The hose at the intake manifold will have nothing to do with you error code. That connection is after the electronic valve that closes and causes vacuum in the evap system. When the engine is running the valve is open and vacuum from the engine sucks in the fumes. You could disconnect that hose entirely and it would not give you a code. The system is monitored when the engine shuts down that is when possible evap vacuum pressure is lost and an error code is displayed. If I am wrong pleas feel free to correct me. Thanks Glenn
Fixed mine tonight - yeah! Thanks for the video! BTW, I reset the code after adding the hose clamp and it didn't go away until a few mins of driving for some reason.
What year JK is this? I have a 2012 and the purge valve is not located where yours is. And there are no hose clamps connecting rubber hoses to it. There are all plastic hoses with quick connect fittings on them. I heard a common fix is to check a line that rubs on the battery, but none of the lines coming from my purge valve are anywhere near the battery.
truck failed inspection it said # 1 plug. so i changed all the plugs and coils. its still missing at the # 1 plug. will a smoke test show me where the problem is ??
I was wondering if maybe you could do a video on how to make the hose that you use where to hook it and where to hold it on the fog machine? I think it would be rather informative if we seen a step-by-step?
So I just spend 4k fixing my camshaft and it was making that knocking noise! Steve better get that looked it. I got it fixed and no problems but now I have a vacuum leak but from this video, hose clamp problem solved!
This unfortunately can not be the cause of the P0456 code! When the system runs its self test for leaks it CLOSES the purge valve and vent valve simultaneously and checks for pressure drop in the system, which would indicate a leak. Therefore, the hose AFTER the purge valve, going to the intake manifold is not part of the test. It could be completely disconnected and it will not throw a P0456 code. You have another issue causing it. I'm sure by this point you've figured that out when the light came back on. Did you do a follow up video to identify the real problem?
Hello have the same problem I took it to a mechanic and couldn’t find the problem even with the smoke machine so he told me to change the gas cap and I did I put the original and it was ok for about 40 miles. And it came back. He mentioned that could be a computer problem
The hose you repaired would not fix a P0456 code, you would have to smoke test from the purge valve back after putting it in a leak test mode with scan tool
I got a small evap leak, just wondering where do I put the smoke machine tube in a 2007 jeep wrangler jk unlimited. Is it the top or bottom of the purge valve?
I know I could spend a couple grand on the Snapon Truck and purchase their fog machine. But I like yours better looks like it doesn't cost a couple grand
![How to Fix P0456 Engine Code in 3 Minutes [2 DIY Methods / Only $4.44]](http://i.ytimg.com/vi/v_QDSjd1-Lw/mqdefault.jpg)
Check out this Playlist for more Jeep JK DIY Content ruclips.net/p/PLxtlXKgrDXMUC5U503VpKN5K3fYWn8umo
The hose at the intake manifold will have nothing to do with you error code. That connection is after the electronic valve that closes and causes vacuum in the evap system. When the engine is running the valve is open and vacuum from the engine sucks in the fumes. You could disconnect that hose entirely and it would not give you a code. The system is monitored when the engine shuts down that is when possible evap vacuum pressure is lost and an error code is displayed. If I am wrong pleas feel free to correct me.
Thanks
Glenn
Fixed mine tonight - yeah! Thanks for the video! BTW, I reset the code after adding the hose clamp and it didn't go away until a few mins of driving for some reason.
Thanks for posting this, had the same issue on our 2016 JK, put a hose clamp on it and the code is gone, thanks again!
What year JK is this? I have a 2012 and the purge valve is not located where yours is. And there are no hose clamps connecting rubber hoses to it. There are all plastic hoses with quick connect fittings on them. I heard a common fix is to check a line that rubs on the battery, but none of the lines coming from my purge valve are anywhere near the battery.
It has a dual battery set up that is why
Thank you so much for this video! It was a huge help in diagnosing and fixing my check engine light issue.
truck failed inspection it said # 1 plug. so i changed all the plugs and coils. its still missing at the # 1 plug. will a smoke test show me where the problem is ??
Thank you sir! How long did the hose clamp fix hood up for?
Which fluid are you using and size of hose. Thanks
Smoke machine for the win. 👍
I was wondering if maybe you could do a video on how to make the hose that you use where to hook it and where to hold it on the fog machine? I think it would be rather informative if we seen a step-by-step?
Had the same issue on our 2016 JK, put a hose clamp on it and code is gone, Thanks!!!
So I just spend 4k fixing my camshaft and it was making that knocking noise! Steve better get that looked it. I got it fixed and no problems but now I have a vacuum leak but from this video, hose clamp problem solved!
This unfortunately can not be the cause of the P0456 code! When the system runs its self test for leaks it CLOSES the purge valve and vent valve simultaneously and checks for pressure drop in the system, which would indicate a leak. Therefore, the hose AFTER the purge valve, going to the intake manifold is not part of the test. It could be completely disconnected and it will not throw a P0456 code. You have another issue causing it. I'm sure by this point you've figured that out when the light came back on. Did you do a follow up video to identify the real problem?
The problem never came back
Was there gas smell inside the cabin prior to the diagnostic?
Hello have the same problem I took it to a mechanic and couldn’t find the problem even with the smoke machine so he told me to change the gas cap and I did I put the original and it was ok for about 40 miles. And it came back. He mentioned that could be a computer problem
I have a few of them laying around and never thought to try this. Thanks for another good tip Jerry👊
The hose you repaired would not fix a P0456 code, you would have to smoke test from the purge valve back after putting it in a leak test mode with scan tool
Have the same code on my 2016. That line was held on very tight though. Not sure where to look next after checking these three spots you pointed out.
That code can be anything right down to a loser or faulty fuel cap
@@TestDontguess there was a typo. What did you mean by “loser” filter or what?
@@pimpmyride7278 loose?
@@gizzyguzzi I ended up selling it. I bought the new Bronco.
I got a p071 and p074 lean fuel codes on my jk. Any info on how to fix?
Can you still drive with a small leak detection do you know ?
@denisesmith6466 Yes you can.
Man that was an easy fix Jerry...
I got a small evap leak, just wondering where do I put the smoke machine tube in a 2007 jeep wrangler jk unlimited. Is it the top or bottom of the purge valve?
I know I could spend a couple grand on the Snapon Truck and purchase their fog machine. But I like yours better looks like it doesn't cost a couple grand
Whats the link to Steve. I keep listening and it sounds like Homediet4x4?
Great great info and idea for the smoke test!!!
Did this cause any cylinder misfire / weird and random idle surges?
It can depending on how big the leak is
Thank you, fix my issue for under $5.00.
I would love to know how you made or what you used to make your smoker from
video0 has sound
Excellent step thanks for you
Who has a "smoke tester" lying around?
Easy one to figure out.
Definitely not the problem... engine vacuum holds that line on.. thats why they don't clamp them..
You really are as clueless as you look........
Unlock gas cap neep
Fawk. Mine didn’t go away.