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Thread: Front and Main seals

  1. #1
    Bullitt Rowleyxlt619's Avatar
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    May 2007
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    Front and Main seals

    What I thought was the oil pan gasket leaking turned out to be the front crank seal and the rear main seal leaking, and the rear main was replaced in 06 at 11k miles ... what would cause both seals to leak at the same time? car only has 28k miles and isnt a daily driver... just input on if any one has ever seen this before on their 2v 4.6L's
    2003 Ford Mustang GT
    AMAZON GREEN METALLIC, 4.6L, 5spd

    Best quater mile time-12.96 @ 103.45 (4/6/08)
    Best 60' time- 1.71 (4/6/08)

    1993 Ford Mustang GT
    93 Cobra Teal Met. 5.0, 5spd

  2. #2
    Senior Member Rodeheaver's's Avatar
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    a bad pcv valve could cause that easy, maybe some ring blowby or synthetic oil... i have a few customers that said their cars started leaking oil after they started using synthetic oil and after they switched back it slowed the leaks down..
    2015 A6 Mustang GT that so far has gone 9.48@147 but still the fastest prochargerd S550 in the world aside from Tim Essick's!
    www.Rodeheavershotrod.com

  3. #3
    Mustang Guru billyNOTnice's Avatar
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    get some of that rear main stop leak the auto parts store sells... it's gotta work right? lol
    Roll With The Mill Creek Mafia
    709RWHP/750RWTQ


  4. #4
    Bullitt Rowleyxlt619's Avatar
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    haha yeah right i dont believe in that shit... its already in the shop getting worked on....
    2003 Ford Mustang GT
    AMAZON GREEN METALLIC, 4.6L, 5spd

    Best quater mile time-12.96 @ 103.45 (4/6/08)
    Best 60' time- 1.71 (4/6/08)

    1993 Ford Mustang GT
    93 Cobra Teal Met. 5.0, 5spd

  5. #5
    Senior Member 97LaserRed's Avatar
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    Jan 2008
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    I have the same prob wit my rear main. I'm going to replace it when I get my tranny out. I'm running synthetic. Should I switch back?

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