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Thread: P0174 system too lean bank 2

  1. #31
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    Nov 2006
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    Union City, CA
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    48
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    2,502
    Would this be the correct part number? 3W3Z6C324AA
    2003 Mercury Marauder 300B (Daily Driver)
    1988 LTD Crown Victoria S

  2. #32
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    Nov 2006
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    Union City, CA
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    2,502
    I just unscrew these screws right? Easy plug and play replacement?

    2003 Mercury Marauder 300B (Daily Driver)
    1988 LTD Crown Victoria S

  3. #33
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    Nov 2002
    Location
    St. John, IN
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    45
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    14,251
    The pcv valve unscrews

  4. #34
    Join Date
    Apr 2013
    Location
    Santa Maria,Ca
    Posts
    408
    What Zack said. Don’t unscrew the bolts but the pcv itself unscrews


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    1.1999 P71 stock
    2.2003 Marauder 300A Mods: JLT intake MSD coils SCT livewire TS with custom Mo's tune

  5. #35
    Join Date
    Jun 2015
    Location
    O'Hare IL
    Posts
    283
    Any updates?

    I am currently having the p0174 code, the symptom is rough idle at red lights and it feels like misfires, the engine died one time, when I take off it accelerates rough and then whe it hits somewhere from 25_30 mph it starts accelerating normally no lag. As I am reading I have noticed the the hose in the driver side valve is super loose and old, same for the hose in the passenger side from the valve to the top of the intake.
    I checked rockauto hopping to find those hoses but no luck, does someone knows where to find them or have a part number? Tia
    2003 Mercury Grandma on steroids

  6. #36
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    Aug 2012
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    Kansas City
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    2,951
    OP, didn't you just post this question on Facebook the other day????
    Neil
    2003 Mercury Marauder - DBP/DC
    2003 Mercury Marauder - BLK/DC
    2003 Mercury Marauder - SB/LF
    2004 Mercury Marauder - DTR/LF
    1964 Mercury Marauder - BLK/BLK

  7. #37
    Join Date
    Sep 2005
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    APPLE VALLEY,CA
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    59
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    1,366
    Definitely sounds like you have a vacuum leak. Here is the PCV valve hose 5W7Z-6758-BA. Look under air intake on Tasca Parts for the other hose you need.


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  8. #38
    Join Date
    Jun 2015
    Location
    O'Hare IL
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    283
    Quote Originally Posted by 8UWITH6 View Post
    OP, didn't you just post this question on Facebook the other day????
    No I did not, fb disabled my account permanently for "violating" the community guide lines �� so I'm not on fb no more, well yeah but thats another story.
    2003 Mercury Grandma on steroids

  9. #39
    Join Date
    Jun 2015
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    O'Hare IL
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    Quote Originally Posted by BLACKMARAUDER04 View Post
    Definitely sounds like you have a vacuum leak. Here is the PCV valve hose 5W7Z-6758-BA. Look under air intake on Tasca Parts for the other hose you need.


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    Hey thank you so much!
    2003 Mercury Grandma on steroids

  10. #40
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    Mar 2008
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    Next door to my neighbor
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    P0174 system too lean bank 2

    Quote Originally Posted by GoldPanther View Post
    No I did not, fb disabled my account permanently for "violating" the community guide lines �� so I'm not on fb no more, well yeah but thats another story.
    That happens to a lot of people including myself twice now for no reason whatsoever. There is a few work arounds to get back in..


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    Last edited by justbob; 02-26-2021 at 04:41 PM.
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  11. #41
    Join Date
    Jun 2015
    Location
    O'Hare IL
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    I did a few things and found out that you phone becomes black listed and your phone # too, so to get the fb app and messenger again you need to change your device and phone #. Mhe I'm a 90s kid I can live with no fb. I use fb here and there but I have to access it thru an internet browser which it sucks, is not the same as using the app
    2003 Mercury Grandma on steroids

  12. #42
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    Quote Originally Posted by GoldPanther View Post
    I did a few things and found out that you phone becomes black listed and your phone # too, so to get the fb app and messenger again you need to change your device and phone #. Mhe I'm a 90s kid I can live with no fb. I use fb here and there but I have to access it thru an internet browser which it sucks, is not the same as using the app
    I just noticed you’re near Ohare? I’m in Wheaton, small world. Yeah, being born in ‘73 I would have very little issue adjusting to an entire internet collapse. In fact most of it needs to go away..


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  13. #43
    Join Date
    Jun 2015
    Location
    O'Hare IL
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    283
    Born in the 86 here, not sure if I shall say I'm an 80s kid or a 90s kid. So you're in Wheaton, probably the best suburb in IL, I actually move closer there after my separation, I'm in Addison now so we're even closer. Hope one day I can get to see your car with that huge list on your sig its kind of intimidating to see.
    2003 Mercury Grandma on steroids

  14. #44
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    Aug 2010
    Location
    Southern NJ - Exit 4
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    Quote Originally Posted by GoldPanther View Post
    Any updates?

    I am currently having the p0174 code, the symptom is rough idle at red lights and it feels like misfires, the engine died one time, when I take off it accelerates rough and then whe it hits somewhere from 25_30 mph it starts accelerating normally no lag. As I am reading I have noticed the the hose in the driver side valve is super loose and old, same for the hose in the passenger side from the valve to the top of the intake.
    I checked rockauto hopping to find those hoses but no luck, does someone knows where to find them or have a part number? Tia
    I had a similar problem. Swapped out the COPs, changed the crank sensor still had the miss. I put a bottle of Techron concentrate in a half tank of gas and drove it for a half an hour and the injector cleared.

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    03 Black MM: Trilogy #19, Build Date 04/02/03 #7113
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  15. #45
    Join Date
    Mar 2008
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    Next door to my neighbor
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    Quote Originally Posted by GoldPanther View Post
    Born in the 86 here, not sure if I shall say I'm an 80s kid or a 90s kid. So you're in Wheaton, probably the best suburb in IL, I actually move closer there after my separation, I'm in Addison now so we're even closer. Hope one day I can get to see your car with that huge list on your sig its kind of intimidating to see.
    Oh wow, you are close. She’ll be back on the ground and dusted off in a couple of months ready to hit the streets. We’ll have to meet up.


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

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