Ohh, seafoam. I discovered the joys of it this year. Half a can into the brake booster line of my 2002 wrx turned it into spy hunter for about 10 minutes burning off the crap. it was really embarrasing pulling out of the neighborhood, and everytime I downshifted the smoke built up even more. The car felt pretty good though. On my Acura I went out to a local park to do it. But that car was not a problem. So little smoke was emitted from the top end flush. Good Acura. 70,000 miles and nice and clean.
Poof, I have a question. For my Subaru (horizontally opposed Boxer engine) with the brake booster pulling off one side of the engine, will it circulate through all of the vacuum passages or will it just clean one side? Some people on my car forum said to use the egr or tps (I forget which), but it is buried under the throttle body and intercooler, and you have to pull the intercooler to get to it. When I cleaned the throttle body, I went through the coolant sensor on top of the throttle body so I could reach the plate and passage. Thanks for your advice.
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