Chrysler Vehicles: Codes P0455 P0456 EVAP Leaks?

In this video I have a look at a 2005 Dodge Grand Caravan that cam e in with a code for a small and a large EVAP leak with codes P0455 and P0456. Now if you throw a smoke machine on this you will see there is no leaks. So why does the natural vacuum leak detection system think there is a leak? -Enjoy!
Go tell Mike B. @NGK that Eric O. sent ya! • EVAP - Chrysler / Dodg...
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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.

[@SouthMainAuto]

Go tell Mike B. @NGK that Eric O. sent ya! kzbin.info/www/bejne/oWWwe2uwrpilla8

[@jasonfoster8871]

I wondered if you followed him. I just found him from ngk/wells for my education

[@satamanschmidt3428]

He's competent and a nice guy. I met him in Chicago as he was staying at the Fairmont Hotel, as I was, for the first Automechanika. Sadly, however, I go to sleep when I watch his videos.

[@mikephelps8212]

@Mike B Eric O. sent me regardless

[@GoTechTraining]

Thanks for sending people my way Eric O!!! Appreciate it a ton!

[@SouthMainAuto]

@@GoTechTraining when you recognize that somebody does something way better then you, you send people that direction. In my opinion you folks have the best training classes on KZbin!

[@dunckeroo1987]

He who can turn madness into a method should be well celebrated. Best of all is showing methods of trouble shooting; the starting points or what to tackle first and how to work one's way through the complex technology that has become the modern automobile. Great stuff.

[@knobrush]

My father's 2003 Town & country had the same codes. I did a quick visual inspection and found the hoses attached to the purge solenoid were brittle/cracked. I also checked the gas cap and the o-ring on the cap was brittle too. $2 worth of vacuum hose and an $18 gas cap fixed it.

[@steverandall5814]

Another clearly explained diagnostic video. You have a gift for simplifying the complicated so anyone can understand it. Thanks for doing these videos...keep 'em coming!

[@stevenrice47]

I'm a moper man. I've owned 17 Chrysler in my lifetime with 9 currently owned between my dad an I. Every modern Mopar I ever owned have had an issue with the purge valve. The issue with them is cheaply design solenoid will bind in the housing due to gunk build up. They can be cleaned with brake cleaner but that will only last for a few weeks. Since the valve is just $25 bucks pop, it's best to just replace it with a better designed aftermarket unit.

[@SoCalSlaughter]

Love all your videos. Been binge watching all of them. I enjoy more the diagnostic side instead of just parts changing or How-to just change parts. I own 5 vehicles, so Im always working on them on the weekends. Watching your stuff has shown me new ways of finding problems. Example, I have a 90' Suburban and its had a O2 sensor code on and off for years. Before I'd just change the sensors out. But this time I broke out the ohm meter and found the ground was pulling 1.7ohm at the ECM and causing the light to trip. I fixed the ground, now reading .2 and the light has been back. Thanks for all the great content!!

[@livalittle100]

Thank you for making these videos. Most of us like all the kinds of videos you make, circuit diag to engine swaps, We love it all!

[@stu110213]

Hey Eric! Keep up the great work love your videos!

[@jamesterrill1938]

YOU always explain these problems and fix very well....

[@jeffryblackmon4846]

Very well explained. Thank you, Eric.

[@mericafreedomland3583]

Been watching all of these videos just back to back, I just to wrench and stopped because of the politics in dealers but this channel is 100% making get back into it and make sourcing a problem fun again!! Thank you

[@mikechiodetti6737]

Thankyou for that quick description and quick diagnose.

[@CubasAutomotive]

Always makes my day when an SMA video comes out! Turns a crappy day into a more pleasant one. Well explained. I know you've had a similar analogy with the gas can in a past vid. Hahaha and Vinny coming through seeing who you're talking to again. 😅😂😂

[@CubasAutomotive]

Love Mike Becker's vids! He's an awesome instructor. I'm sure he'll appreciate the shout-out!

