Gas pump shut off early? SOLVED! Entire evap system explained & troubleshoot on 2005 Chevy Suburban

Part 1 of 4 videos on fixing the gas pump shut off early problem. Likely there is a problem with the "evap" system which commonly fails on Chevy Tahoe and Suburban from 1997-2006. Check engine lights and issues putting gas into the tank where the pump clicks and won't allow any more gas are common symptoms of an evap system issue. My vehicle is a 2005 Chevy Suburban LTZ, 5.3L Flex fuel, 2WD.

Links to parts in this video:

Evap system fix videos:

This may also apply to the Chevy Tahoe, GMC Yukon, GMC Yukon XL.

***This channel is for entertainment purposes only! I am not a professional. Do not do what I do. Do not take my advice. The methods I use may be completely wrong and/or dangerous. Please seek professional help with anything and everything and do your own due diligence. Working on cars is extremely dangerous. I am not responsible for any loss of life or limb or property. DO YOUR OWN RESEARCH. THIS CHANNEL IS FOR ENTERTAINMENT PURPOSES ONLY!***

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[marv.mon.]

Brother this is the only video I could find like this. I really needed this info. You have no idea how much this simple information helped. Can't thank you enough

[HOSER]

Thanks for the video! I replaced the canister first, clogging continued. Replaced the Canister switch, clogging continued! Thanks to your great description of the system, I was able to unclog the vent line from the tank. The vent line is the long one with the white connectors that is connected to the white fitting on top of the tank. I did not drop the fuel tank. I just disconnected the connector from the charcoal cannister, inserted a smaller hose attached to my shop vacuum and started sucking the charcoal bits ( about a cup of charcoal). Used my leaf blower to blow air into the tank thru the fuel filler as suggested by another viewer. Took me about 2 hours to remove the charcoal and clear the vent.

[raynetamanwarin]

The lines! I did not even think that charcoal would be in the lines! I've replaced all three parts but none of the videos broke it down like you did nor did they say to clear/blow out the lines! Thank you thank you! I thought I was going insane for a little while....lol

[codyparrish]

Dude, that video is exactly what I've been needing! Thank you so much. I haven't been able to find an in-depth video on this issue breaking down the entire system like you did.

[twalatka]

I have a 2007 JKU. I spend 20+ .minutes filling my tank. I have taken it in multiple times and not ONE mechanic EVER told me about this damn canister. I have rebuilt motors and transmissions, I've never before had issues putting fuel in my vehicles. Thank you soo much for this video.

[Trippleroc]

Wow brother thank you so much for this video. I bypassed the canister and vent valve, by disconnecting the lines and went to the gas station and still had the same issue. Your video just confirmed my suspicion about those little bits I saw when I disconnected the big line Thank you for this. I feel 100% more confident in what I’m doing and what I have to do next. 👍🏽

[sgt.hollowpoint]

I ran into this video, AFTER, I did this task. Took me about 6 hours because some of the hoses have their special way of disconnecting.

[DonBMW]

Had the same problem where I couldn't fuel my Yukon. Started by disconnected the EVAP canister and all the little carbon pellets fell out. So, I dropped the tank, cleared all the lines w compressed air and replaced the canister and canister vent solenoid. With all that done I can now fill up the Yukon perfectly. No more shut off issues.

[qwerty]

I don't know everything! BUT the anti-siphon valve where the filler neck meets the tank is spring loaded and was preventing me from filling up my tank at full force. When I dropped the tank to replace the fuel pump at 160, 000 miles I tapped the anti-siphon spring and plastic holder into the tank and retrieved it from the fuel pump hole. I was SO happy when I returned to the filling station and could then fill my tank with the nozzle at full blast. Before this I had to hold the damn nozzle barely open to prevent it from shutting off automatically as the filler neck backed up with fuel. I hope this helps someone. Send me a digital thank you if it does, it would make my day.

[chriswhite]

There were some problems with the wind and the sound, but I like the way you laid everything out so we could see the whole system. I'm facing the same problem and am about to get started on the tear down. Thanks again for the video.

[jerrym]

i replaced all 3 and still got the code, now i've dropped the tank and going to replace all the vent lines, 2006 suburban 4x4 z71. i'll let you know if it fixes it. great video by the way. was getting sick of seeing all the other trouble shooting done with a $3000 scan tool

[JohnLee-sdsu]

Best video I have seen showing every part in the system. Now i understand how each part works and know what to look for when the CEL pops up.

[russingle]

This is the only video and source of info I have found on a PO449 problem.Thanks dude you saved me half a headache.

[jedarramorriss]

Dude, you are a LIFE SAVER!!!! 🤩😍🤩 I had never dropped a gas tank before, but thanks to your videos I was able to drop it and clear all of the evap lines and put it back together, and now I can pump gas into my 2005 Suburban Z71 5.3 Flex 😁 I am so frickin happy 😅
Thank you so much!!!!

[BrokenRRT]

If you live on dirt roads or very dusty environment go with the vent solenoid relocation option. Otherwise you’ll just keep replacing it. Other option is to wrap in with extra filter material and zip tie it around it. Then just replace that filter every so often.

[BeADad]

Good luck finding a better video than this one! This is really good, great job!

[champagne]

I have this exact problem with a 2007 Chevy Tahoe 5.3L . I don't get why some gas station pumps it will pump fine every time I gas up and there's some stations pumps where it does it every time. I would think that it would do it at every gas station.
Awesome video...very detailed and informative!!!

[crazygorillabear]

I unhooked the lines and stuck a leaf blower in my gas inlet and blew all the bits out. Saved me from dropping fuel tank.

[couchrider]

This is the video to watch if your having fill up problems. 😊

[blakedriggers]

OMG Make a video like this for ever system on ever vehicle... mechanics will be out of a job!!! YOUR AMAZING!!!