Just found your channel recently and subscribed. What a wealth of information. Thank you for taking the time to make these videos.
@markmurdock280 Жыл бұрын
Man Kenny is a master he knew what size the bolts were for the charcoal canister without having to go through a few sockets he knew the size from previous experience.im always entrigued every video I have learned so much from him
@dbspecials1200 Жыл бұрын
Not just experience from removing some, but mechanics can also tell just by looking at the bolt head. I can always spot a 7mm bolt on a an interior component. here are some wrench crosses: 11mm=7/16, 13=1/2, 14=9/16, 16=5/8, 19=3/4 and 21=13/16.. there isn't a good standard box-end match for a 9,10,12,15,17,18mm.
@byenzer5101 Жыл бұрын
1. At 02:05, you verified the purge valve was "not" passing vacuum when it is "OFF". That's a good test. 2. Unfortunately, you didn't use your scanner's bi-directional feature to send the computer a command to turn the valve "ON" and thus, verify it works and is indeed operational. 3. Furthermore, the amount of "raw fuel" that dripped out of the evap can was "not" unreasonable. A couple of drops is totally O.K., as this could simply be only a mixture of water vapor condensate mixed with normal fuel vapor condensate. (Remember, the truck was just sitting for many hours, allowing condensates to pool at the bottom of the evap can.) 4. You can manually activate the purge valve, via back T-Pin back probing the valve power connector and simply momentarily touching a test light to the valve's NEG GND pin. (Don't leave it connected to the valve though. Only touch it to command it "ON" and feel for vacuum again. You should also hear and feel a "click".) 5. My guess, there is still a problem with the evap system, and it will only be a matter of time before the problem resurfaces again.
@Fierofreak01 Жыл бұрын
Thanks for pointing me in the right direction. I had an intermittent p0175 and P0172 on a recently re-sealed engine, so definitely not a gasket. Although, it wasn't a saturated charcoal cannister it ended up being the purge solenoid would stick open and cause my short term to peg at -30 at idle. After replacing with an actual GM solenoid, short term went to normal. I appreciate you taking the time to posting this video. -Jason
@BurgerBin10 ай бұрын
I was wondering about this as well if that’s my issue seems my trims nearly match each other but I feel like they’re too much where it’s a faulty sensor for the o2
@marknarveson4853 Жыл бұрын
A few years ago (about five years) I asked different mechanics about when to change a canister. Not one of them knew anything about canisters. All certified mechanics.
@mc5216 Жыл бұрын
Also with the 2014 up Silverados and Sierras with the 5.3 gdi engines, the high pressure fuel pump will cause the rich codes as well. My 2014 had that issue. Replaced the high pressure fuel pump and change the oil. Cleared the codes, and had no issues since.
@dakotahendrix90379 ай бұрын
I hate that you said this. I hate intake work.
@vurzr30498 ай бұрын
I have rich fuel. I changed bank sensors and still popped up. Will the high pressure fuel pump be the problem?
@theadorephaedon16917 ай бұрын
See
@dejanmilasin65436 ай бұрын
😊
@salserr5022 Жыл бұрын
Another great video and tip, I see this all the , I work on police interceptor all day long, I'm changing the canister all the time because they overfill by topping of the tank. Kenny some people just won't listen. Great video. 👍
@M21-w1y Жыл бұрын
Yeah, I used to fill gas to the top too. Not anymore, when the pump clicks off, I pull the nozzle out. It’s no fun changing a canister out on a ‘07 Tahoe!! Why can’t they make all those connections the same?!?!
@oldbiker9739 Жыл бұрын
my 2005 s10 blazer wouldn't fill with gas, so I took off both big hoses and took a 5/8'' heater hose and couldn't blow through it , took out the canister cut the top off and pulled out the filters and the charcoal and glued it back together and all is good now ,its just a winter beater.
@WrenchingWithKenny Жыл бұрын
Nice !!!
@johndee68 Жыл бұрын
I guess if the evap purge solenoid hose going to air is removed while monitoring the fuel trims, that'll show if there is an issue caused by the canister if the trims go closer to zero as well.
@anonymuswere11 ай бұрын
that explains what was going on with both a Montero Sport and a CRV I had that wouldn't let me lock on fill at the pump. add that to the 'automatically replace in every used car' list. I've learned more from watching you repair guys vids over the last year...
