Vibration when idling 1998 V70 Base

Post by **MadeInJapan** » 23 Dec 2008, 04:52

No, the best place is not through the brake booster line, but through one of the lines on the vacuum tree- right under the throttle cover. You put it in a container (about 1/3 of the can) and allow it to be drawn or sucked into the intake- not poured either. I don't know why there is a lot of false information about pouring it into the brake booster. Anyway, this should be done on an engine that is warmed up, then after 1/3 of the can is sucked in, you let the engine die (it usually stalls) or you just cut the engine, then wait for 15~20 minutes. When you restart the car, there is an awful smoke bomb from the exhaust (all the carbon being burned out), so you drive it until the smoke is gone- and feel the difference!

sysdcm · Post by **sysdcm** » 23 Dec 2008, 09:05

One can was suck into the vacuum tree a 1/3 of a can at a time. The other can was put into a full tank of gas in the gas tank to clean the injectors. I used the method on the Seafoam website. I did not put any in the oil. I changed the oil after the treatment anyway just in case some seeped by the rings.

Post by **JRL** » 23 Dec 2008, 09:29

sysdcm wrote:One can was suck into the vacuum tree a 1/3 of a can at a time. The other can was put into a full tank of gas in the gas tank to clean the injectors. I used the method on the Seafoam website. I did not put any in the oil. I changed the oil after the treatment anyway just in case some seeped by the rings.

Well, that was wrong and you SHOULD have put it into the oil.
Then it goes directly to the cylinders.
I had a T5 with two cylinders that after we did a leakdown had 20 in both.
After Seafoaming, I had over 160-165 across the board!

bobsnow100 · Post by **bobsnow100** » 23 Dec 2008, 09:41

Other things you might check
Spark plugs and gaps, spark plug wires, cap, rotor ,
vacuum leak, dirty air filter,bad o2 sensor giving incorrect readings for fuel mamagement .

Post by **tom39** » 23 Dec 2008, 19:53

Pouring it into the brake booster line comes from the Seafoam video. The tech doing the application pours (not sucks) it into that line. I think that is why the misconception is floating around.

TOM G.

StarmanDXE · Post by **StarmanDXE** » 23 Dec 2008, 20:44

sysdcm wrote:One can was suck into the vacuum tree a 1/3 of a can at a time. The other can was put into a full tank of gas in the gas tank to clean the injectors. I used the method on the Seafoam website. I did not put any in the oil. I changed the oil after the treatment anyway just in case some seeped by the rings.

Sounds like you put 1/3 of the can in the intake, burned it off, did another 1/3, burned it off, and then did the last of it. Don't see why that would be so bad. When I did my 850, I did about 1/3 in the fuel, 1/3 in and out of the engine quick and then the next day I did the other 1/3 in the engine, let it sit for a good hour-plus, and then burned it off. Ran so much better after that! Now I want to do my S60, but I haven't found out what/which vacuum hose to use yet...

Post by **MadeInJapan** » 24 Dec 2008, 07:27

When you figure out which hose, please let me know...same setup on my wife's V70....

Post by **Ozark Lee** » 24 Dec 2008, 08:19

Pouring it into the brake booster line comes from the Seafoam video. The tech doing the application pours (not sucks) it into that line. I think that is why the misconception is floating around.

I was trying to figure out what video you were talking about so I googled it - Sure enough, the guy pours it into the booster line.

http://video.google.com/videoplay?docid ... 5726229173

I have had great results using the vacuum tree and slurping it in on the Volvos. On my daughter's Porsche the only place I had to introduce the product was through the brake booster line but I sucked it in rather than pouring it in. That video is setting them up for hydrolock issues and serious engine damage.

...Lee

Post by **MadeInJapan** » 24 Dec 2008, 09:28

Thanks for the video, Lee.
I had not idea about all of the other Seafoam products.
I'm wondering if anyone has used their transmission cleaning product- I would personally be afraid to do so, but if my transmission was on the blinks, I might be tempted to, given that my other option would be a rebuild or a replacement.
The Bug-be-Gone, I was familiar with, but didn't know they were owned by Seafoam- certainly one of the best bug removal and washer fluid additives out there!

Vibration when idling 1998 V70 Base

Re: Vibration when idling 1998 V70 Base