Squeal under wot shift

Discussion in 'V6 3.7L Engine / Mods: Bolt-ons, Exhaust, Tuning' started by V6junkie, Dec 13, 2016.

  1. V6junkie

    V6junkie Well-Known Member

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    So changed my MPT 93prx shift pressure from 15 to 20% and was doing maybe 35 or 40 in sport and floored and when it downshifted I could hear what I thought was a bealt squeal from up front and it's done this from a stop also any ideas or is it tire chirp and I'm being paranoid lol
     
  2. racinreddy

    racinreddy P51 - MUSTANG

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    Dude, I too heard the same most probably belt squeal for engine bay yesterday for the first time, for sure for me its coming from engine bay. :doh: I also wanted to post the same todayvbefore I reach out to MPT. Glad u did but I havent made any changes to shift firmess . Its just the MPT93PRX tune with rev limiter changed to 5000k
     
  3. markbento

    markbento Well-Known Member

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    it would be nice if you were able to get a video of it so we could also hear what you are asking and make an informed statement
     
  4. Pintoracer

    Pintoracer Well-Known Member

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    No mods on my engine and I have serious belt squeal in WOT shifts. Especially in sport mode. It's done it since day one.
     
  5. racinreddy

    racinreddy P51 - MUSTANG

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    hmm.. Thats interesting ... I have observed mine doing today again in sport mode. (PS: i drive only in sports mode)

    Will check today evening in D mode and provide an update
     
  6. chaospiece

    chaospiece Well-Known Member

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    Totally normal. Some techs say it's moisture , we have 100° summers here so no..
    I just told them when the flywheel breaks, I have this issue documented. Lol

    But yeah mine squeals all the time and so do older Ford 3.7 engines.
     
  7. racinreddy

    racinreddy P51 - MUSTANG

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    At WOT in 2 Gear again I heard a bad squel from the engine... some sort of belt slipage ?
     
  8. Pintoracer

    Pintoracer Well-Known Member

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    Mine does it on the WOT 1-2 shift all the time. Only sometimes on the 2-3 shift.
     
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