@ross_ulbright77796 ай бұрын
I was waiting behind a guy at the gas station and he literally spent 5 minutes trying to fill his filler tube to the top. I just sat and wondered how much fuel his purge canister will hold .😂
@WrenchingWithKenny6 ай бұрын
😂😂😂 it is crazy to me! Thanks for watching & keep wrenching 🔧
@bokidori4 ай бұрын
Had a same issue with 2014 Sierra Replaced charcoal canister just like you said The issue and scan codes has gone. Thank you so much
@WrenchingWithKenny4 ай бұрын
Glad I could help. Thanks for watching & keep wrenching 🔧
@hawk66100Ай бұрын
I’m currently having the same codes. P0172 p0175. I’ve changed the fuel injectors, spark plugs, mass air flow sensor but the codes keep coming back.
@holeshot172121 күн бұрын
@@hawk66100clean the throttle body and get new 02 sensors from the auto store not from online with all this fake oarts flying around! Autozone warranty them for 1 year
@jeromyoberpriller1014 Жыл бұрын
My truck has the same problem, I just got a evap canister from a wrecked truck at my school yesterday and hopefully that fixes it.
@WrenchingWithKenny Жыл бұрын
Hopefully it does !!
@loganbente6459 Жыл бұрын
I know in some of the later model year Silverados we see at our dealer if the truck has been under a lean condition for awhile the ECM will interpret it as high alcohol content in the fuel (E85) some models don't use alcohol sensors and the ECM just uses an algorithm to calculate alcohol content. Once the ECM learns the "false higher alcohol content". Any change in temp affecting the lean condition "sealing better" the fuel trims will go rich. I've seen at least 5 cases of this so far.
@davidmorales49152 ай бұрын
What is the fix for something like that?
@garrettfrickel2 күн бұрын
Is this just fixed with a re flash or reset?
@brentowen780 Жыл бұрын
Nice to know what causes this problem, our gas tank clasped before..
@Rodeo32145 Жыл бұрын
Some emissions switches are vacuum controlled. So yes a leak in the vacuum supply to a switch will give you problems.
@donniee1934 Жыл бұрын
My 2011 Ford 6.2 gas The info screen read tighten gas cap. So I stopped and open cap and tighten it. Next day check engine light came on. I hooked up my cheap scanner and the code was for a small vacuum leak. I checked the cap and it was still tight. So I disconnected the wire for the purge valve and it was sucking vacuum. So I checked local parts stores and no one had one (?) So I removed the purge valve to inspect to see if it had dirt holding it open. Clean as could be. So I attached 12v to it and it would not click so I figured it was stuck in the open position. I whacked it down hard on the workbench and then it would click and open and close like it should. So, I put it back on and have had no more codes. That was 6 weeks ago and it's still fine, no codes. I did purchase another valve so I'll have it should the problem come up again.....
@Americadoe7 ай бұрын
Thanks for mentioning the rich code due to vacuum leak issue. I've been working on a 2001 4.6l ford rich at idle. Fuel system is fine. I guess I'll move to check for vacuum leaks.
@TheMajictech13 күн бұрын
The intake gaskets setting rich codes is the map sensor seeing less vacuum. Probably was only rich around closed throttle.
@dereksimenac88445 ай бұрын
Certain models with vacuum leaks will set rich code because the 02 sensors are not the only way to set a code. There is also a code setting criteria for when more fuel is added compared to the amount of measured air. Even if O2 readings are good you can still have the code
@chadbailey189 Жыл бұрын
thank you for video, it's simple in a way I can understand. I'm having same problem. I'm a gear head, but emissions it's a little tuff for me
@dbspecials1200 Жыл бұрын
It might make sense in that the processor is trying to compensate for the vac leak, and in some instances that would be in the form of mixture enrichment, but to an excessive degree (?) 🤔
@JOKERPanda-l9iАй бұрын
My 2015 was doing the same thing. Was told it was the o2 sensors. Replaced them and the MAF sensor. Still didn't fix the problem. Come to find out the high pressure fuel pump under the intake was leaking into the crank case causing the truck to run rich. Finally found the problem because there was gas smell in the oil.
