Let's have a look at this 2004 Chevy Truck that was dropped off at SMA from another shop that was having trouble diagnosing the classic P0446 "EVAP Vent Performance." Honestly folks the GM Purge / Vent type systems are the easiest systems to diagnose. Take the time to look at the videos below put out by Mike Becker from Wells Vehicle Electronics and educate yourself on these before throwing parts at it. Some of the best vids on the web IMO. -Enjoy!
Wells EVAP Training Videos: https://www.youtube.com/playlist?list=PLq_Q0mT6-rccmY5Ai-CtVf9Xjgk9CpdeO
If an SMA Video has helped you out please consider giving using "Patreon" to help support us. The videos take real time to create and pull us away from real work that pays our bills. CLICK HERE: https://www.patreon.com/southmainauto
THANKS A MILLION!!
--Eric O.
If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto
The South Main Auto Amazon Store: https://www.amazon.com/shop/southmainautorepairavoca
AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=
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--Eric & Vanessa O.
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South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair 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 South Main Auto Repair, 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 South Main Auto Repair
Wells EVAP Training Videos: https://www.youtube.com/playlist?list=PLq_Q0mT6-rccmY5Ai-CtVf9Xjgk9CpdeO
If an SMA Video has helped you out please consider giving using "Patreon" to help support us. The videos take real time to create and pull us away from real work that pays our bills. CLICK HERE: https://www.patreon.com/southmainauto
THANKS A MILLION!!
--Eric O.
If you don't like Patreon feel free to use the "PayPal Me" link: https://www.paypal.me/SouthMainAuto
The South Main Auto Amazon Store: https://www.amazon.com/shop/southmainautorepairavoca
AES Wave Automotive Diagnostic Tools: https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=
WANT AN "SMA" STICKER OF YOUR OWN!?!
Simply send and E-mail to SMAstickers @outlook.com including: your shipping address and e-mail address in the text, I in turn will send you a Paypal invoice for $5 each USA or $6 each international. Let me know how many you want and as soon as the Paypal invoice is paid I will ship them out ASAP! Thanks for your support of our channel!!
--Eric & Vanessa O.
Feel like sending some swag to SMA because you love the videos but don't know where to send it?
Just ship it here:
South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair 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 South Main Auto Repair, 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 South Main Auto Repair
How did you reach the pressure sensor on top of the tank? I've been stuck for days up in here..
Love your videos!
I can tell Eric is not a Chevy guy.
great video
You and 1A Auto parts are my two favorite mechanics videos to watch on youtube!
Lol when you said stupid chevys and stupid keys. I have the same issue on my 2005
and it drives me nuts. But id still never drive a Ford!
Why not lift the bed and then have plenty of room to access the gas tank? Takes about 15 min to do.. Loosen 4 bolts 3/4 on the passenger side of bed and remove the other 4 bolts on the drivers side. Unplug left rear harness lights and jack up the bed on the drivers side, using short 2×4 or 4×4 and hold with jack stands… Can also remove fuel pump easily if need to…
Hay fella ….. Which is best the OTC or the Autel …. Like the Way you multitask on the OTC ….. Thinking about buying the ms906 bt . What would you recommend .
I heard something fella …
Any symptoms?
What was the issue?????
Will this cause stallings
Will this cause a misfire??
What type of lube did you use for the O-ring on the Fuel Pressure Sensor?
Eric, you are so technical in your approach and knowledgeable especially when you indicated that the system will check on leaks after the facts and this genius," lucky you perfect businessman".
J
Love your videos man 👍 you have the best views and explanations on YouTube 👍 keep up the good work 😀
Thanks
Nice video, and nice hat!
You just gotta jiggle them keys partner😂
Would fuel pressure sensor cause the truck to idle really rough? Got the same code but canisters been replaced and wiring looks fine. Keeps saying evaporate harness
These scanner tablet tools you have probably cost a LOT of money. Why do they always use ancient, cheap, and SLOOOOOW tablets when they produce them?? Awesome video!!
