Wednesday, December 16, 2009

Is it a good idea to completely flush transmission oil?

I have a Corolla, year 2000 with 5gear manual transmission and the third gear has been hard to hit recently especially from 4. I heard from a mechanic that changing the transmission fluid completely may not be a good idea since the brand new fluid would send all the debris all over the transmission causing more trouble than it would solve. What do you think? He recommends only filling the fluid to a proper level and not drainig it completely... The car has 90k miles in it.Is it a good idea to completely flush transmission oil?
that is only for auto trans because of the small passage's in the valve body. it sounds like you have a synchronizing ring going out. it slows the gear your switching to down to allow the shift.changing the fluid wont help.cause that wont replace the worn ring.Is it a good idea to completely flush transmission oil?
new fluid would not hurt it, but it won't fix it. you might want to have the trans rebuilt. sounds like a ';syncronizer gear'; is going bad. All they are is brass and don't last forever.
The best thing to do is to remove the pan and let all the fluid drain that will do so naturally. Replace the filter and make sure all the metal particles are cleared from the pan and then reinstall it and add new fluid to specs.





This is what the manufacturers recommend.

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