@RamonLFrancisco7 ай бұрын
Great video Kenny! I appreciate you sharing your knowledge!
@terrywilliams68202 ай бұрын
Great video guy.. you do a great job.
@lawrencecavens5760 Жыл бұрын
Another great video Ken. You Are a Great credit to the industry - Like - Eric O/ from South main auto, - Brian { from Fordmakeyouloco Channel } BSM Automotive I think his shop is called, - but any how Keep on teaching as you are doing - It's a great way for those of us to get up to speed and learn new things. Thank You!!!
@robertbragg9364 Жыл бұрын
I have these codes with several more. I changed coil packs plugs O2sensors a MAF sensor. Im gonna try this next. For $90 its worth a shot. I need an echeck ASAP. Hopefully this will work for me too! Thanks.
@youhappyf0o Жыл бұрын
How’d it go
@robertbragg9364 Жыл бұрын
@youhappyf0o didn't fix anything and still don't know what the problem is.
@youhappyf0o Жыл бұрын
@@robertbragg9364 did u try map sensor ? Injectors?
@robertbragg9364 Жыл бұрын
@youhappyf0o MAF Sensor was replaced first. I checked voltage/amps on fuel injectors. The guy that did the read said they were all working properly and in the correct parameters. The alcohol percentage is around %35 and should be between -%10 - +%10. It's dumping extra fuel which is causing the black smoke and loss of acceleration on the highway around 45mph. When i tried pulling a small uhaul trailer my truck had no acceleration on hills and the rpms almost red line if you hold your foot on the pedal and try to not lose your speed and momentum. Then you have to let off when the truck revs out of control. I tried using cruise and that was a nightmare and tried foot driving. I just did a 14 hr trip to Florida and it took me 20 hrs because of the hills. I was only hauling about 2300 pounds. I expected it to take and hr longer but losing 6 hrs on a 14 hr trip isn't right. I just need to find someone near Cleveland, Ohio, who knows what they're doing. I definitely don't know anything when it comes to computers or electronics but I can fix any problem if someone knows the issue. I'll even drive 2 or 3 hrs in any direction I'd someone can help me get the problem fixed. I'm also not looking for anything for free. I'll gladly pay the cost. I have $14,500 in my truck, I own it and it has around 150,000 miles and it's a 2011 with a check engine light. It has 4 codes, some repeat and they're permanent and temporary codes. Dont know how much that matters or helps. I have a 2003 with 250,000 it runs perfect with no check engine light. Only an airbag light. I'm usually good at fixing anything gmc or chevy but this truck has me stumped. If it didn't affect the drivability I wouldn't care but this Is the nicest vehicle I've ever owned and it's one of the worst running I've ever had. I gave up on ford years ago because of electrical issues I couldn't figure out and now this is the first chevy I can't figure out the issues. Any help is greatly appreciated. 🙏🏽
@youhappyf0o Жыл бұрын
@@robertbragg9364 there’s a list I found online about what are the most common issues that caused these two codes. But it’s a lot of diagnostics that I probably cannot do and I don’t want to keep wasting and wasting money to end up in the same situation. Idk what else to do,.. someone said it’s the injectors
@rebdawi2002 Жыл бұрын
Vacuum lake makes total sense, because not enough O2 will mess with the fuel/air ratio.
@jdavis8610 Жыл бұрын
Those charcoal canisters ain’t cheap from what I understand.
@mattreuther3424 Жыл бұрын
I have a 2013 Avalanche, and I’m 95% sure I have this issue. I’m getting the same codes and I have the issues with pumping the gas. Wish I saw those before changing the oxygen sensors.
@nunya8048 Жыл бұрын
My 99 is throughing rich bank 1 and 2 and LTFT IS -10.9 which means its takeing fuel away. Whats messed up on my end is everything is brand new...injectors and complete rail system, throttle body, map sensor, new complete evap system EVERYTHING! Even the entire intake duct. No vaccum leaks etc. STFT bounces 4 to -3.5 both sides...LTFT stays -10.9 unless rev it up and it comes down slightly.
@roderickr35 Жыл бұрын
Check your fuel tank pressure sensor, it will cause all three EVAP ,map, and MAF bad, mine was coming apart, sucking air straight thru
@goldwingconepatterns25654 ай бұрын
I wonder if correcting the overfill situation would the charcoal canister empty out and save changing the canister. At the risk of sounding cheap with that question it is more that I try to avoid wasting something that could be saved.
