Seafoaming a 2004 and 2008 Pontiac Grand Prix

Travis's Grand Prix always smokes more than mine. One thing i noticed is that every 3800 engine I've done, the smoke is minimal to nonexistent.

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Seafoam 2004 Pontiac Grand Prix GTP (supercharged)
Odometer reading at the time of this procedure was just over 88k. On GM's 3800 s/c V6 you DO NOT suck Seafoam through the brake Boost vac hose. SF may damage the Teflon coated s/c rotors. Instead, discount the vacuum line directly beneath he s/c snout. Once you remove the tube/line you'll see a metal fitting going into the engine. Just attach another tube to it so that you can have the running engine drink the SF.





2004 Pontiac Grand Prix GTP Supercharged
2004 Pontiac Grand Prix GTP Supercharged, Exhaust, 181k miles still in great shape





2004 Grand Prix Turbo
turbo Grand Prix flyby and races





2008 Pontiac Grand Prix Transmission Flutter?
Have a question on my 2008 Pontiac Grand Prix and I want to know if anyone else has had this issue. It seems like the transmission will do this slight "flutter" in between shifts once in a while, mostly at higher speeds or when wanting to kick it into a "passing" gear. Fluid and filter I believe are still factory, so I don't know if that could correct it, or is there another issue? Hopefully not. Saw a video of a Pontiac Grand Am that does the same thing. Any feedback, let me know. Thank you! Grand Am video : http://www.youtube.com/watch?v=4gW4iOl9-8A




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