Chrysler Vehicles: Codes P0455 P0456 EVAP Leaks?
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Date: 2020-08-05
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Comments and reviews: 10
mdcorman
here is an odd one. 2009 honda odyssey. New battery. drained within hours of installing. Called me and I checked battery and it showed 20. 34 volts. Asked how old battery was said bought it yesterday. Checked to see if he got voltage after jumping it. It showed no increase in voltage stayed at 12. 47. Alternator needs replacing. Checked it too and it showed no increase when reved. Here is the funny part. Multimeter on battery and it showed battery at 12. 47 charged. when he opened the door to get in the voltage went down to 10. by just opening the driver door. closed the door and battery charge started to go up. Parasitic sraw somehwhere and it is bad. so we have NEW BATTERY. bad ATERNATOR. Went to do a probe light on the engine compartment fuses and only 2 fuses (the grey ones showed faint power going to them with key on. all the other fuses didn't show any power with and without key on. Now I am a DYI guy and I told him its beyong my paygrade to determine what is causing the draw. Could be Anti theft or even a bad ECM. I told him to find a guy he can trust that has a diagnotistic tool to tell you whats wrong ( AND THEY ARE FAR AND FEW around here. throw parts at it and hope for the best while draining your wallet) I amd stumped thinking ANTI THEFT but with no power going to the fuse bax except for 2 grey fuses and being weak I am thinking something else. Fuse Box bad? Alternator definitely. but draining battery when you open door and charge come up and stops at 10. 47 to 11 max. there is a bad wire somewhere.
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here is an odd one. 2009 honda odyssey. New battery. drained within hours of installing. Called me and I checked battery and it showed 20. 34 volts. Asked how old battery was said bought it yesterday. Checked to see if he got voltage after jumping it. It showed no increase in voltage stayed at 12. 47. Alternator needs replacing. Checked it too and it showed no increase when reved. Here is the funny part. Multimeter on battery and it showed battery at 12. 47 charged. when he opened the door to get in the voltage went down to 10. by just opening the driver door. closed the door and battery charge started to go up. Parasitic sraw somehwhere and it is bad. so we have NEW BATTERY. bad ATERNATOR. Went to do a probe light on the engine compartment fuses and only 2 fuses (the grey ones showed faint power going to them with key on. all the other fuses didn't show any power with and without key on. Now I am a DYI guy and I told him its beyong my paygrade to determine what is causing the draw. Could be Anti theft or even a bad ECM. I told him to find a guy he can trust that has a diagnotistic tool to tell you whats wrong ( AND THEY ARE FAR AND FEW around here. throw parts at it and hope for the best while draining your wallet) I amd stumped thinking ANTI THEFT but with no power going to the fuse bax except for 2 grey fuses and being weak I am thinking something else. Fuse Box bad? Alternator definitely. but draining battery when you open door and charge come up and stops at 10. 47 to 11 max. there is a bad wire somewhere.
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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!
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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!
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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.
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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.
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michael
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.
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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.
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Steven
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.
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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.
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Jeffrey
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.
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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.
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Steve
Consider - My son's Wrangler - I can tell you that two holes in the charcoal canister (at the mounting bosses - apparently the Jeep had landed on something and jammed the canister up against the bottom of the car) will make for a Large Leak!
Fixed it with some Shoo Goo and two big hose clamps!
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Consider - My son's Wrangler - I can tell you that two holes in the charcoal canister (at the mounting bosses - apparently the Jeep had landed on something and jammed the canister up against the bottom of the car) will make for a Large Leak!
Fixed it with some Shoo Goo and two big hose clamps!
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danrandle
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
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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
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autos
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.
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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.
reply
Dunc
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.
reply
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.
reply
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