How much transmission fluid does my 2005 chevy colorado w/ a 3.5L 5cyl w/ an automatic trans take when removing the pan and replacing the filter.

on automatic inside trans pan need to remove trans pan to get to it ---on a manual trans no filter the following link shows how to fill trans
Transmission Fluid Replacement 2002 2007 Saturn Vue

Remove the transmission pan - some don't have drain plugs, have a big pan underneath to catch the fluid. Pull filter and install filter on. Clean any debris from pan. Install gasket onto pan and install pan back onto transmission. Torque bolts to factory specs. Fill with approved ATF.

Hope this is helpful :-)

-Scott

Pontiac G6 GT Trans Fluid and Filter Change time lapse GoPro

Don't worry about the lines unless excessive sludge and debris is found during pan removal. Drop the pan, inspect , wipe clean, replace filter and fill with fluid. This service is recommended every 50k.

Trans fluid maybe low, and/or trans filter stopped-up. Drop pan...change filter...replace fluid.

Purchase trans fluid & filter kit from parts store. With vehicle parked and wheels chocked, undo trans pan slowly loosening bolts allowing one corner to allow fluid to drain (into a catch container of course). Pull pan once drained, remove old gasket, undo screws holding filter in place, replace with new filter, attach gasket to pan, retighten pan, refill.

First make sure you have the proper amount of Transmission fluid to replace what you drain as well as a new transmission filter and gasket. (they usually come in a kit together. The filter & gasket). Make sure the transmission fluid is warm before using jack stands, drive on ramps or a floor jack with jack stands. If there's a transmission drain plug, open it and allow the transmission fluid to drain into a catch pan. If there's not a drain plug, remove the transmission pan bolts, leaving the 4 corner bolts in place until the end. Then slowly loosen two of the bolts at the same end to allow the transmission pan to tilt as well as drain the fluid that way. As the transmission fluid drains, start removing the other two pan bolts to allow more of a tilt until you can place your hand on the pan and remove the remaining bolts, thus removing the pan to be cleaned out. You will normally find a magnet in the bottom of the pan which needs to be cleaned and re-installed. The transmission filter is attached to the "valve body" ,m and when removing that, be aware that more transmission fluid will drain out. To clean a transmission pan, I use either CRC Brake-Kleen or gasoline. Remove all of the pan gasket, install the new filter and replace the transmission pan...don't forget to place the magnet in it and pull your transmission dipstick out of the tube. It has a "vent to atmosphere" so the Brake-Kleen is wonderful for that. If not cleaned, it allows internal pressures to build up inside of the transmission and you could blow transmission seals. Refill with fluid and with your foot on the brake, start it up and allow it to go into ALL the gear ranges, eg. Park, Reverse, Neutral, Drive 2nd and low and then back up to allow the valve body to replace the fluid lost when the filter was changed. Road test and re-check the Transmission fluid Hot on a level surface and add as needed.
A Haynes Manual for your particular vehicle would help with the amount of fluid you will need as well as the tightening pattern of the pan. It also has pictures of what you're going to see before you launch into this task.

Hope this Helps,

"00 Buck"

remove the transmission oil pan bolts,leave one corner tight untill your ready to lower pan and drain fluid into oil catcher pan,then remove remaining bolts and drop pan,
remove the transmission filter, install new filter,clean inside pan and dry,install new gasket on pan,reinstall pan,put at least 5 quarts in before you start car and shift through gears,return to park,and bring oil to full mark.

transmission pan must be removed to drain fluid & change filter.loosen all pan bolts,remove all but 4 bolts @ corners.strike pan with a plastic hammer or block of wood if it's stuck. slowly remove remaining bolts,allowing fluid to drain into a suitable container.this can get messy,have rags handy.when drained,remove pan,clean pan & transmission gasket surfaces.pull filter straight down,push new filter on to tube,positioned as original,install new gasket,'run down 'all pan bolts then tighten them securely.

no drain plug, no car or truck has had a drain plug for decades, reason? they want the filter changed with the fluid, so they make you pull the trans pan to drain the fluid, one very messy job.

You will have to pull the pan off the bottom of the trans, the filter is inside, this is a very messy job and you will most likely get trans fluid everywhere, I would suggest a shop do this unless you have a good floor jack and 4 jack stands, you will also need a large drain pan to catch the fluid. If you do this job do not overfill the trans, get it hot before you top it off with fluid, add 2 quarts right away and then keep adding until it is just below the fluid full line on the dip stick.

PS the other post is a fluid flush and does not include a pan removal or filter change.