Replacing Vent Valve Solenoid & Purge Valve Solenoid (EVAP Valve) 2005 GMC Yukon
When you get a check engine light, your parts store can test it with a
little electronic device - ask for the check engine light tester.
They go by many names, but look for EVAP Valve or Vent Valve/solenoid &
Purge Valve/solenoid. The one in the rear of the car, near the gas tank, is
known as the "Vent Valve Solenoid Canister." The one in the engine
compartment is called a " Purge Valve Solenoid."
Replacing the one in the engine compartment did the trick. I'd start by
replacing that one first then test it.
$25.97 Vent Valve Canister (fuel tank one)
$35.72 Purge Valve (engine compartment one)
GM Dealer quote: $281.00
I saved $219.31
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
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:
How To Test and Replace EVAP Canister Vent Control Valve P0446
Click Here to Subscribe! http://youtube.com/carsntoys Website:
http://carsntoys.net Evaporative Emission (EVAP) Canister Vent Control
Valve - P0446 - testing and replacement.
The EVAP canister vent control valve is located on the EVAP canister and is
used to seal the canister vent. This solenoid responds to signals from the
ECM. When the ECM sends an on signal, the coil in the solenoid valve is
energized. A plunger will then move to seal the canister vent. The ability
to seal the vent is a necessary part of the diagnosis algorithms for other
evaporative loss system components.
This video is being performed by an experienced tech. Any attempt to repair
automotive parts and/or systems carries risk of personal injury. Always
adhere and follow safe practices when working on vehicles. Such as, use
safety glasses, jack stands, no loose clothing, etc. No guarantee or
warranty is implied. Use the information in this video at your own risk.
Publication, reproduction or distribution of this film is strictly
This was performed on a 1997 Nissan Maxima. Please check with your
vehicle's repair manual for testing parameters.
Seafoaming a 2002 5.3L Chevy Suburban
We decided to seafoam Travis's Suburban for the first time. We really
should of threw new plugs in it because it was needed. But it still got the
job done. Has the 5.3 LM7
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.
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
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."
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.
GM Fuel Tank Pressure Sensor Test
2002 Chevy Silverado fuel tank pressure sensor test. This procedure can be
followed for testing MAP sensors or any other pressure sensor.
Meet the Purge (Evap) Solenoid
Q&A about the fuel vapor system, purge solenoid valve, and charcoal
canister. This video applies to a wide range of vehicles. Re-edited and
uploaded with better information.
GM EVAP Vent Solenoid Testing
2002 Chevy Silverado 4.8L with a P0449 EVAP Vent Solenoid trouble code. For
more info. see www.autocomputerstroubleshooting.com