Seafoam Injector / Intake Cleaner = GOOD STUFF
Jan 4, 2008 | 05:54 PM
#541
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Joined: Sep 2007
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From: Sweet Home, OR
If by "when I first turn it on" you mean starting it cold, this is normal. Its called fast idle and most all car engines do it in some form or another. If its warmed up and idling at 1000 rpm, it probably needs adjusting of some sort.
Jan 5, 2008 | 07:48 PM
#542
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Joined: Dec 2006
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From: Hudson Valley, NY
i can't believe that people actually buy this stuff. 
yikes.
yikes.
May 2, 2008 | 04:28 PM
#543
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does it have any negative effect on sensors (O2 sensor etc)?
May 2, 2008 | 04:42 PM
#544
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does it have any negative effect on sensors (O2 sensor etc)?
May 2, 2008 | 06:09 PM
#545
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From: merritt island fl
well thats good to hear im going to do it this weekend but ive heard that you need to change the plugs with in the next week or so because of all the grim you sture up is that true or not?
May 3, 2008 | 09:58 AM
#546
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Pour in a about a half bottle (PCV warm engine) having a friend turn it off right at the end. You could do a whole bottle without any harm, but why? I let it sit over night and TRY to start it early morning so it does not freak out the neighbors or I start it at the shop in the spray booth (exhaust fans). I pour the rest of the bottle into the gas tank. If the engine has been really neglected, you might consider doing this a couple of times over a few hundred miles the first time.
Also about every 4K or 5K, I let the tank get down to about a 1/4 and pour a bottle in. All of this I have picked up in the forums here and elsewhere over the years, however most of it probably covered in this thread if you have the hour or two to wade through it.
May 3, 2008 | 10:46 AM
#547
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the only thing I'm affraid of is that last week I've replaced front O2 sensor and now I don't feel like screwing it up and spending another $$$ 
my truck has over 126000 miles and never had such a thing performed on it so I would imagine a lot of junk will go thru O2 sensors and catalytic converter
my truck has over 126000 miles and never had such a thing performed on it so I would imagine a lot of junk will go thru O2 sensors and catalytic converter
May 3, 2008 | 10:53 AM
#548
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Wher is the PCV Valve?
I looked it up and it said it was on the rocker arm? I don't see it...95 4runner 3.0
Thanks
Thanks
May 3, 2008 | 10:55 AM
#549
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Joined: Apr 2007
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Save your money and use diesel fuel for the crankcase and Berrymans injector cleaner for your injectors.
Why do you want to burn oil by pouring it down your intake and risk FU your cat and O2 sendor?
Restoring compression can be done running 1/2 Qt diesel fuel in the crankcase prior to an oil change. Just add it day before the change. It will soften carbon on the rings and make them loose so they can effectively do their job. Stuck rings will happen and will lead to a tear down to hone and replace.
The Berrymans injector is the best I have found for the dollar. The STP and likes in the little bottles never did anything for me. Add one can at half a tank and you will notice a difference.
If you are brave, you can slowly pour water down the vacuum line to choke, but not stall, a hot engine and the carbon will fly out the back without burning any oil. I smoked a neighborhood with white carbon from an old Buick Wagon. Got to be careful not to create a hydraulic lock. Cost: Nothing.
My $0.02
Why do you want to burn oil by pouring it down your intake and risk FU your cat and O2 sendor?
Restoring compression can be done running 1/2 Qt diesel fuel in the crankcase prior to an oil change. Just add it day before the change. It will soften carbon on the rings and make them loose so they can effectively do their job. Stuck rings will happen and will lead to a tear down to hone and replace.
The Berrymans injector is the best I have found for the dollar. The STP and likes in the little bottles never did anything for me. Add one can at half a tank and you will notice a difference.
If you are brave, you can slowly pour water down the vacuum line to choke, but not stall, a hot engine and the carbon will fly out the back without burning any oil. I smoked a neighborhood with white carbon from an old Buick Wagon. Got to be careful not to create a hydraulic lock. Cost: Nothing.
My $0.02
May 3, 2008 | 05:12 PM
#550
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ok, I did it
twice
first time I left it for 1 hour, started the engine (it smoked for about 15-20 minutes), drove 20 miles, pour in 1.5 of the can into the 1/4 of the tank. drove another 10 miles, parked on the driveway with intention to pour in another 1/3 dose of the Sea Foam thru the PCV and leaving it for the night.
when I ended pouring the liquid I had hard time with installing the hose back on (it was dark already) and my engine stalled...
