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.
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**
Finding Engine Vacuum Leaks With A Cigar
Scotty Kilmer, mechanic for the last 46 years, shows how you can find
engine vacuum leaks in your vehicle using cigar smoke. It really works as
well as a thousand dollar smoke machine. And, If you like my car help, be
sure to watch my live car talk show every Saturday morning at 10 AM CST on
YouTube. I answer your car questions LIVE there. Just check it out at
eature=c4-overview . And remember, every TUESDAY I upload a new video, so
don't miss them.
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.
Evaporative Emissions Check Engine Light
A video that may help others to pass an MVD Emissions inspection. The video
contains information about OBD2 data codes and explains in part, the
evaporative emissions system in today's automobile
Fuel Vapor Canister Solenoid
A 101 on the sophisticated computer purge valve, the component of the car
which is used for its vapor recovery systems.
Check Engine Light Diag EVAP Codes
This is a video of a 2006 GMC Sierra that had a check engine light & some
evaporative emissions codes. I show how to diagnose the problem with a
scan tool and the upgraded parts required to repair it. The codes in the
PCM were P0449 & P0455. I repaired it with a procedure in GM TSB
02-06-04-0374 that was to repair a restricted EVAP vent path &/or code(s)
P0446 / P0442. This problem could also result in a fuel tank that is hard
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!