install new atx shifter now there is a hissing noise

Discussion in 'Gen 1 & 2 - Emergency Issues - Performance Upgrade' started by theone42, Dec 6, 2009.

  1. theone42

    theone42 New Member

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    I check the vac connected and everything is connected fine. Everything is working fine and its shifts great, just has the noise, any help work be appreciated.

    Thanks,
    Lee

    93 stock SHO Atx
     
  2. SHOMON

    SHOMON 95 MTX Supporting Member

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    The hissing noise is from the automatic e-brake release on the shifter. The only way I know to get rid of it, is to replace the release valve.
     
  3. theone42

    theone42 New Member

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    So its no dangerours? That all i am worried about.

    Thanks,
    Lee
     
  4. tdoughboy37

    tdoughboy37 Member

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    I had the same problem in a 93 I owned. I just plugged the vac lines at the shifter. No more hiss
     
  5. SHOMON

    SHOMON 95 MTX Supporting Member

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    nope should be fine.
     
  6. Shopro93

    Shopro93 New Member

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    hi, sorry to side bust here but where exactly are the lines your refering to? i have a 93 atx 3.2L & will soon have the same problem. Also the overdrive on/off button stoped working. is there a possible fix to it that dosent include replacing the PCM? i had the same problem years ago & only by replacing the PCM did I get rid of the problem.
     
  7. rubydist

    rubydist SHO Master Staff Member Super Moderators

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    I suggest plugging the line rather than allowing it to hiss, because the hiss means you are pulling unfiltered and unmetered air into the engine.
     
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