1985-1998 [Subscribe to Daily Digest] |
People on this BB discussed the issue of how many fluid changes are needed. Mathematically or in practice, two changes - three at most - seem to be enough. On the other hand, one complete flush may be best.
THE HARD WAY:
First, drain the fluid from the pan. Once you've replaced the filter,and reinstalled the plug, you're ready for the next step.
Fill the transmission to the proper level using the proper type of transmission fluid.
Then disconnect the return transmission line (the line in which transmission fluid flows from the transmission cooler back to the transmission), located near the bottom of the radiator.
Once the line has been disconnected, attach a clear piece of tubing to the transmission cooler, the same diameter as the transmission line, approximately 5-6 feet long, using the transmission line clamp to secure it.
Place the unattached end of the clear tube in a plastic, one gallon milk container and place it where it can be seen.
For the next portion of the procedure, make sure that the parking brake is set prior to continuing. Start the engine. The transmission may have to be put into "Neutral" or "Drive" in order to pump the fluid from the transmission.
While the transmission is pumping out fluid, you can monitor approximately how much fluid has been pumped out by looking at how much fluid has been pumped into the plastic milk jug.
While fluid is being pumped out, slowly add new fluid to the transmission at about the same rate as its being pumped out. This keeps the fluid level at, or near the proper level. You can see the condition of the fluid through the clear tubing as its being pumped out.
After approximately 4 to 5 quarts of fluid have been pumped out, you should notice a change in the color of the fluid. It should go from a brownish red color, to a bright pinkish red color. When this happens, all of the old fluid has been replaced with new fluid.
LASY WAY:
Here is a simple way to change the transmission fluid that doesn't even require you to crawl under the vehicle.
Use about 6 or 8 ft. of clear vinyl tubing - probably only 1/8" or 3/16" ID. The type of low cost tubing you can get at your local hardware store.
stick the clean tubing all the way down into the dip stick opening until it clearly is on bottom. Then start a siphon by sucking on the tubing. You can easily see the reddish colored fluid moving up the tubing and towards you. When the fluid gets a few inches from the end you simply place the end into your container and the siphon action will do the rest.
Of course this method doesn't address the filter inside the pan.
It will take all night and maybe a full 24 hrs. When it stops you can easily tell from looking at the clear tubing. If the siphon stops after 3 or 4 quarts, if you reposition the tubing and start again you may get another quart or two. Also, don't let the container you're going into with the old fluid get too high or the siphon could slow.
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