[@richjacobs9736]

You're a good teacher you make things simple so people can understand

[@billyyoder8171]

Thank you Eric. Good job. Have a blessed and safe week.

[@photoshopman1972]

Thank you for posting that link and for your vid. Even though my vehicle isn’t a van but I’ve been plagued with the EVAP codes for a while. Hard to really see sometimes what’s happening without a good scan tool. Thanks again for this “quick tip”. I’ll give it a try on the Jeep from Hell at the beginning of the week.

[@arthurfricchione8119]

Thanks for the tip Eric O. Will definitely check out his video and tell him SMA sent me.Have a good weekend 👍

[@edgerrr]

Checking the easy thing first paid off for me and my 2015 Dodge Charger (with the mid 5.7) where I could tell the purge valve was open by simply using my finger (while the engine was running of course). Banged the valve on the manifold a few times thinking the solenoid assembly might be stuck, sprayed a tiny bit of WD-40 in there and when I started the engine again, no vacuum! Keep up the good work Eric and Co.

[@adamtrombino106]

I had a Caravan come in last week with the same codes. Previous shop put in an ldp, replaced most of the rubber hoses, fuel cap and neck, and were looking at the tank or canister next. Total parts cannon. And just as you showed, the purge valve was the problem. It took time but it would intermittently internally leak vac when commanded off. To the shop's credit, they did smoke it and found nothing. I used a simple Mighty Vac with a gauge on the output port, and sometimes after about 5 mins the purge would start to leak down. Sometimes it wouldn't. It seemed to depend on how much vac I applied. 14-16 it would hold all day ( ok, I exaggerate, but for an hr) but above that it couldn't. IMO I would not use aftermarket purge valves on these systems. They just don't last. Buy the Chrysler OEM.

[@josetheweirdo]

Literally just replaced my Purge Valve/Solenoid this morning!

[@BigDog50001]

Excellent tip Eric!

[@BigDaddy_MRI]

You were the first channel I supported on the Patriots thing. Or Patreon thing. Anyway, love your videos. 👍👍 Best teacher ever!!

[@BoerGuy]

Clear, concise, well explained. Just WOW!

[@RangleRiot]

Thanks for putting this together...solved my issue on an '08 Caliber. Total cost: $11.00 from junkyard.

[@stevemazzarella9259]

I’m a diesel guy and I struggle with evap systems , great explanation ty!!

[@boaterbil]

1st thing I check on anything Purge valve love your videos Eric and company

[@michaelgaluszka6178]

Your video's are awesome and a great help for the backyard mechanic

[@oldtree218]

'O family produces some of the better videos on KZbin. Love "day in the shop". Thanks!

[@baxrok2.]

Well done sir. Thanks Dr. O!

[@2405jacko]

Great explanation, Eric, as always. You should become a teacher. There's something the way you explain things. Love it.

[@wyattoneable]

These are great. Your explanation was perfect. Oh yeah, Mike kicks butt over there.

[@AntonioClaudioMichael]

Good diag and quick explanation and demonstration

[@bmaiceman]

Inhance inhance inhance inhance..... IDK why that makes me laugh... Love the video dude. Keep em coming.

[@benjaminstockton3917]

Your awesome there Eric O. Leep up the good work buddy and thanks for the video's

[@PBRTUNED]

Great explanation! Nicely done!

[@cabtogo1]

WOW’ Thanks Buddy That Was The Simplest Explanation I’ve Ever Seen🤙

[@jkunderwood3291]

After changing the CCV filter in a Cummins earlier i am sorely reminded that I much prefer watching you wrench rather than me cuss while hunting an 8mm deep socket. You’re way smarter about vehicles too.

[@michaelstoliker971]

I think Miss Marie wants some camera time. That's why she's stealth-ing into the background shots.

[@CP240sx]

You noticed that too. I am pretty sure it was intentional.

[@63256325N]

Thanks for the video.

