I am not sure how the V6 is setup exactly so please take these instructions from someone who is assuming a good bit!I would like to do this since I have 64,000 miles on my 2012 3.8 but yet I’m not mechanically savvy so if you can provide pictures or alil more in depth detail explanation that would be great. Thank you for your time
Make sure your engine is fully hot before doing this, at a place where you will be able to FLOOR it after and be ok with the massive amount of smoke that will come out of the car after. In other words, dont do it in your local busy WalMart parking lot or you will look like an idiot.
You will want to look for a vacuum line that feeds right behind the throttle body. So pop off your engine cover and look for the throttle body. If you are not comfortable at this point I say go to the dealer to be safe
Assuming you are, there should be a hose that goes in right behind the throttle body and following that back you should find the purge control valve. You can unhook the electrical connection to that piece, then unhook the hose from the front of that valve (leave it connected to your engine on the other side). Pour 1/2 can at least of Seafoam into a clear glass container
Now the tricky part assuming all is well to this point. You should now be able to balance yourself on the engine with the open end of that hose in one hand and the container with Seafoam in the other. Turn on the vehicle and take the open end of the hose (will have a large amount of suction so be ready) and bring it close to the Seafoam liquid. The engine will suck it in and you have to try to keep it steady with the goal of as fast as possible without causing the engine to stall. When done with the Seafoam turn the car of immediately then let it sit for 5 -10 minutes. Meanwhile put the hose back on and reconnect the purge valve.
Then fire the car up (it may shudder a bit) and immediately get on a highway on ramp or something like that and enjoy the smoke out the tailpipes. Then enjoy the smooth running engine after.