I know that it got to much air, but is it safe now to leave for the next 8 hours, with the Sea Foam inside, the engine that stopped on its own?
twice
first time I left it for 1 hour, started the engine (it smoked for about 15-20 minutes), drove 20 miles, pour in 1.5 of the can into the 1/4 of the tank. drove another 10 miles, parked on the driveway with intention to pour in another 1/3 dose of the Sea Foam thru the PCV and leaving it for the night.
when I ended pouring the liquid I had hard time with installing the hose back on (it was dark already) and my engine stalled...
I know that it got to much air, but is it safe now to leave for the next 8 hours, with the Sea Foam inside, the engine that stopped on its own?
Last edited by osin; May 3, 2008 at 05:15 PM.
May 4, 2008 | 05:18 AM
#552
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From: NJ
I have been adding seafoam 2 my tank at fill-up every other fill 2 clean the injectors.
I hear a cough syrup cup of assitone is more aggressive then seafoam but is ok 2 use. I forget on the cup/gal ratio tho
I hear a cough syrup cup of assitone is more aggressive then seafoam but is ok 2 use. I forget on the cup/gal ratio tho
May 8, 2008 | 06:02 PM
#553
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Jun 25, 2008 | 03:46 AM
#554
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What about only adding Sea Foam to the gas tank.
Is that effective also (ie improve gas mileage)?
Anything to be careful of (ie does that also cause temporary black smoke)?
Is that effective also (ie improve gas mileage)?
Anything to be careful of (ie does that also cause temporary black smoke)?
Jun 26, 2008 | 03:24 AM
#555
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Well, I added Sea Foam last night. I haven't drove it yet but it did one thing worth mentioning. I have a problem w/ the my dashboard monitor reseting after putting gas in (ie the "Range" doesn't reset). But after putting in Sea Foam the computer reset. Not sure if it was the reason but I have never seen it reset before like that. Usually, it reset every 2 or 3 tank fulls but only immediately after filling up. And I did nothing to the engine other than put sea foam in.
Jun 26, 2008 | 10:54 AM
#556
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From: Tulsa, OK
1995 - 4runner - 3.0 - 3vz - Brake Booster location
I have a 1995 4Runner 3.0 3vz engine. Can anyone confirm that the highlighted hose is the appropriate hose to suck seafoam in with? If I can confirm this I will make a step by step with pictures and / or video for anyone with a 3.0 that wants to use the brake booster hose to inject seafoam including the results. I like to be 100% sure when I do anything especially with my yota! 
My 3.whoa haha
closer....
My 3.whoa
hahacloser....
Jun 26, 2008 | 11:29 AM
#557
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From: Morgan Hill, Ca
I agree with your 100% sure policy. Which is why I wouldn't put Seafoam anywhere in my own vehicles.
No K&N filter. No Seafoam. And gas with techron or a upper cyclinder lubricant (very occaisionly) like Lucas.
Then again I've never had a bad injector... or any other signs of dirt/carbon in the system.. on any vehicle.... ever.
Seafoam seems to me... too radical a solution for a problem that I don't have.
No K&N filter. No Seafoam. And gas with techron or a upper cyclinder lubricant (very occaisionly) like Lucas.
Then again I've never had a bad injector... or any other signs of dirt/carbon in the system.. on any vehicle.... ever.
Seafoam seems to me... too radical a solution for a problem that I don't have.
Jun 26, 2008 | 11:40 AM
#558
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Joined: May 2008
Posts: 102
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From: Tulsa, OK
s-s-s-s-s seafoam
I am curious RD. Do you have any mods on your truck or are you more of a stock person?
I don't currently have any problems with my 4runner, I just purchased it and it runs fine. Last time I calc'd my gas mileage I was getting 280+ a tank for 18.5 MPG. (not bad for a 3.0). I have never heard of seafoam and really don't see why it would hurt to do it based on how many people are trying it with 'success'. By success I mean with no negative results. To me if there are no negative results and surely have been positive results then I am likely to try it.
Its always interesting to hear the differing opinions between the 'modders and 'stockers. Glad to hear from ya.
I don't currently have any problems with my 4runner, I just purchased it and it runs fine. Last time I calc'd my gas mileage I was getting 280+ a tank for 18.5 MPG. (not bad for a 3.0). I have never heard of seafoam and really don't see why it would hurt to do it based on how many people are trying it with 'success'. By success I mean with no negative results. To me if there are no negative results and surely have been positive results then I am likely to try it.
Its always interesting to hear the differing opinions between the 'modders and 'stockers. Glad to hear from ya.
I agree with your 100% sure policy. Which is why I wouldn't put Seafoam anywhere in my own vehicles.
No K&N filter. No Seafoam. And gas with techron or a upper cyclinder lubricant (very occaisionly) like Lucas.
Then again I've never had a bad injector... or any other signs of dirt/carbon in the system.. on any vehicle.... ever.
Seafoam seems to me... too radical a solution for a problem that I don't have.
No K&N filter. No Seafoam. And gas with techron or a upper cyclinder lubricant (very occaisionly) like Lucas.
