98 tahoe trans fluid flush or drain

[fatwagon5150]

I recently bought a 98 tahoe,started changing all the fluids and was wondering if anyone recommends getting the trans fluid flushed or dropping the pan an installing a new filter and fluid.Any info would be appreciated.On another note,i cant seem to track down the humming or whining from the front end.Changed transfer case fluid,its fine.Only think i noticed was the trans fluid was dirty an bubbling on the stick. its driving me insane.Don't think its a wheel bearing.Again any info would be great.This forum helped me with a lot so far an im grateful

 

[SunlitComet]

drop pan and refill. report back on fluid condition.

 

[JenneK]

Dropping the pan only gets a small portion of the actual fluid out.

Best bet is to do a full fluid flush. You can do it yourself with a helper provided you know how to locate the transmission cooler lines.

Even easier if you have a tranny cooler. My GMC does. Don't know if it is standard on Tahoes...

 

[the 18th letter]

How many miles on her? I was told that once you go above a 100k and have never had the fluid flushed, just do the filter and call it a day.

 

[Trippers99hoe]

Do not do a backflush on high mileage units,but you can do a complete fluid change by removing the upper trans cooler line and replacing it with a fitting and hose into a catch pail.
here is an easy how to....http://www.gmfullsize.com/forum/showthread.php?t=179148

 

[willua11]

how easy is it to change the transmission filter in a 98?

 

[SunlitComet]

Once pan is removed you have access to filter.