[@bobparrell2079]

Thanks, I had ask for you to explain this lvld in an older video. Thx alot again

[@tdhodroid]

Keep the tips coming!

[@atticstattic]

Miss Marie likes to give the boss a WIDE berth when he's talking to himself!

[@atticstattic]

@Dirty Harry or just crazy.....

[@atticstattic]

@Dirty Harry Men do end up pushing lotsa buttons....

[@zappedsparky]

When the boss is a yackin', don't come a knockin' :)

[@normangallant9879]

Very informative

[@danrandle65]

i actually found my evap leak by mistake (sometimes we get lucky). i pulled back a plastic loom thinking it was a mess of wireing and bang there it was. The big tube going to the canister had a hole rubbed in it from a body seam. Wasn't looking for it but found it anyway, lucky me🙌

[@waiting4aliens]

Another class video, with footnotes if we need to go deeper. Thank you.

[@AntonioClaudioMichael]

Great video Eric O

[@angelokoljenovic8715]

Watching from las Vegas Thanks I not mecanic all do I have great respect for the knowledge you are shering

[@isaacray8530]

Two thumbs way up! Thanks for that -

[@bighurk30able]

Nice video buddy seeing any good velvet Buck's

[@jt0mi]

I got these two codes on a 2002 Caravan, come to find out, there was a technical service bulletin on this Leak Detection Pump (along with code p0456). Thank you for the video because parts of these bulletins are not for the average person.

[@TheCowgirlNiamh]

I remember someone else chasing a difficult leak and demonstrated it really well. I think it was Paul Danner? 🤔👍

[@scientist100]

using soapy water at the canister hose with small leak, smoke would not go through such as a small leak...

[@pyro323]

I used to work at a ski resort and my boss at the time overfilled his Chevy 2500 and since then it wouldn't take only a few pennies worth of fuel. What happened when he over filled his gas tank was the fuel ended up flowing into an evap solenoid (on the back of the gas tank) and blocking it from opening so air couldn't escape when filling the tank. Once the solenoid was replaced he could fill up his tank again.

[@SmittySmithsonite]

At least Chryslers fail predictably. 😁 Great info, Eric. Thanks! 👍👍🍻

[@adventureoflinkmk2]

Super Tip Saturday Dr. O.

[@jdtractorman7445]

Sometimes when purge solenoids go bad it causes an extended crank time after fueling the car with gas because the fuel vapors go into the intake and create an overly rich condition.

[@Blazer02LS]

That happens when they stick wide open, usually. In this case it's more like a tiny leak in the valve.

[@michaelstoliker971]

BTW, fixed the evap leak on my 2002 Dodgy Caravan by replacing the rotten rubber cap on the canister with a plastic cap. If I put the crappy Chinesium rubber caps on they rotted off in a couple months.

[@corykluthe355]

Purge is usually where i go first on all chrysler evap codes. So quick and easy to test to rule out. But most likely source of problem lol

[@gregorykellerman3876]

Hey that's just like my van! Mine was the NVLD itself. It was a PITA to change.

[@drdouglas1000]

Thanks!

[@saadwaheed3912]

you rock mr erick good video

[@nismo2070]

Great video! I used to inspect cars in upstate NY(Plattsburgh) ten years ago and evap failures were a big problem. Especially with all the salt on the roads up there. Of course I could get most of them to pass by clearing the code/codes and running it with a full tank of gas. It would run every monitor except the evap, but would still pass ;)

[@SouthMainAuto]

The only problem with that is you don't fix the car and make zero dollars on a repair and the engine light remains on.... It is similar to people who delete diesels. They only do it because it is easy and they have no idea how to fix them. Don't you think it would be more beneficial to your shop and your customers to just fix the cars the right way?

[@KCautodoctor]

​@@SouthMainAuto @nismo2070 had to move to a state (Oklahoma) where there is absolutely no vehicle safety or emission inspections, since he could not make a living in NY State giving away "repairs" for 1/10th of what it would cost the customer to fix correctly.

