RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

Transmission fluid change?

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Old 09-25-09 | 09:55 AM
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Default Transmission fluid change?

I Just read through the DIY on this and have a question. If the existing filter is a metal screen it seems to me that the Amsoil warning TSB about transmission flush may not apply. The TSB http://www.amsoil.com/lit/filter_man_council01.pdf says that most filters are felt and will clog. So if it has a screen it won't clog right?

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Old 09-25-09 | 11:19 AM
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I still wouldnt recommend it in these tranies.
Old 09-25-09 | 01:17 PM
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Lexus114, you a hokie?
Old 09-25-09 | 01:23 PM
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I just spoke with the lube guy and he says he wouldn't crack the transmission and bother changing the screen cuz it is a screen not a filter that can bung up. Is this true?
He says it is safer to flush amsoil through it ....
Old 09-25-09 | 04:02 PM
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The original "filters" were wire mesh screens. All replacements now are paper. So if you're on your original filter, you may be OK, but I've never liked the idea of those paper filters!
Old 09-25-09 | 04:21 PM
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After all that reading this is what stands out to me.
"Even if the fluid evacuation method is desired to remove the used transmission fluid,
the pan should be removed also, and an inspection should be made of the pan
contents, fluid, and filter to determine the condition of the transmission. Aluminum
filings in the pan or iron filings on the pan magnet are signs of internal wear and may
give light to potential problems in the transmission. Transmission service is
performed for preventative maintenance. Evaluating the overall condition of the
transmission by removing the pan should be part of this preventative maintenance
also."
Old 09-25-09 | 11:40 PM
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Originally Posted by v4tuna
I Just read through the DIY on this and have a question. If the existing filter is a metal screen it seems to me that the Amsoil warning TSB about transmission flush may not apply. The TSB http://www.amsoil.com/lit/filter_man_council01.pdf says that most filters are felt and will clog. So if it has a screen it won't clog right?

Post your thoughts on this
Read what Zzorro posted. That is my feeling exactly. I would NOT do a flush to begin with. I have read tons of trans failures on all different cars shortly after a "flush". It seem to move debris from the bottom of the pan into valves and other critical areas that then malfunction and cost you a transmission. I believe in totally changing ALL fluid and removing and cleaning the pan and magnets, but by removing the return hose and letting the internal pump do the change. That way no danger of the problems with the "flush". The screen is very fine and could clog if there were enough debris in there. What did the mechanic mean about the screen filter getting bunged? If I understood correctly, the screen filter is completely enclosed so no chance of damage.
Old 09-26-09 | 02:50 AM
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the only way to do a flush is to do a fluid exchange, using the tranny pump to move the fluid. However I agree with Code58 dropping the pan and really checking the condition is the proper way. The flush machines are the service way of eliminating labor, but doesnt give you the proper condition of the tranny. As for the screen, can be cleaned and replaced, but buying a new filter will probably give you a paper medium.
Old 09-26-09 | 01:35 PM
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Originally Posted by blueridge
Lexus114, you a hokie?
Their my favorite college football team.
Old 09-26-09 | 02:08 PM
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Originally Posted by lexus114
Their my favorite college football team.
Sweet! I grew up minutes from there. Always been one, hopefully we'll prove 'em wrong with this Miami game!
Old 09-26-09 | 03:53 PM
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so far so good against Miami
Old 09-26-09 | 06:32 PM
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Beamer ball baby!

Sorry to hijack...
Old 09-28-09 | 07:24 AM
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