Quote:
Originally Posted by ermax
I know nothing about how the AT works so excuse my ignorance. I am guessing they use vacuum to shift and can't rely on the vacuum generated by the engine because under load the vacuum is too low to shift which would necessitate a dedicated pump. So are you saying the pump is creating a vacuum on the same system as the rest of the car?
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It's even dumber than that. It's connected between the brake booster and intake manifold to stabilize the vacuum some driving situations. I couldn't really figure it out from the descriptions in the service and what's-new manuals.