[@nismo2070]

@@SouthMainAuto Absolutely! I did that as a last resort for good customers that were strapped for cash. We did end up repairing it properly, just after they got the sticker. Yes, I know it's cheating, but some people just can't afford the repair for months.

[@nismo2070]

@@KCautodoctor I didn't "have" to move anywhere. The cost of living was getting out of hand in NY. My income DOUBLED by doing that and the cost of living is very low here. I make a very HONEST living here as the head tech at a very busy shop. We are very highly rated on all social platforms and have a great BBB rating.

[@KCautodoctor]

@@nismo2070 amazing what happens when you properly charge a customer for the correct repair and not try to "patch it" just so they can get their legally required emissions inspection sticker. You are the one that was bragging about getting around doing a proper repair.

[@invest2win1]

Love it

[@YouCanFixIt]

So In this scenario under mode 6 test it would pass the engine running test but fail the key off test..am I correct In this thinking. Thank you for taking the time to explain knowing how exactly the system operates makes it so much easier to understand.

[@TheStampDoctor]

Wish you were in Arizona. Thank you for the great video. I replaced that and it won’t start, again.

[@throttlebottle5906]

a Chrylser product with an evap leak, who'd have ever guessed that :))

[@beezertwelvewashingbeard8703]

I don't get it.

[@zachwulf6961]

Barry Chrysler’s are total junk.

[@ethelryan257]

@@beezertwelvewashingbeard8703 Some people like to trash Chrysler products. They're wrong, but, heh - it is what it is.

[@beezertwelvewashingbeard8703]

@@zachwulf6961 Why?

[@zachwulf6961]

Barry poor quality

[@jasonlyijnen84]

I have a ? about getting a obd2 scanner/test for a jeep to do mode6 testing. Mostly misfire data. Looking to get one. Not looking for the most expensive one. But not look at a Cheap one. You seem to know alot and use different ones at time. Looking for your valve on them. Keep up with the good videos

[@TimCurry04]

Lol @ "The money light is on" 😂😂😂 that's exactly what it is.

[@williegillie5712]

Add the TIPM to the equation and you got yourself a mighty fine vehicle to drive.

[@jakeaustin9894]

Don't forget Chrysler's infamous bad grounds and poorly located PCMs.

[@michaelblacktree]

_"Enhance, enhance..."_ That's what SHE said! 😜

[@scuba422123]

evap system integrity module esim... works the same an nvld

[@omniken66]

Been driving my van for the last 3 1/2 years with an evap code. Runs and drives perfectly fine. I just turn off the engine light each time.

[@jeffreymurdock8366]

Another common problem on dodge/Chrysler Van's is a evap canister leak code. Those hoses going to the evap canister are held in place by plastic clamps that dry out and become brittle and in the end fail causing a small leak. Cant tell you how many of those I've fixed. I started carrying packs of clamps in assorted sizes just for that reason.

[@huntersutherland4149]

Hey man got a quick question, can you do a video or at least tell me about which headgasket sealer liquid is the best nowadays. My ram 4.7 magnum is on its edge i live in SC and my coldstart has white misty smoke everymorning out of my tailpipe. Any suggestions?

[@rickbaker4571]

Enhanced Tip Saturday

[@felipevargas1176]

You are the beast

[@jefferyeads4361]

Have a 2005 Chrysler Pacifica w/a gross leak throwing a Po 455 code. When inspecting, I found the fuel filler tube leak at tube and inlet tube to the gas tank. I have looked and looked for a video on how to replace the fuel filler tube on said vehicle and can not find one. Do you have a video on how it is removed or can you point me in the direction to get a video on how it is done? Thanks. Ps: Have learned a lot from your videos. Thanks again.

[@PilgrimInProgress]

I'd love to see a video with an interview with Vinnie. Seems like he has some stories to tell.

[@crisprtalk6963]

I don't think he is much of a talker. But would be interesting if he is.

