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Incorrect Purge Flow, how to fix?

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Old Feb 23, 2009 | 03:04 PM
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Default Incorrect Purge Flow, how to fix?

Hey guys,

I did multiple searches on here for my engine light code P0411 that came on, and i found out that it was incorrect purge flow.

Just from what i have found in searches, it was either a gas cap issue (my gas cap is on fine) or a cracked line somewhere.

My question is, where am i looking for a cracked line? Im about to go out and take a look but i dont know if i should be checking every line or just certain ones.

Thanks in advance.

2003 Ram 1500 QC w/HEMI
 
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Old Feb 23, 2009 | 03:13 PM
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Start underneath at the cannister, most cracks are found right there where the little hose clamps go on. Then just start tracing them all to the other end. Hopefully, something will stick out at you like a sore thumb...
 
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Old Feb 23, 2009 | 03:15 PM
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This is going to sound bad, but what cannister, just in general?
 
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Old Feb 23, 2009 | 03:33 PM
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It's a cannister under the truck, mounted to the inside of the frame rail, on the passenger side, a little rearward of the seat. It'll have hoses coming from it leading both back to the gas tank and forward. It's these hoses you need to inspect for cracks...
 
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Old Feb 23, 2009 | 04:00 PM
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Are these what im looking for? These are all i can find that go from gas tank back up, but they are on drivers side not passanger..
 
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Old Feb 23, 2009 | 04:57 PM
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yeah thats right...driver side is correct, think ole hammer had a brain fart....yeah just check around and see if you can see/feel any cracks in the line...normally you'd smoke the like and use a blacklight to watch for smoke coming from somewhere but you might be able to find it by looking
 
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Old Feb 23, 2009 | 05:05 PM
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My silverado went through 2 of those. The Evap Purge sensor or whatver it's called. Cheap enough fix. $40 from the dealer for that truck anyways
 
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Old Feb 23, 2009 | 05:11 PM
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You're right, my bad, drivers side. I can't remember what truck I had that had a clogged hose at the canister, charcoal got in it and I had to blow it out, but whatever truck it was, it was on the passenger side (I think).
Here is a pic of the evap system, you can get to all the hoses fairly easily. Shoot if you had to replace them all, I don't think it'd cost more than $30 for the hoses and clamps.

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Stupid govt. and their mandated emissions crap, you take away the damn evap and EGR and you take away 50% of the problems guys have with these trucks...
 

Last edited by HammerZ71; Feb 23, 2009 at 05:16 PM.
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Old Feb 23, 2009 | 06:05 PM
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Originally Posted by HammerZ71
You're right, my bad, drivers side. I can't remember what truck I had that had a clogged hose at the canister, charcoal got in it and I had to blow it out, but whatever truck it was, it was on the passenger side (I think).
Here is a pic of the evap system, you can get to all the hoses fairly easily. Shoot if you had to replace them all, I don't think it'd cost more than $30 for the hoses and clamps.



Stupid govt. and their mandated emissions crap, you take away the damn evap and EGR and you take away 50% of the problems guys have with these trucks...

... and in the case of the new diesels if this egr/evap ****e was gone the trucks would get better power and more mileage I mean sure the 6.7 is ok but it will never be a 5.9 in terms of mileage and tune ability. Look at fords 6.4 diesel hmm my HEMI gets better mileage and that is saying something same with dirtymaxes they are all choked up. Luckily where I live there are no inspections or emissions checks so we can toss all of this junk and not worry anything but still...
 
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Old Feb 23, 2009 | 06:09 PM
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Sadly, I know a lot of guys having major problems with their CTD 6.7s that you NEVER heard of with the 5.9!!!
 
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