PCV location/Seafoam treatment on a Lexus?

LSUMatt1514 · 01-21-2005, 09:57 AM

I want to do the same Seafoam treatment on my fiance's Lexus GS300 that I did on my 4Runner, but I don't know where the PCV is located or what it looks like. Are there certain vacuum lines that I could trace to find it? Would I use the same method on her car as our 4Runners? Later.

Matt

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4Crawler · 01-21-2005, 10:19 AM

On my 4Runner (22RE) I just used the vacuum purge line from the charcoal cannister. It was easy to get to, small enough to be able to modulate the uptake of the Seafoam and was at the inlet to the intake. I would think the PCV valve hose would suck on way too much liquid at once and the hose from it to the intake is too short to use anyway.

co4rnr · 02-26-2007, 06:40 PM

Quote:

Originally Posted by 4Crawler

On my 4Runner (22RE) I just used the vacuum purge line from the charcoal cannister. It was easy to get to, small enough to be able to modulate the uptake of the Seafoam and was at the inlet to the intake. I would think the PCV valve hose would suck on way too much liquid at once and the hose from it to the intake is too short to use anyway.

I am a newb, what line exactly did you use on your purge line? I would like to do the treatment to my 4Runner(22RE).

4Crawler · 02-26-2007, 07:08 PM

Um, like the purge line is the purge line, denoted with a "P" on the throttle body and I added a "P" on the other end at the charcoal cannister:
- http://www.4crawler.com/4x4/CheapTri...ne_Pix/19.html

profuse007 · 02-26-2007, 11:09 PM

use the brake booster hose.

MTL_4runner · 02-27-2007, 05:52 AM

You don't need to use the PCV hose only, any vacuum hose going directly to the intake will work fine (the closer to the throttle body, the better......just make sure it is after the throttle plate). Just pull off an intake vacuum line with the engine running and if you put a finger over it and feel vacuum, you can use it.

Remember to run some in the gastank first and then into the engine after (running 1 can per 1/4 tank of gas minimizes any possible fouling issues.....try to run at least 2 cans in 1/2 tank of gas through before putting it directly into the engine).

4Crawler · 02-27-2007, 08:02 AM

Two reasons I chose not to use the PCV hose was #1 it is too short to fit into the can and #2 it would be too hard to control the flow of the Seafoam, since it such a large diameter tube. I even found the small 3mm ID purge line would suck in too much Seafoam at a time unless I regulated the flow.

mkgarrison5 · 02-27-2007, 08:18 AM

Quote:

Originally Posted by 4Crawler

Two reasons I chose not to use the PCV hose was #1 it is too short to fit into the can and #2 it would be too hard to control the flow of the Seafoam, since it such a large diameter tube. I even found the small 3mm ID purge line would suck in too much Seafoam at a time unless I regulated the flow.

you dont stick any vacuum hose in the seafoam! you tilt the can of seafoam and let the vacuum hose suck it out that way and have a rag for it bc it can get messy.. but dont stick the hose in the can

gpcollen1 · 02-27-2007, 08:39 AM

I just stuck a funnel in the PCV hose and poured it in at a drizzle - pretty simple.

01-21-2005, 10:19 AM	#2 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,775	On my 4Runner (22RE) I just used the vacuum purge line from the charcoal cannister. It was easy to get to, small enough to be able to modulate the uptake of the Seafoam and was at the inlet to the intake. I would think the PCV valve hose would suck on way too much liquid at once and the hose from it to the intake is too short to use anyway. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

02-26-2007, 07:08 PM	#4 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,775	Um, like the purge line is the purge line, denoted with a "P" on the throttle body and I added a "P" on the other end at the charcoal cannister: - http://www.4crawler.com/4x4/CheapTri...ne_Pix/19.html __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

02-26-2007, 11:09 PM	#5 (permalink)
profuse007 Registered User Join Date: Apr 2006 Location: TX Posts: 393	use the brake booster hose. __________________ Tran, oO 4runner - Millenium Silver WTB: 01-02 4runner right(pass.) taillight .,~??▼.,~??▼.,~??▼ WTB: Hood wind deflector

02-27-2007, 05:52 AM	#6 (permalink)
MTL_4runner Contributing Member Join Date: Jul 2003 Location: Montreal, QC Canada Posts: 8,807	You don't need to use the PCV hose only, any vacuum hose going directly to the intake will work fine (the closer to the throttle body, the better......just make sure it is after the throttle plate). Just pull off an intake vacuum line with the engine running and if you put a finger over it and feel vacuum, you can use it. Remember to run some in the gastank first and then into the engine after (running 1 can per 1/4 tank of gas minimizes any possible fouling issues.....try to run at least 2 cans in 1/2 tank of gas through before putting it directly into the engine). __________________ - Jamie 1996 4Runner SR5 4X4 Auto Deckplate Mod, Hayden Tranny Cooler, Amsoil Air Filter, OME 881/906 N86C/N91SC Lift Best OBD II scan tool I have used!. .....and I am AMERICAN! Last edited by MTL_4runner; 02-27-2007 at 05:55 AM.

02-27-2007, 08:02 AM	#7 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,775	Two reasons I chose not to use the PCV hose was #1 it is too short to fit into the can and #2 it would be too hard to control the flow of the Seafoam, since it such a large diameter tube. I even found the small 3mm ID purge line would suck in too much Seafoam at a time unless I regulated the flow. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club

02-27-2007, 08:39 AM	#9 (permalink)
gpcollen1 Registered User Join Date: Mar 2006 Location: Connecticut (NY State of Mind) Posts: 395	I just stuck a funnel in the PCV hose and poured it in at a drizzle - pretty simple. __________________ '99 SR5 Sport - Desert Dune: AirRaid MIT, OEM Air Filter, Toyo 265/75/16 ATs, Deckplate, PP Springs and Bilsteins, Cheapo nerf bars, Injector replacement impending

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