[@cardo1111]

lol. The money light.

[@vlstyles]

Definitely on GMs..Gross leak check the Purge Solenoid. The pintle does not move even though the coil in the solenoid is "good" (there is voltage drop), so the PCM assumes there is a leak because no fumes are drawn into the intake (no vacuum present)

[@Discretesignals]

Some GM models had a purge flow sensor that would detect if there was no purge flow when the purge solenoid was commanded opened. The most important thing is to know the system your troubleshooting. One of the hardest for me is Toyota/Lexus evap systems.

[@kennethstrait6391]

south main auto.so was it the purge control valve?????

[@youtubzer]

Hey just a quick question, I have a 2006 dodge caravan, it is displaying an P0404 (EGR) which was replaced. Would a vacuum issue trigger that code or would it show as 455 and 456? Thanks!

[@Just2362]

You are the man. Why don't you go by Dr. O any more?

[@CubasAutomotive]

He was kind of doing the videos as a joke before, and Dr O is also what he went by in the automotive group he was in. Thought it was a bit overboard going by Dr, and didn't think he is THAT good. That's the short & skinny.

[@danielfrye4965]

I have that code popping up from time to time but that car has the shakes mine also shakes like that and runs lol like it's missing kinda but after tune up still the same. No other code at all only this sometimes

[@ronniemary12399]

When you used the vacuum gauge, you unhooked the bottom hose and placed the vacuum gauge there? Sorry if its a stupid question?

[@rheidtech]

Whoooooaa. Just vut oi neeted!

[@carlosmoreira779]

Hello Avoca!

[@steveg3207]

Hey Vinny!

[@ProductsOfMorticians]

Well, South Main, you failed to mention what you/you tell your customer to do after the new purge valve is installed. The customer may still see an engine light on or may be detected when going to get his inspection sticker (which failed because of the valve/0456 error). What's next to do? What do you tell your customer to do to be able to get the sticker??

[@josephlanguemi]

nice

[@Choralone422]

I have a 2005 Chevy Malibu that occasionally throws code P0445 when I start the car, but only if the gas tank is at 75%, 50% or 25% full. Could the root cause of that be the same as what is described in this video? The only potential fix I've had suggested to me is replacing a sensor that sits on top of the fuel tank which would require the tank to be removed to do so. It doesn't seem to affect anything at all so I've just been clearing that code when it pops up, which isn't too often.

[@kevinl.295]

Great video on the evap system. So the big question - what’s an estimated service to fix this cost? Thanks 🤔

[@p.doetsch6209]

You can do it yourself. Easy. Part is $25.

[@sarahicu2]

I have the 0456 code and a 0072 which ambient temperature code. What do you think it might be the issue

[@ferrumignis]

ESIM Evaporative System Integrity Module

[@michaelgaluszka6178]

Hello Eric, I've been plagued with this po456 for a while now on my 2006 chrysler T&C. Found a broken hose clamp on the charcoal canister. Light went out only to come back on months later .Smoked it and can't find nothing but when I fill this 2006 Chrysler T&C up I got gas leaking out the top of the gas tank sending unit . Could this be where the small evap leak is and if it is why don't I see any smoke coming from there? Hope you or anybody else answers.

[@srigokulnath8507]

From where you get the wiring diagram and working diagram for any make and model while diagnosing is there any specific website or anything else let every body know through your comments sir kindly rply sir😊😊

[@RobertKohut]

Nice!! That sucks.... :-) (vacuum)

[@algothica6207]

Could it be caused by not possibility to gas tank on station? It means, that I have to tank very very slowly reducing fuel pressure from the gun. My car is Chrysler Aspen 2008.

[@davidhollfelder9940]

Purge solenoid .. tick tick .. tick tock

[@caravan1ify]

more brake videos!

[@richardcain7746]

I'm checking the ac for a friend, 2005 dodge grand caravan the ac clutch fuse keeps blowing