@rickwidlund3512 Жыл бұрын
Another great video, with knowledge added.
@ThisIS_Insane Жыл бұрын
This was Great!! 👌👌👌
@chevyman6837 Жыл бұрын
The reason why a vacuum leak won’t throw a lean code is because is getting on metered air and it will add more fuel to corrected
@mikem5475 Жыл бұрын
That doesn't make sense. O2 sensor seeing air = lean
@imzjustplayinАй бұрын
@@mikem5475 you only get a lean code if the metered air which is the air that is measured/calculated by the MAF, MAP and Barometric pressure sensors doesn't align with what the oxygen sensors are seeing. Oxygen sensors are really just a feedback loop for fine tuning. If you see a vehicle with large fuel trims +25% -25%, that can only happen because the oxygen sensors aren't agreeing with what the computer is expecting. Ideally the fuel trims should be 0% and that happens when the car's computer is correctly metering the air coming in and injects the appropriate amount of fuel and that fuel is combusted as expected.
@mikem5475Ай бұрын
@@imzjustplayin good information and what I said still stands, vacuum leaks cause lean codes
@perryreasch1209 Жыл бұрын
ANOTHER GREAT VIDEO
@thomask4836 Жыл бұрын
My wife and I have a running bet going on about the name of church where you stop during your test drives. I say it's the Divine Brotherhood of the Torque Wrench. My wife says its the Little Sisters of the Sacred Solus.
@WrenchingWithKenny Жыл бұрын
LOL !! I actually think it may be the Church of Speed !!
@josephmawhinney92808 ай бұрын
Had a truck in the shop today that had this codes as well checked for vacuum leaks checked the purge canister was fine found out the octane level in the gas was to high ran the gas down put lower octane gas in it the codes went away
@emptech8 ай бұрын
If you had the time, could you leave the charcoal canister in a warm area for a while for the gasoline to evaporate and re-use it? With my 2009 Suburban, I normally drive at less than 200 feet above sea level. A while back I was driving into the mountains, over 6000 feet and got an engine check light. The vehicle seemed to run OK, got the error code, rich air/fuel mixture in bank 1 it says. I cleared the code for now, seems to be normal. At 6000 feet should have been a leaner mixture, I suppose if something wasn't working right and the system didn't lean the mixture, it would make sense that it was too rich, right? I'm about to purchase a newer and better code reader, actually a bidirectional one so I can check the solenoids. Should I ignore the codes since they have not come back? I like your down to earth video, you say it like it is. Jim
@boringoldman5 ай бұрын
Why do they make such pain in the butt connectors 🤦🏻♂️
@ericflores574810 ай бұрын
So I have a 2016 Tahoe and started with a P0172 and P0175 can't find the problem and now I'm getting also a P0430. I'm going to follow your instructions and see what happens.
@huttoerik287 ай бұрын
What happened?
@Mustangg16 Жыл бұрын
Wow 2014 and no rust on it
@huttoerik287 ай бұрын
So you're telling me it was not the high pressure fuel pump leading fuel into the engine oil?
@evanhb494 ай бұрын
i unplugged where you checked for a vacuum leak and my was just suckn away. that means i can rule out that 180$ charcoal box?
@manuelcarrillo76076 ай бұрын
Why does the gas tank have all those wet drips all on it and what caused those drips around the tank?
@kevinu29939 ай бұрын
Won't evaporate/dry back out after a bit as long as You're not topping off anymore.?
@ledbetterjack9 ай бұрын
If the carbon pellets haven't disolved into powder
@florenbaron7111 Жыл бұрын
Should this problem cause drivability issues like reduced power, delayed acceleration, low gas mileage, etc?
@hotrod8915 Жыл бұрын
No. He is inventing a problem and pretending to solve it. He is not even checking vacuum to charcoal canister correctly.
