Well, not yet at least. I already made a thread about this in the fluids section, but since few people actually go in there, I decided I would let the rest of the people know what Seafoam has done to my car.

I put half a can of Seafoam in the gas tank, and the other half in the crankcase with the oil, as the directions say to do. I start the car up and the idle is very lumpy and you can feel it in the car very well (I have PR mounts too). If I rev the car while in neutral you can feel the engine vibrating pretty strongly. When I accelerate while driving I feel the same vibration from the engine, and it doesn't feel good. I also never saw any smoke coming from the exhaust.

Yesterday before I put in the Seafoam, Paul and I installed my MEVI, but I doubt that has anything to do with this. Today I decided I would flush out my old oil and put in new Amsoil. Didn't change a thing. Car still idles lumpy and the engine vibrations are still there. I drove with the Seafoam in the oil/gas for about 50 miles. The vibrations haven't gotten any worse or better.

I have to drive to school today which is about 100 miles, and I'm very worried something may happen to the car on the way down. I'm even more worried that there's nothing I can do to fix this problem since I already changed the oil.
What can I do? No CEL has come up yet. Wish me luck

Worst $5 I ever spent...

 

weird. Maybe it broke loose something in the fuel system? Try running the tank low and refilling it as soon as you can...

 

Was the engine hot or cold when you put it in?

 

I think he said it was cold, but he put it in the oil and gas, not in the brake booster... shouldn't matter with those.

 

isnt some also suppost to go into the vaccum line as well? I think when you put it in their, that mainly causes the smoke to come out of the tail, dont think you would get it if you just pust it in the oil and your fuel tank.

this is a scarry tittle though, I've been looking forward to getting some sea foam and using it, but I've heard o2 have gone bad(cause of all the carbon desposit broken free), and now your engine (maybe).

Are you sure its not something with the MEVI? all holes everything was connnected back up again?

 

The engine was warm when I put it in, but not at operating temp. Paul is thinking that the T he put in the FPR vaccum line for the MEVI might be too small, thus possibly effecting fuel pressure and the vaccum system. He might chine in here to add his opinion. I will try and replace that tomorrow and hope for the best, although we didn't notice the engine acting differently while we were testing the Harlan switch before the Seafoam. I'm praying for the best.

 

I believe the car should be running at the normal temp, then pour in the seafoam through crankcase and fuel system, then let sit for about 5-30 minutes depending on how long you want to wait around.

 

ah k. I'd quit the random FUD against SeaFoam, it's done some great stuff for some members... just remember that most people use it in the brake booster line so it works on the induction system, not the crankcase and I dunno if it does much at all in the fuel... (I leave that for Amsoil PI or BG44K)

 

I will apologize for my words when I find out that Seafoam isn't the cause of my problems. Until then....F- Seafoam. I know other people have had great results, but so far I haven't.

 

And on top of all this **** my CEL doesn't work so I can't check the codes.....fukken great!

 

lol. That's the problem with changing too much crap at once. Can't figure out what's causing your problems.

 

no light for the Cel when you start the car?

 

Yeah, I think the bulb is burned out.

 

how much gas was in your gas tank when you put the sea foam in? did you put 1/2 can in and put gas in the engine? if you didn't get gas...then add some gas and see.

how was the idle before you added seafoam?

seafoam is not supposed to go into the brake booster.
it's bascially a carbon cleaner...when the engine is HOT you slowly feed it into the intake manifold while the engine is running...most use the vacume line on the brake booster that leads to the manifold.

 

Yes that is where it is support to go, and I believe once its added their then it will smoke when you reconnect and start up.

You did a much better job deescribing it than I did in my first post.


isnt the brake booster, over by the Brake Fluid? a rubber hose?

(cant picutre it in my head)

 

I seriously douby the sea foam has caused any of your issues. You can run an engine with Karosein (sp?) in the crank case and nothing will happen. (you get a good cleaning) The small amount you put in your gas should also have no effect on mechanical engine properties.

 

Sure it is not a vacuum leak from swapping manifolds?

 

Go to AutoZone to have your codes checked and I also doubt that SeaFoam is causing your probs...

 

I had about 3/4 tank of gas. Yeah, 1/2 in the gas tank, 1/2 in oil. Idle before the Seafoam was rough, but that was because of the PR motor mounts. Now I feel a lot more vibrations, and they feel different than the ones before. The exhaust note at idle reflects the lumpy idle.

No, Paul and I aren't sure it's not a vaccum leak, but we're hoping it is. We had the car running for 10 minutes trying to get the Harlan working (never did) and we didn't notice anything out of the norm. After that I put in the Seafoam and noticed that vibrations. This would lead me to believe that it is the Seafoam causing problems, but hopefully I'll be wrong. If it is a vaccum leak, would it hurt anything to drive 100 miles back to my school? I'm debating wether or not to stay the night here and go to a shop in the morning to see if a new hose will fix this, but I would like to get back to school tonight if a leak won't cause any issues. It drove fine on the highway on the way back from Paul's (40 miles), so I hope nothing is getting any worse....

