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Transmission Fluid Help?

Old 04-23-2009, 07:11 PM
Junior Member
Thread Starter
Join Date: Mar 2007
Posts: 12
Default Transmission Fluid Help?

Hey guys I recently got a 2000 s80 2.9L with 113,000 mi. It shifts well when I accelerate slowly, but when I try to punch it a bit, the shifting is VERY rough. Would you all reccomend getting the transmission fluid replaced?
Old 04-24-2009, 10:16 AM
Join Date: Feb 2009
Location: Rochester, MN
Posts: 68

Check the torque mounts. Especially the one on the lower front. Could also be the one attached to the strut bar. More than likely your problem. Changing the fluid is never a bad idea either!
Old 04-25-2009, 11:07 PM
Join Date: Apr 2009
Location: Montana
Posts: 57

I had mine flushed and changed to Amsoil at about 140K. What a difference it made. Very smooth shifting now.
Old 04-25-2009, 11:48 PM
Senior Member
Join Date: Jan 2008
Location: Tampa, FL
Posts: 879

I just bought 15 qt's of amsoil ATF to do the change myself... using the bleeding method, wouldnt risk getting a 110k gm tranny flushed.

I'll drop the pan and change the filter first though and clean the pan if I find any gunk down there.. Also installing an inline Magnefine filter on the cooler line..
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