Then again I've never had a bad injector... or any other signs of dirt/carbon in the system.. on any vehicle.... ever.
Seafoam seems to me... too radical a solution for a problem that I don't have.
Jun 26, 2008 | 02:44 PM
#559
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Joined: Sep 2007
Posts: 386
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From: Ft.Lauderdale, FL
Over the last few months, my gas mileage has been dropping off horribly. Last monday when I filled up I got 13.8 around town (I've been getting 15 in town and 16.5 on the highway). That was the last straw - I had to do SOMETHING. I picked up a can of seafoam along with some TB cleaner and did a little late spring cleaning. I poured the seafoam into the PCV hose with the engine running like on the directions. On the first application, I poured it very slow (1/3 can), then shut off the engine (again, like the directions said). Five minutes later when I started it up, it blew more smoke than the batmobile. After all the smoke subsided, I gave it another treatment, but poured a little faster so that it was almost stalling out. (again, 1/3 can). After starting up, it BILLOWED smoke for several minutes, but the engine just PURRED after it was finished. It was the smoothest running toyota engine I've ever seen. While I was at it, I gave the MAF a good bath along with the air filter and the TB.
Well, that got me back up to 17.2 on the highway on our trip to the beach (still not satisfied).
While I was down there, I picked up another two cans of seafoam and put both into my tank at 1/2 full (4X stronger than in the directions). I ran this for about 20 miles or so, then filled up at a cheapie station ($1.69 when everywhere else was $1.86) and got back on the interstate to drive home. I filled back up here in Birmingham, and I ended up getting 18.1 on the ride home. Not too bad. I can't wait to see if it goes up even more with Shell in the tank...
Now on startup, instead of having to hold the key for a sec for the engine to fire, it starts right up with ZERO hesitation. The injectors and intake must have been pretty bad (106k and counting)...
If you do the seafoam treatment, I'd recommend SEVERAL cans so you can give the intake a good cleaning along with the injectors.
Well, that got me back up to 17.2 on the highway on our trip to the beach (still not satisfied).
While I was down there, I picked up another two cans of seafoam and put both into my tank at 1/2 full (4X stronger than in the directions). I ran this for about 20 miles or so, then filled up at a cheapie station ($1.69 when everywhere else was $1.86) and got back on the interstate to drive home. I filled back up here in Birmingham, and I ended up getting 18.1 on the ride home. Not too bad. I can't wait to see if it goes up even more with Shell in the tank...
Now on startup, instead of having to hold the key for a sec for the engine to fire, it starts right up with ZERO hesitation. The injectors and intake must have been pretty bad (106k and counting)...
If you do the seafoam treatment, I'd recommend SEVERAL cans so you can give the intake a good cleaning along with the injectors.
Jun 26, 2008 | 05:00 PM
#560
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Joined: May 2006
Posts: 1,066
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From: Morgan Hill, Ca
I am curious RD. Do you have any mods on your truck or are you more of a stock person?
I don't currently have any problems with my 4runner, I just purchased it and it runs fine. Last time I calc'd my gas mileage I was getting 280+ a tank for 18.5 MPG. (not bad for a 3.0). I have never heard of seafoam and really don't see why it would hurt to do it based on how many people are trying it with 'success'. By success I mean with no negative results. To me if there are no negative results and surely have been positive results then I am likely to try it.
Its always interesting to hear the differing opinions between the 'modders and 'stockers. Glad to hear from ya.
I don't currently have any problems with my 4runner, I just purchased it and it runs fine. Last time I calc'd my gas mileage I was getting 280+ a tank for 18.5 MPG. (not bad for a 3.0). I have never heard of seafoam and really don't see why it would hurt to do it based on how many people are trying it with 'success'. By success I mean with no negative results. To me if there are no negative results and surely have been positive results then I am likely to try it.
Its always interesting to hear the differing opinions between the 'modders and 'stockers. Glad to hear from ya.
I have added a Scangauge II on the Ridge... which confirms that that is where I'm killing my mileage.
As to whether Seafoam works (and does no harm)... granted the stories of positive results. Otoh, at least one (on this site) who used it, lost his engine not once but twice. No reason to suspect the Seafoam... but I do have this visual image of the bearing loads going up dramatically if too much gets injected too quickly.
Also there is the question of persons pushing a product on all of these sites. Many of the glowing stories are from people falling prey to the hype... and claiming anecdotal results which make their expenditure "right".
Thirdly, if the inclusion of any of these products was a significant benefit, they'd include these in the gas at the pump... such as Chevron's techron.
And lastly, my own experience says the "cures" have never been needed on my vehicles. I've got a lot of vehicles, some with as much as 300K+ miles.
For what they are worth, those are my "reasons".
