How do you go about changing the trans fluid on a 2005 chevy impala
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,
Jul 12, 2010 |
Cars & Trucks