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Old 07-25-2009, 12:30 AM   #46
4Jenna
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Re: codes P0171, P0174 Lincoln LS V6"

I pulled mine apart tonight, sure enuff my pcv elbow had a hole on the underside large enuff to stick my finger tip in.
The dealer has the new piece, I'm picking it up in the morn, and putting her back together!

Rod thanks again for the advice, and pics!
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Old 07-30-2009, 03:51 AM   #47
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Re: codes P0171, P0174 Lincoln LS V6"

Codes are gone, car runs smooth, and everything is back to normal.

Thanks again Rod!

-Chris
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Old 07-30-2009, 07:29 AM   #48
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Re: codes P0171, P0174 Lincoln LS V6"

Glad to hear all is well!

-Rod
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Old 08-03-2009, 10:07 AM   #49
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Re: codes P0171, P0174 Lincoln LS V6"

Rod, Can you tell me where the PCV is located on the 2005 LS6. It looks to me as though it's actually connected to the Upper Intake Manifold at the end of the PCV Hose on the drivers side. Is this correct? Could they have actually made it easier in the 05 model, since they made it so difficult in the earlier versions?
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Old 08-03-2009, 04:04 PM   #50
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Re: codes P0171, P0174 Lincoln LS V6"

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Originally Posted by LincolnLS05 View Post
Rod, Can you tell me where the PCV is located on the 2005 LS6. It looks to me as though it's actually connected to the Upper Intake Manifold at the end of the PCV Hose on the drivers side. Is this correct? Could they have actually made it easier in the 05 model, since they made it so difficult in the earlier versions?
Could be. I only have a 2002 to use as reference, along with the 2002 service manual. My 2004 was a V8 so no PCV there.

-Rod
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Old 08-04-2009, 12:42 PM   #51
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Re: codes P0171, P0174 Lincoln LS V6"

Well, Lincoln actually made their improvement to this model (2005 LS6), as they put the pcv valve on top of the rear upper intake manifold by the driver side. Makes things alot of easier.
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Old 08-05-2009, 08:08 AM   #52
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Re: codes P0171, P0174 Lincoln LS V6"

Well, of course my issue now is, my pcv valve is easy to get at, but the plastic elbow attached to it will not come off. Of course you google pcv elbow for 2005 LS6 and nothing comes up. Seems they try to make it hard for the DIYers to save some cash and try to get you frustrated enough to go to a dealer. Any ideas? Was thinking of trying to find abouther elbow that will fit my pcv valve. Does anyone have any idea of which elbow will fit the PCV1001 from autozone, I believe it's made by Champion. Will the autograde universal rubber vacuum elbows work?
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Old 09-12-2009, 08:47 PM   #53
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Re: codes P0171, P0174 Lincoln LS V6"

I don't want to beat a dead horse here, but thought i would share my experiences with everyone.

Rod provided me with the perfect diagrams on the upper and lower intake manifolds. Pretty straight forward job just way too many connections and vacuum hoses LOL.

Turned out my PCV elbow didn't have a hole in it. It had been weakened to the point it basically caved in on itself. Runs great now.

Thanks ROD..
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Old 09-21-2009, 01:35 PM   #54
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Re: codes P0171, P0174 Lincoln LS V6"

hey rod hows it going am having the same problem with my 01 ls v6 am getting the po174 system to lean bank2, and po411 secondary air injection system incorrect flow any help from you that i can use kuz these reciision go me a little tight on the wallet thank you heres my email str8balling@sbcglobal.net
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Old 09-22-2009, 07:20 AM   #55
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Re: codes P0171, P0174 Lincoln LS V6"

The details on changing out the PCV elbow should be in your inbox. As for the P0411 code, try searching the forum for details on that. You'll want to use a 'zero' rather than an 'o' in the code number. I seem to recall someone posting with a secondary air ignition issue, don't recall if they ever got it fixed though.

-Rod
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Old 10-02-2009, 10:33 AM   #56
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Re: codes P0171, P0174 Lincoln LS V6"

hi i finished changing the pcv elbow which was the fault because it was like melted and fused together in the middle. car ran good for a whole day, now second day its cutting off in same manner after idling for 5 min and cutting off while driving after a few mins (dis didnt happen before, it only cut off at idle) although this time it doesnt give me error codes. is it the hose again, i just put in a brand new pcv elbow, any help is greatly appreciated, please HELP!!!!!!
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Old 10-02-2009, 02:47 PM   #57
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Re: codes P0171, P0174 Lincoln LS V6"

That's a bummer! Did you happen to pull the coils and plugs while in there and check for signs of oil? I wouldn't expect it to be the elbow again, but it wouldn't surprise me if you have oil on the coils or a loose connection of one of the vacuum lines or intake air tubing. Did you get the vacuum connection for the DPFE vacuum regulator connected well behind the intake?

-Rod
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Old 10-02-2009, 05:19 PM   #58
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Re: codes P0171, P0174 Lincoln LS V6"

yeah everything went back good, i check the plugs as well and there was no oil in the wells, its seems like the problem is similar to before but no check engine light, perhaps the seals on the intakes need to be changed???? this is so frustrating, thanks for help
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Old 10-02-2009, 08:50 PM   #59
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Re: codes P0171, P0174 Lincoln LS V6"

Did you maybe crack one of the vacuum hoses while replacing the solenoid? Did you work on anything else while replacing the solenoid?

-Rod
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Old 10-03-2009, 10:08 AM   #60
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Re: codes P0171, P0174 Lincoln LS V6"

nah, actually im having a feeling that the pcv was not at fault all along, in this post, everyone said the pcv elbow had a hole in it, well mine had melted in the middle thus blocking off air flow, so im not sure if its the same thing, the problem of cutting off when idle is still there but now no check engine light comes on with P0171or P0174, do u think it might be egr or idle controller, thanks
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