install new atx shifter now there is a hissing noise

theone42

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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
 

SHOMON

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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.
 

theone42

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

Thanks,
Lee
 

Shopro93

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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
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.
 

rubydist

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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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