I used to do Emissions work in Mass at a speed shop. The original part had a barbed fitting where the hose from the evap canister connected, the replacement solenoid has a smooth fitting so with a small stainless steel clamp the repair was straight forward. The videos take real time to create and pull us away from real work that pays our bills. So we may have to pull it, I would of course leave it for last. I troubleshoot it down to the solenoid.
Linking to outside content is generally not allowed, unless it's germane to the current discussion. The original one lasted 10 years. Not every auto repair shop has this equipment, you might need to visit a dealer or a larger well-equipped shop for repairs. I would start with the purge valve, you should check the vent too. My check engine light came on a few weeks ago and it would not come on some times until I drove for awhile.
I've had this problem with my 06 at around 20,000 mi. In those cases the vent valve was bad. Thanks for your support of our channel!! Repair or replace all defective wiring to ensure that obtained readings fall within specifications. I called about a month ago. The hard hose going to the vent valve actually routes over the tank. The first time the diagnostic fails, the control module stores this information in the Failure Records. This vehicle is not that old to be having worn pieces.
Here at Advance Auto Parts, we work with only top reliable Vapor Canister Vent Solenoid product and part brands so you can shop with complete confidence. I believe gm has made a replacement part for the solenoid. What are the common causes of code P0449? Sorry it took me so long to reply. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. To make sure check the voltage at the pink wire. The replacement solenoid was exact in all the right areas bracket mount, electrical connector and the canister connection on the o-ring side.
Step 4 If all electrical values fall within specifications, it should be possible to manually activate the vent valve repeatedly with the scanner if the scanner has that capability. This trouble code is a reference number that is given to you when you plug your Sierra into a. We allow links, pictures, video, or audio file to help diagnose your problem. This is one of the most common issues that causes the code. The solenoid should be mounted on the back side of the tank. Finally, remove the valve, you may be able to access the pintle inside and it simply could just be sticking from fuel residue.
In addition, all the involved vacuum hoses need to be cleaned or replaced. The more trouble codes there are, the easier it can be to diagnose a problem. Step 7 When replacing, or re-installing the vent valve after testing, it is always a good idea to inspect all associated vacuum lines for signs of damage, cracking, splitting, or other issues. I think this is a very common problem. I called about a month ago. Also, a really good scanner will help you identify whether or not the valve is operating correctly. I had a P0449 code and this fixed it.
Just ship it here: South Main Auto Repair 47 S. The most common cause of code P0449 is failure of the vent valve caused by the presence of dirt or charcoal particles, or a failure of the vent valve control solenoid that prevents the valve from opening or closing. I think this is a very common problem. The list of automotive Makes at the right edge of the screen. If your are for a different car, select that vehicle series before searching for the diagnostic codes because not all used by one manufacture are used by the other makes. All of my research showed that the solenoid often goes bad and the vent valve gets stuck causing a thrown code.
Please report bad advice to the mod team. I troubleshoot it down to the solenoid. It should be around 12 volts. . You should particularly notice the smell of fuel around the fuel tank area or fuel filler tube. Only give advice on something you believe to be true.
My service engine light came on a couple of days ago on my 07 Yukon 4wd. What is also good is that the smooth connector on the replacement solenoid is longer than the one on the original so that when you cut the hose at the start of the barbed fitting to remove it from the defective part,it does not affect how the assemble fits back on the vehicle when attached to the replacement part. I troubleshoot it down to the solenoid. I have read where some people have just changed the solenoid but others have changed the harness as well. Step 5 If the scanner does not or cannot activate the vent valve solenoid, consult the manual on the location of the valve. Note that since vent valve solenoids are normally open, you need to apply battery current to the solenoid so that the valve closes. From under the truck you can remove the valve wiring connector, remove the valve from the tank and remove the lines from the valve and canister.