charcoal
canisters start at ~$150. This entire project cost $54 all in all, and a
total TOT (time on task) of ~4 hours.
**Estimated 243 minute upload time**
Inside My Odyssey Transmission - EricTheCarGuy
Inside My Odyssey Transmission - EricTheCarGuy
I would hardly call this video complete but you did ask me to make it for
you. As of this writing the transmission is shifting fine however the
light for the TCC came up and I haven't had time to look into that yet.
It's funny though since it does appear to be working fine, it might be a
loose connection or some other issue but like I said I haven't had the time
lately. Perhaps I'll do an update video with what I find. I guess the big
question would be if I would do this again and I would say that I might,
but only on my car not someone else's, it's a lot of work to get one of
these out without a lift or other useful equipment like a transmission
jack. Anyway enjoy the insides of a Honda automatic transmission as I'm
sure you won't see it often.
Click below and Stay Dirty
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee
against unauthorized modifications of this information, or improper use of
this information. EricTheCarGuy assumes no liability for property damage
or injury incurred as a result of any of the information contained in this
video. EricTheCarGuy recommends safe practices when working with power
tools, automotive lifts, lifting tools, jack stands, electrical equipment,
blunt instruments, chemicals, lubricants, or any other tools or equipment
seen or implied in this video. Due to factors beyond the control of
EricTheCarGuy, no information contained in this video shall create any
express or implied warranty or guarantee of any particular result. Any
injury, damage or loss that may result from improper use of these tools,
equipment, or the information contained in this video is the sole
responsibility of the user and not EricTheCarGuy.
Ford Explorer Charcoal Canister Cleaning
If you have a Check Engine Light on for Emissions (Such as P0446) this
could help you! Remove the lines by squeezing the clips, undo the 3 bolts
holding the unit up, and undo the electrical connector. Use carb/choke
cleaner to spray down the parts and to dissolve the dirt and grime, let
parts sit for about 1-2 mins, then reinstall!