Hey Eric I have a 97 Chevy and before I bought it the owner before me so that they replace the fuel pump and now the gauge isn't working and I got codes coming up saying about the EVAP sensor and a charcoal canister performance issues and I replace the purge solenoid and I'm still having issues what can be the cause for the reason for the new fuel pump not reading on the gauge properly and fluctuating randomly would that have any negative effect on the EVAP system to
Save me a lot of money!
Check engine light was on; Code p0446. All I did was hit my VSV with a screw driver and got the valve to kick in or out! Thank you very much. (1997 Toyota camry v6)
thanks for info good video
Hey s.r. I have a chevy malibu hybrid 09 whit h the po446 but we're is the fuel tank pressure sensor located .can pls let me know
awesome content, but that UI on that scanner would PISS ME OFF.
Well most comment's are 3yrs old. So I doubt anyone in what's left of my lifetime will read this. ( I'm old lol ) ( bought used car in new place) ( picked shop closest to me so I could walk home)
I only can hope that the shop I have chosen has a mechanic that has your skills. My car is 20yrs old runs great, but money light has been on for past 4 months and inspection expires apr 1 2021. Willing to put some money in her as long as it fixes it and I can continue to get to work.
Does anyone happen to know what the price could be to fix this? Great video thank you.
you may have just solved my problem… i keep getting a PO446, vent valve and purge valve are both working properly, i would've never thought about a tank pressure sensor (and my scan tool doesn't give me that data) but i guess ill be changing it when i fix the sending unit. 👍🏼
Thanks for all you do ! It means a lot.
Chevys are the BEST BEAST TO HAVE
On my Silverado I'm thinking about making a open and closing hatch for the fuel pump and stuff
Great video. Really good diagnostic process
GOOD game, and Job!
As long as it has a radio, cup holders, back up cameras, heated seats, etc, they will keep selling more and more electrical nightmare junk. Should be easier to fix, could be easier to fix, maybe it shouldn't need to be fixed.
Epa should not be used as a pry bar in our broke asses. Epa should not be able to manipulate us to buy something that is not needed without a vote.
Can't wait to see how they justify their existence in auto industry when everything is electric in 2035. Wait, did majority vote for that? Sure industry and tax man are basterdizing their designs so no one can touch them as we lube up the bung holes in anticipation. Sick of it
All.
I see why some guys just put the parts in. It takes a lot of money in scan tools to replace the simplest things. Great video.
What?
I learn a lot from you
Great video Mr owe .as usual enjoyed every minute of it
Trying to get a GM key to turn that doesn't want to. Anyone who has ever worked on cars at all knows that frustration.
Hi Eric Great video!!! I am chasing a evap tank pressure code > my mechanic Bud said he would read the codes and system for 40.00.
He said I was right the tank pressure sensor was the problem was 0 volts reading…so is that lack of voltage from PCM or broken wire or bad Tank pressure switch… Where does the tank sensor get it's 5 volts from so i can trace it. I know the evpa canister gets a ground feed for PC1 pin 17 2005 envoy . Is the power source from the PCM I need a diagram'
Hey let me bring my truck in to be fixed with an empty gas tank and a dead battery…..
Just replaced original battery on my 02 with 354k miles
Great method
Hey I had a P0446 code on my 04 Chevy Tahoe and they have replaced the Evap canister a few times and still get the money light comes back what else could be causing it
What exactly are you using to diagnose the vehicle? I love it and it seems like a great investment!
I commented on your other EVAP vid – P0455. I chased that money light rabbit to no avail. Saw this vid and decided to check the fuel tank pressure sensor. I could check & verify voltage but that was it. Replacing the vapor vent solenoid and purge valve didn’t correct the fault so I ended up at the fuel tank pressure sensor. I did not raise the bed or drop the tank. Sure as heck the sensor tip broke off. Got the soft sensor seal out and was able to wiggle the new sensor in. Did the specific GM “drive cycle” a couple of times and the permanent P0455 was gone. Much appreciated!!
Get to the point instead of taking 30 mins to look at ur slow ass tablet
Hey Eric, thanks for the shout out man!!! Great video as always!!! ~Mike