transmission flush

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Nov 10, 2009 | 05:57 PM

wolfsmurf

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transmission flush

just wondering what the guru's choice is for flushing transmission lines and coolers is. i have seen the little fix a flat like can of flush in a kit. someone said to use brake cleaner then blow out with shop air.

Nov 10, 2009 | 06:23 PM

quicklook2

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From: Lakewood, Ohio

if you would try a search on the subject, you will find that a flush is not necessary.

drain converter, drain pan, remove pan, replace filter, replace pan, replace fluid.

done.

Nov 10, 2009 | 07:19 PM

rla2005

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For a normal transmission fluid change I would agree with quicklook2. But if you are installing a new/rebuilt transmission, that is a different story. I would rig up a pump of some type, flexible lines and a filter to run fresh trans. fluid through the cooler and lines. Unbelievable the amount of stuff fresh trans.fluid will dislodge. I fell victim to poorly flushed cooler/lines when I had my C6 rebuilt several years ago. It lasted ~ 20 miles before the stuff sticking to the cooler/lines dumped into the rebuilt transmission. It was not a pretty sight or smell.

Nov 10, 2009 | 08:18 PM

wolfsmurf

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sorry for the confusion, i meant to type that i am replaced in smoked tranny with a fresh rebuild. i have no way to tell what went wrong with the previous one so just to be safe and clean i want to flush the lines and coolers.

its been a really looonnnnngggg day or i would have posted that too.

Nov 10, 2009 | 08:34 PM

quicklook2

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always important to state all the facts in a post.

the lines are not so much the problem as the radiator cooling tank.

have radiator/tank flushed.

the only way to be sure the lines are clean is to replace them.

Nov 11, 2009 | 12:32 AM

TexasGuy001

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Personally, I don't think you need to worry about the lines. Just run some clean fluid through them. What quicklook said about the radiator is more important. If you are really concerned about it, you could just replace the radiator, especailly if its old.