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Old 10-21-2012, 10:35 AM
0trbo4myCHEVUICK 0trbo4myCHEVUICK is offline
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plugged vacuum modulator T-400

Im curious as to why the th400 I bought has a plug in the vacuum modulator hole. Also a metal plate bolted over the location. Is this something a shop does to protect for storage or is this a bypass mod? I was on my way to buy a modulator but im also struggling with different options.. I need whatever is best for helping a buick 3.8l v6 operate this trans..
appreciate any thoughts and time, Mike.
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