1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Transmission Vacum Modulator

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Old Jul 30, 2007 | 04:29 PM
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Default Transmission Vacum Modulator

I pulled my Modulator and I get ATF out of the vacum port, I know this is bad, but my question is how much smke can this cause out the exhaust when accelerating under high vacum conditions.? I have had this smoking issue for some time and I have tried and checked just about everything 2 times and even thought I had corrected it with the EGR replacement. Today it still smokes when you accelerated at a steady 2000 rpm. It is fine while the car is cold and idling. I think this is finally the piece to the puzzle. Any thoughts would be greatly appreciated... THANKS
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Old Jul 30, 2007 | 04:38 PM
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I don't know if/how much smoke it would cause, but you'll be happy to know that modulators are cheap.

But just like any fluid intake, it'* gotta cause some smoke, right? I wouldn't think it could be much if you haven't noticed your tranny fluid disappearing.
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Old Jul 30, 2007 | 04:42 PM
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That could be an oil smoke that you were talking about.
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Old Jul 30, 2007 | 04:43 PM
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I do not know how much tranny fluid it has been using, I did a engine swap and it has been in the garage so I could figure this smoking issue. So I hope this is the problem, regardless , it needs to be changed. Thanks
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