direct injection fail
if you have never seafoamed before you might actually use a whole can or so. if you have some miles and have never done it before you probably wanna add seafoam to the engine oil a couple days before you plan to change the oil and you may want to repeat the vacuuming thru the intake till it doesn't smoke any longer
https://www.cobaltss.net/forums/how-...ct-how-255543/
https://www.cobaltss.net/forums/how-...ct-how-255543/
I recommended a Sticky to (hopefully) give new LNF owners a heads up on this issue. The treatment (assuming it works) is easy.
Personally I haven't tried Seafoam yet; I've used Lucas upper cylinder lube thru the port that connects to the vac tank a couple times and also ZMAXX last oil change. I guess the key is finding something that actually works and getting it to the valves.
Personally I haven't tried Seafoam yet; I've used Lucas upper cylinder lube thru the port that connects to the vac tank a couple times and also ZMAXX last oil change. I guess the key is finding something that actually works and getting it to the valves.
Last edited by FRQ FLYR; Aug 29, 2011 at 02:42 AM.
New Member
Joined: 06-30-11
Posts: 134
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From: Waterbury, CT
I agree with changing the plugs, def cruds them up. And doing the oil afterward wouldn't hurt either!
I installed a vacuum tee in the vacuum line right on top of the intake manifold then ran a line off of that. Keep your finger over the line when not sucking in the seafoam and do a lil at a time. I recommend using a clear glass like I mentioned before so you can watch what you are doing. You DON'T want to suck it in quickly or stall out the car IMO. It should take 3-5 mins to suck in 1/3 of the bottle of Seafoam. Let it idle for another 30-60 seconds after and then shut the car off and wait 10 mins. Start it up, idle it for a min then drive normal for a few mins or until the smoke clears up. It will smoke A LOT LOT LOT LOT LOT lol.. This is normal, don't be alarmed. If you Youtube Seafoam you will find some examples of "the show" lol.
I installed a vacuum tee in the vacuum line right on top of the intake manifold then ran a line off of that. Keep your finger over the line when not sucking in the seafoam and do a lil at a time. I recommend using a clear glass like I mentioned before so you can watch what you are doing. You DON'T want to suck it in quickly or stall out the car IMO. It should take 3-5 mins to suck in 1/3 of the bottle of Seafoam. Let it idle for another 30-60 seconds after and then shut the car off and wait 10 mins. Start it up, idle it for a min then drive normal for a few mins or until the smoke clears up. It will smoke A LOT LOT LOT LOT LOT lol.. This is normal, don't be alarmed. If you Youtube Seafoam you will find some examples of "the show" lol.
repeat the process until there is no white smoke coming out of the exhaust. it will work it just may take more than one application
Senior Member
Joined: 12-19-05
Posts: 9,704
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From: Raleigh, NC
it will be happening on EVERYONE with a D/I motors car. It's the same for every D/I motor that I know of actually.
And SEAFOAM works at this... I've done it 2 times now... 12k, and 24k miles.
And SEAFOAM works at this... I've done it 2 times now... 12k, and 24k miles.
