Flushing transmission oil without changing filter and gasket is it a waste of time?

[Wduaqnug]

?

 

[Eli]

No, it is better than not doing anything at all.. but you should clean the screen.

Which gasket are you referring to?

 

[boyRacer]

probably the gasket for the transmission pan...

 

[Wduaqnug]

so new transmission fluid no improvement to the transmission,even through old oil black like hell

 

[Pepsi90919]

Originally posted by: Wduaqnug
so new transmission fluid no improvement even through old oil black like hell

what?

 

[boyRacer]

Originally posted by: Wduaqnug
so new transmission fluid no improvement to the transmission,even through old oil black like hell

if anything it should shift smoother... with less shudder

 

[ThisIsMatt]

Why don't you just do the whole thing instead of being half assed about it?

If you have a honda, though, things might be different...

 

[T2T III]

Actually, BG Products makes a machine that pumps out your old fluid from the dipstick hole and then the mechanic refills the transmission with new fluid. Pat Goss is a pretty avid supporter of BG Products. However, to me, it seems kind of silly that one would only swap the fluid out without chaning the filter. In the past, I've done the work for about $23.00 in parts ($11.00 for the filter and gasket + 4 Qts. of fluid.) The BG Products process runs nearly $100 as I asked for an estimate one time. Most other places charge $69 - $89 to drop the pan, replace the filter and add new fluid.

I think dropping the pan and replacing the filter is the best option. In my experience, I've never torqued the pan bolts to the recommended torque levels. I did this one time and the gasket was totally flattened and the pan leaked. In my scenario, for best results, I ended up torquing the bolts to about 3/4 of the recommended torque level. Remember, you can always tighten the bolts a little more to stop a leak. But, if you overtighten them in the beginning, you can't loosen them without causing leaks.

Maybe Roger can give us some more advice.