The seafoam may have lower the octane from 87 to 85. That would cause detonation. This is what usual happens after you add to much seafoam.

 

Seeing as how I won't be able to change the plugs and stuff tip tommorow, I'm curious to hear about everyone's else's expierence with Sea Foam. Did anyone have the Same problem as me?

 

Well, I don't put anything into the system except what Mopar says. I have never had an experience with Seafoam, but I know lots of people who have used it, and I have never heard of anything like this happening.

But then again...I have never heard of someone using 2 cans of seafoam....It is usually 1 can, 1/3 in tank, 1/3 in intake, 1/3 in crankcase is the way I have heard it used...not 2 full cans...

But, heck at least your engine is really REALLY clean now lol

 

I've seen seafoam work at stopping a ticking motor and I've seen a perfectly good motor develop a tick 2 mins after pouring it in. Once you pour it in everything downstream will get gunked up eg. spark plugs, o2 sensors and the catcon. Seems like doing more harm then good. If a motor has a tick i would use it. That would be the only time i would use it. My neighbor use it all the time, he swears by it. Kind of hit or miss.

 

I used it in my dakota before. Did 1/2 in tank and 1/2 in vacuum lines, I won't ever put it in to the crankcase. After I used it, there was a noticeable difference for the better, and a ton of white smoke...my neighbors were thrilled to see that...
Unfortunately, I've also heard a lot of horror stories about using Seafoam, as well.

 

I use the BG stuff, it does something similar, but they have different additives for each thing. My dad swears by it and they use it on all the city vehicles he works on, even the fire trucks. I also know a lot of people that swear by Seafoam though too.

 

I had used an excessive amount of seafoam on a previous Durango. Not the one I still currently own. I purchased it from a auto wreckers for $500. Anyway! I got it home on an empty tank. I added about 40oz to the gas and drove it to Chevron and top it off all the way. I ran it until the tank was close to empty and filled again without seafoam and I could feel a difference. After the second fill up, I put about 8oz in the intake via the brake booster vac line. I did this while the engine was hot, kept the RPMs at 2000 and poured. Turned the engine off and let it sit for about 15-20 mins, I got in and hit the freeway for about 3-4 miles then came home and did the same thing one more time. I then changed the oil and plugs. The D ran pretty awesome after that. Doing what I did with the Seafoam I would say was VERY excessive! I just wanted to see what it could do. I wouldnt recommending do it either because I think it was a waste of Seafoam. But all and all, there was a great difference in performance and had no knocking or problems with the engine. The truck was sold, I had no intention on keeping it when I did this.

 

Well, I don't think it's Sea Foam that caused the problem but the crap it cleaned out. Especially since I did use alot. The truck just hit the 200k mile mark, so I think what happened would be similar to making an 80 year old man drink a case of Red Bull and telling Tim to go run sprints. If when I change the plugs and the problem is solved I'll use it again in a smaller dose so it's not overkill.

 

[QUOTE=DomsDodgeDingo;2678534]Well, I don't think it's Sea Foam that caused the problem but the crap it cleaned out. Especially since I did use alot. The truck just hit the 200k mile mark, so I think what happened would be similar to making an 80 year old man drink a case of Red Bull and telling Him to go run sprints. If when I change the plugs and the problem is solved I'll use it again in a smaller dose so it's not overkill.

 

Talked to my neighbor, who has poured in this stuff since the 70's. He said it's a two man job, 1 man to pour it in and the 2nd to keep the idle above 2,000 rpm while pouring. he said if the engine stalled when he poured it in or it pooled at the intake then under heavy load, that pool, got pushed in and "hydrolocked?" the engine. He said it is a loud knocking, not a gas ping. He also said use a stethoscope and find out if it's the right head or the left head or the bottom end. He also mentioned that seafoam may have loosed a big chunk of carbon and that is bouncing around in valve covers. He's seen that more then once.
hoping your not screwed bro.