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running auto tranny fluid thru motor today, advice

This is a discussion on running auto tranny fluid thru motor today, advice within the General Help forums, part of the LSx Technical Help Section category; okay so i narrowed my tick/knock down to the bottom of the passenger side cylinder head. most suggest it could ...

  1. #1
    caraholic ggino85's Avatar
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    blue green chameleon
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    Cool running auto tranny fluid thru motor today, advice

    okay so i narrowed my tick/knock down to the bottom of the passenger side cylinder head. most suggest it could be a sticky lifter, i've pulled the valve covers and checked everything else i could. so im gonna run automatic tranny fluid thru the engine for 5-10 minutes like another member on the forum suggested (i guess its suppose to be an old school trick?) anyone have any experience doing this or any advice for me as far as what to do or what not to do. i dont wanna my engine.

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    O U 8 1 2 Spaz's Avatar
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    huh??? what... through the cooling lines???

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    formally 01 T/A 0verkill's Avatar
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    "Arrest Me Red"
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    you put a vac line in the bottle of trans flused and keed the car at about 2000 to 2400 rpm or it will die. do it out side coz its going to smoke like crazy. the detergints in the flued are sead to clean the moter. its the chep way to do it coz thay do make kits just for this now but you will pay close to $100 for it camared to just $2

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    O U 8 1 2 Spaz's Avatar
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    first time i'm hearing of this...

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    formally 01 T/A 0verkill's Avatar
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    it is a tru old school deal. most people use the kits now

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    Member 98 Stang Killer's Avatar
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    heck around here you can have it done for like 50-60 bucks

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    Simpsons Did it!! 98formy's Avatar
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    Quote Originally Posted by 01 T/A View Post
    you put a vac line in the bottle of trans flused and keed the car at about 2000 to 2400 rpm or it will die. do it out side coz its going to smoke like crazy. the detergints in the flued are sead to clean the moter. its the chep way to do it coz thay do make kits just for this now but you will pay close to $100 for it camared to just $2
    This trick works great for storing a car over the winter and to lube up the upper end of the motor, but I think he is going to pour it in the motor in place of oil, not through a vacuum line.

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    caraholic ggino85's Avatar
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    Quote Originally Posted by 01 T/A View Post
    you put a vac line in the bottle of trans flused and keed the car at about 2000 to 2400 rpm or it will die. do it out side coz its going to smoke like crazy. the detergints in the flued are sead to clean the moter. its the chep way to do it coz thay do make kits just for this now but you will pay close to $100 for it camared to just $2
    i dont know if i read it on this forum or ls1tech but a bunch of people(myself included) are having a tick/knock that isnt rockers, springs or pushrods. one of the guys said he talked to bunch of mechanics that are familiar with ls1's and they said that the lifters sticking are a common problem with these engines. he went on to explain that the tech. said one thing to try before tearing into the engine is to drain all the engine oil and fill the engine with 5 quarts auto tranny fluid and run the engine for 5-10 minutes, then drain the fluid, change the filter and see if it worked. he was saying its an old trick they use to free up the lifters

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    caraholic ggino85's Avatar
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    Quote Originally Posted by 98formy View Post
    This trick works great for storing a car over the winter and to lube up the upper end of the motor, but I think he is going to pour it in the motor in place of oil, not through a vacuum line.
    yeah i know guys it sounds a little fishy thats why im asking ya.

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    Something Diabolical... chuckie669's Avatar
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    Never heard of this. Kinda sounds like port n polishing your motor with sandblasting sand. PM sarge, he seems to be the local guru. Good luck, and let us know how it goes.

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    caraholic ggino85's Avatar
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    blue green chameleon
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    ok guys, it was this forum, look up (knocking sound with VID) the very last post by CARHAULIN is where i got the idea.

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    Simpsons Did it!! 98formy's Avatar
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    I would use a half quart of marvel mystery oil or justice brothers tune up in a can before I would use trans fluid. From what I know, trans fluid in the motor doesnt really work very well, besides, its really thin and doesnt have the lubricating properties needed for the engine, even if you run it 5-10 minutes with only trans fluid it may even wreck your motor. Just my two cents.

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    Senior Member TransAm11973's Avatar
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    dude just seafoam your engine, i wouldnt put trans fluid in my engine , even if its a proven trick....sounds like a bad idea to me

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    What I heard was that you switch out a quart of Tranny Fluid for Oil when you do your oil change and just run it normally for 3k-5k miles...the Tranny Fluid acts like a detergent and cleans out the stuck on oil sludge.

    I try and do it every other oil change...never caused any problems.

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    Senior Member predator's Avatar
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    1966 Corvette Coupe

    I used to put a bottle of tranny (possibly brake) fluid in my truck gas tank every few months... never had any issues with it...

    -me

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    Single Malt rbob93's Avatar
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    Old school for sure
    Use tranny fluid or Marvel Mystery Oil.

    Ever pour water down the carb to blow out the carbon deposits? Another Old school trick.

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    caraholic ggino85's Avatar
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    ok so i tried it, i put a little over 4 quarts atf in the crankcase, then filled the rest up with regular oil, i was too chicken to run straight atf. i ran the car for about 10 minutes(the tick/knock being there the whole time) then drained the fluid, changed the oil filter and put in some PP 10-30. the sound remains the same. tick, tick, tick all f'ing day!!!!! you can really hear it good when you kneel down and listen in between the front tire and front fender or in between the door and front tire. i dont have a video camera but im gonna try to get one so i can post it up and get some ideas.

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    caraholic ggino85's Avatar
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    Quote Originally Posted by rbob93 View Post

    Ever pour water down the carb to blow out the carbon deposits? Another Old school trick.

    really! when its light enough out i'll try it...

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Quote Originally Posted by ggino85 View Post
    ok so i tried it, i put a little over 4 quarts atf in the crankcase, then filled the rest up with regular oil, i was too chicken to run straight atf. i ran the car for about 10 minutes(the tick/knock being there the whole time) then drained the fluid, changed the oil filter and put in some PP 10-30. the sound remains the same. tick, tick, tick all f'ing day!!!!! you can really hear it good when you kneel down and listen in between the front tire and front fender or in between the door and front tire. i dont have a video camera but im gonna try to get one so i can post it up and get some ideas.
    Do what I said in my post...patience is a virtue...run it for longer than 10 minutes (aka: 3k miles)

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    caraholic ggino85's Avatar
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    Quote Originally Posted by ls1camino View Post
    Do what I said in my post...patience is a virtue...run it for longer than 10 minutes (aka: 3k miles)
    which do you think would work better for freeing up the lifter, MMO or ATF?

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