Seafoam for the 4GR-FSE
07-30-18, 10:48 PM
#31
I went with Techron for a first treatment. Put 1 bottle in at a less than quarter tank and ran it hard, then filled half a tank and put in another bottle. It runs great now. I'lll try Seafoam next but need specific instructions on where the vacuum lines are and if I should just buy 3 bottles, run one thru the vacuum lines, one in a quarter tank of gas and one in the oil.
07-31-18, 12:02 AM
#32
Driver School Candidate
Well coincidentally, Im actually about to go change her oil and Sea foam it I can snap photos of the two lines I go thru. Taking the plenum off isn't too bad. Just make sure you don't lose the two crush washers for the banjo bolt on the cold start fuel line, and don't overtighten the plenum bolts when re assembling
07-31-18, 12:05 AM
#33
Driver School Candidate
I don't know if you can still get it done under the TSB but at the time the cost was on Toyota. Kinda like recall except not enough vehicles were affected then
07-31-18, 12:08 AM
#34
Driver School Candidate
I went with Techron for a first treatment. Put 1 bottle in at a less than quarter tank and ran it hard, then filled half a tank and put in another bottle. It runs great now. I'lll try Seafoam next but need specific instructions on where the vacuum lines are and if I should just buy 3 bottles, run one thru the vacuum lines, one in a quarter tank of gas and one in the oil.
07-31-18, 06:17 AM
#35
I’ve watched a ton of videos of people analyzing the effectiveness of Seafoam without any mechanical agitation and it doesn’t seem to help that much. If you’re having serious problems then removing even a small layer of carbon should help a lot but to truly remove the carbon you have to go in and mechanically clean the intake.
It may be helpful to read through the carbon build up thread, most people only see true changes after scrubbing or walnut blasting, this is after using Seafoam.
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bryceis250 (08-03-18)
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08-03-18, 01:19 AM
#37
Intermediate
clarification to article
(1) Added 1 bottle of Royal Purple Injector cleaner
(2) 1 bottle of Sea Foam intake treatment (and created lots of big smoke clouds). I recommend spraying it all in on a warm engine, then letting it soak for 15min or so.
After running through the tank of gas this way, KCLV would immediately shoot to 22!"
so, hes saying spray the whole can of sea foam into the intake, with the car NOT running, and let it soak for 15?i thought that sea foam treatment required the motor running.royal purple injector cleaner is a spray also, or put it in the gas? see how he says "after running through THE tank of gas, rather than saying A tank of gas..idk. im just little confused still .
08-03-18, 03:36 AM
#38
"So we did the following:
(1) Added 1 bottle of Royal Purple Injector cleaner
(2) 1 bottle of Sea Foam intake treatment (and created lots of big smoke clouds). I recommend spraying it all in on a warm engine, then letting it soak for 15min or so.
After running through the tank of gas this way, KCLV would immediately shoot to 22!"
so, hes saying spray the whole can of sea foam into the intake, with the car NOT running, and let it soak for 15?i thought that sea foam treatment required the motor running.royal purple injector cleaner is a spray also, or put it in the gas? see how he says "after running through THE tank of gas, rather than saying A tank of gas..idk. im just little confused still .
(1) Added 1 bottle of Royal Purple Injector cleaner
(2) 1 bottle of Sea Foam intake treatment (and created lots of big smoke clouds). I recommend spraying it all in on a warm engine, then letting it soak for 15min or so.
After running through the tank of gas this way, KCLV would immediately shoot to 22!"
so, hes saying spray the whole can of sea foam into the intake, with the car NOT running, and let it soak for 15?i thought that sea foam treatment required the motor running.royal purple injector cleaner is a spray also, or put it in the gas? see how he says "after running through THE tank of gas, rather than saying A tank of gas..idk. im just little confused still .
However, this was performed on an is350 which does not suffer from carbon buildup in the intake because it is portside injection.
This method is used to clean out carbon deposits in the combustion chamber not the intake.
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bryceis250 (08-03-18)
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