@robertjeffery61006 ай бұрын
I tell people all the time at the pump why they shouldn’t be overfilling there tank they look at me like I’m from outer space
@WrenchingWithKenny6 ай бұрын
I do the same thing & get the same reaction! Thanks for watching & keep wrenching 🔧
@1Turnatatime5 ай бұрын
Do you just start the truck after replacing it or do you let it idle before driving, i didnt want to screw anything up just after replacing it
@ericflores5748Ай бұрын
Why I get p0172 p0175 only when I'm parked car on for 15 or 20 min
@thrillbillyjp111 ай бұрын
Ur checking the wrong end of vacs. Checking above on top manifold in closed will show u pull.
@garrydonohoe71696 ай бұрын
Could the computer be over compensating for a lean condition
@BRED238 ай бұрын
Any idea what could be wrong with my 99 5.3 1500 it runs good only on cold start the rpms will drop and it will die once it’s warmed up it runs like normal again
@AZHerps Жыл бұрын
Would a saturated canister cause a real rough idle?
@jliscano54 ай бұрын
I have a 2010 silverado with a 6.0 engine swap power on 65 psi fuel running drops to 40 psi
@WrenchingWithKenny4 ай бұрын
Is it direct injected EFT? Or old school EFI?
@marksmith78968 ай бұрын
Like !!!!!!
@sandravela2760 Жыл бұрын
where did you get the canister
@esperformance2308 Жыл бұрын
Would this also cause the computer to calculate a higher mpg?
@jeffreysmall5259 Жыл бұрын
Me too.
@stephenrickstrew7237 Жыл бұрын
Tales From…. The Go Figure Zone …
@rickycrowe7702 Жыл бұрын
If your sucking air in the seal down below the m.a.s. And it reads more air at the 02 sensor it will dump More fuel to compensate.
@Fran-yg4jp11 ай бұрын
Could this happen on a 2013 Chevy avalanche ? 5.3
@elgordosabroso72 Жыл бұрын
Where are you located in North Carolina
@WrenchingWithKenny Жыл бұрын
Currently in Shallotte.
@martintopete9188 Жыл бұрын
Hey good info here, but does this also go with the 07 classic Silverado? I’m having those codes come on but im thinking it’s the charcoal canister , having issues filling up the tank when pumping gas and smells alot when truck is on
@1Turnatatime5 ай бұрын
I have a 2012 sierra, I just replaced my canister, I thought it was the filler neck since it was rusted, I haven't driven yet but I had similar symptoms. My mpg was terrible, I had almost 3/4 of a tank and by the time I got home it was down to a quarter and my drive was only 35 miles. I would smell fuel stepping out the truck and sometimes walking up to the truck. The canister did kind of smell like fuel and the lines. Change it out and see. I remember the past few times before I would fill up and top off thinking I was getting more gas but it seemed to backfire on me lol good luck
@oldbiker9739 Жыл бұрын
people stop pulling the trigger when filling up its not a gun its a nozzle, lol
@WrenchingWithKenny Жыл бұрын
You are absolutely right !!
@maxmohr7860 Жыл бұрын
What about a p0701 running rich in bank 1
@agger8388 ай бұрын
That u shape clip u just press on to disconnect
@shinigami117s8 Жыл бұрын
So wouldn’t it eventually suck all the fuel out of the canister?
@kellismith43299 ай бұрын
Actually the charcoal will break down and will be drawn into the lines
@williepotts2185 Жыл бұрын
Dust is the problem.
@bwagenberg Жыл бұрын
Why WD instead if silicone spray?
@ross_ulbright77796 ай бұрын
WD smells better. It's like cologne for your car.😂
@carlosvteck5 ай бұрын
❤❤❤❤p
@nunya8048 Жыл бұрын
Those -8 and -5 are bad numbers. They should be close to zero as possible. STFT should bounce between +3 to -3 or constant to zero as possible. Your problem is still there
@michaelmessano3033 Жыл бұрын
My corvette will run rich as pig (Ls3) when NPP IS OPEN on exhaust valves. That is the ECM COMPENSATING for lean code
@hotrod8915 Жыл бұрын
Naw. Do a compression test on each cylinder.
@fredyounger58505 ай бұрын
WELL IT SUCKS THE RAW GAS FUMES FROM THE TANK INTO TO ENGINE AND THATS WARE IT GETS THESE RITH SMELLS FROM TOO
@johndee68 Жыл бұрын
I guess if the evap purge solenoid hose going to air is removed while monitoring the fuel trims, that'll show if there is an issue caused by the canister if the trims go closer to zero as well.