 

If it drove fine coming back from Paul's house you'll be fine driving it to school, with or without a vacuum leak you'll be fine. You might not get your usual MPG but it should make it to and from school with no problems.

Did you test drive the car after the MEVI was installed, or you just ran the engine for 10 minutes trying to fix the Harlem problem then decided to pour in the Seafoam? If you didn't test drive the car after the MEVI was installed it sure sounds like a vacuum leak.

If the Seafoam did cause your problem it's possible you could have a piece of carbon stuck in your EGR valve. That's a very common problem we come across after performing a fuel injection service on customer cars. Depending on how you're looking at it, it's either a good or bad thing. Good the Seafoam is actually breaking up carbon deposits, bad a piece of carbon is stuck in your EGR causing a rough idle.

I must admit your thread title did catch my attention, because I really wanted to see what this ashole did to blow up his engine using Seafoam

MIKE

 

Yeah, I wanted to get people's attention. We didn't actually drive the car after the MEVI was on and before the Seafoam, but we did let it idle and rev it for about 10 minutes with no noticable problems.

How can I clean my EGR valve? Would some carbon in there also make the engine rough to rev while driving?

 

Slightly ticked me off when I realised it was not the case at all.

 

The EGR has to be removed in order to see if a piece of carbon is stuck in it. It's a no brainer easy job, no special tool or instruction is need. Is the engine running rough at idle and while driving? First you mention while driving back from Paul's house it drove fine, it only idle rough. Is it or is it not running rough while driving hwy speeds? A EGR valve that is stuck open is usually only appearant at idle speeds with a rough idle, but while driving on the hwy it smooth out because that's when the EGR valve normally opens. I say double check you MEVI installation and check for a vacuum leak, I seroiusly doubt the Seafoam caused your problem but I do understand your point of view.

MIKE

 

It runs rough at idle and while driving/accelerating. The reason it feels normal on the highway is because I was cruising, not accelerating. When I rev at idle, or accelerate I feel the engine vibrate a good deal.

 

I highly doubt seafoam caused that, and it is a fairly serious accusation to make against a company. I've never had a problem with seafoam, I can see where people could blow up their engines when they use brake booster lines and such.


Personally I dont think its fair to blame seafoam quite yet, maybe swap out your MEVI or double check vaccum/etc, make sure there aren't any leaks like Mike and the others were saying.


edit: oh and I would say if anything it made your engine hiccup, not explode

 

drive the car today and run the tank empty, then refill with clean 93 octane (or 91 if that's all you can get)..

I would suspect that the stuff in the tank has either caused an injector to get clogged, or it's affecting an already clogged injector's spray pattern enough that the engine isn't running properly.


otherwise, I'm going to make an assumption that you have a problem elsewhere and it's only running on 5 cyls. try pulling one connector at a time off your ignition coils and see if you can narrow it down to which cylinder is not running properly. then you'll be able to figure out more. remember, you DID just do a lot of work on the engine (MEVI = lot of work), and you could have an issue with a fuel injector connector or ignition coil or etc etc etc.

don't cry wolf and blame it on the seafoam before you do your homework. Next time people will be more hesitant to help if it turns out you're a bonehead and you find a connector loose on an injector or coil...

 

It is your EGR valve!!!!! My car did the EXACT same thing you are referring to, and I was also swapping intake manifolds...


I found that my EGR pipe was cloggged with carbon, so I poked it out.. Well some of it fell down the tube to the valve, causing it to stay stuck open. I am willing to bet your EGR valve is stuck open.

 

You guys are right, I shouldn't immediately blame it on the Seafoam, but from my experience, the problem surfaced only after the Seafoam was put in, and wasn't present directly after the MEVI was on. I hope you guys are right that it's the EGR or vacuum.
Just so you know, I obviously didn't think it made my engine explode. It was just to get some attention and get people to read the thread. Don't take it so seriously.

 

I dumped in 2-cans of Seafoam in my gas tank this past weekend. I am half way down the tank and noticed no issue so far. The car does seem to response a little better now than before.

 

this sounds like alot off air getting in somewhere past the MAF sensor . When i put my 00 vi on i forgot to tighten the egr small guide tube. It did what you were saying very badly then . I listened and could hear a sucking sound from the area . Tighneted it up and it took a couple days to run right and it clogged my o 2 's bad.

The pic in my sig was takin that day

 

Thanks for the feedback guys. I'm gonna check it out some time soon.