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Thread: Mustang Cobra PPRV Removal Information

  1. #1
    Administrator BurnTire's Avatar
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    Mustang Cobra PPRV Removal Information

    How to remove the PPRV (Hesitation Creator).

    The PPRV is known to cause hesitation issue between shifts in high boost applications.

    Remove the Tank.

    Be sure to disconnect the float arm before pulling the assembly all the way out of the tank. If you don't you will break the arm and or the sending unit.

    When you go to install the new assemble put the float arm in the tank first then drop the assemble in.
    Then re attach the float arm. BE CAREFUL WITH THE FLOAT ARM!!!!! An extra set of hands always helps. Take your time.



    Remove the PPRV and Stock Plastic Hose

    Replace with:

    Carquest stocks the hose part number 27097

    Gates 3/8" x 1' submersible fuel line. $20 a foot.

    or Napa
    Gates SAE30R10 (Gates # 27097), Napa part # H213

    You will need 2 feet of hose. (You will need to trim the hose)

    Get 6 smooth hose clamps and have fun.

    You can reuse the stock Y fitting or buy a new one.

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    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  2. #2
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    I'll be doing this mod in the near future, as well as upgrading the fuel line to the rails and the BAP wiring upgrade.
    Whipple Supercharger w140ax, Billet flow idlers, 3.5 upper, 4lb Metco lower, Pfab IC tank, Accufab throttle body, Jlt Intake, KB Boost-a-pump, Bassani X pipe w/ cats, Bassani cat back, Lakewood 70/30 front struts, Centerforce dual Friction clutch, Fidanza Flywheel, Billet flow irs brace, H&R race springs, Autometer Boost/Fp/Dynojet Wideband Commander, Xcal 2 tuned by Greg@Ret.

  3. #3
    Senior Member 50 BMG's Avatar
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    Yep. First 2 things I'll do when I drop the tank is PPRV removal and anti-siphon removal.

  4. #4
    Senior Member MinGry03's Avatar
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    Great write-up. Mark, PJ-1 and myself will be doing that mod later this spring to my car.
    PJ
    2003 Mineral Grey Cobra


  5. #5
    Senior Member u1arunit's Avatar
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    Best mod to remove the hesitation!

    PJ2 you better start buggin PJ1 to see when he is going to help! lol
    Mark
    Steel City Terminators
    '04 Black Cobra
    663RWHP / 665RWTQ

  6. #6
    Administrator BurnTire's Avatar
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    Quote Originally Posted by u1arunit View Post
    Best mod to remove the hesitation!

    PJ2 you better start buggin PJ1 to see when he is going to help! lol
    Doesn't matter Mark does all the work.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  7. #7
    Senior Member P Machy's Avatar
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    How does the Hesitation feel like?

    I only get an odd hesitation when I dont lift off the clutch fast enough....

  8. #8
    Administrator BurnTire's Avatar
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    If you shift at a normal pace the car will fall on its face for a second between shifts. When you get back into WOT it will hesitate.

    If you start spinning and pedal it the car will shut off for a second.

    If you can shift super fast the hesitation usually does not occur.

    My car was terrible. It was really bad until I removed the PPRV.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  9. #9
    Senior Member P Machy's Avatar
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    Ahhh, OK.

    Is it safe to say that this is an issue with the 04 models only?

    That is the main crowd that I hear it from.

  10. #10
    Administrator BurnTire's Avatar
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    I think it happens with both.
    It seems to occur mostly with 60lb injectors on high boost applications.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

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