Toyota Corolla 1970-1987 Repair Guide

Fluid Pan

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REMOVAL, INSTALLATION AND FILTER SERVICE



See Figures 1 and 2

  1. To avoid contamination of the transaxle, thoroughly clean the exterior of the oil pan and surrounding area to remove any deposits of dirt and grease.
  2.  



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Fig. Fig. 1: Removing the automatic transaxle oil pan



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Fig. Fig. 2: Removing the automatic transaxle oil filter (strainer)

  1. Position a suitable drain pan under the oil pan and remove the drain plug. Allow the oil to drain from the pan. Set the drain plug aside.
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  3. Loosen and remove all but two of the oil pan retaining bolts.
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  5. Support the pan by hand and slowly remove the remaining two bolts.
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  7. Carefully lower the pan to the ground.
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  9. Remove the 3 oil strainer (filter) attaching bolts and carefully remove the strainer. The strainer will also contain some fluid.
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One of the 3 oil strainer bolts is slightly longer than the other 2. Make a note of where the longer bolt goes so that it may be reinstalled in the original position

  1. Discard the strainer. Remove the gasket from the pan and discard it.
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  3. Drain the remainder of the fluid from the oil pan and wipe the pan clean with a lint-free rag. Using a gasket scraper, remove any old gasket material from the flanges of the pan and the transaxle. Remove the gasket from the drain plug and replace it with a new one.
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There may be anywhere from one to three small magnets on the bottom of the pan. These magnets were installed by the manufacturer at the time the transaxle was assembled. The magnets function to collect metal chips and filings from clutch plates, bushings and bearings that accumulate during the normal break-in process that a new transaxle experiences. Clean the magnets and reinstall them. They can be useful tools for determining transaxle component wear, but more importantly they help to keep the fluid clean

To install the filter and pan:
  1. Install the new oil strainer. Install and tighten the retaining bolts to 7-8 ft. lbs. (10-11 Nm) in their proper locations.
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  3. Install the new gasket onto the oil pan making sure that the holes in the gasket are aligned evenly with those of the pan. Position the magnets so that they will not interfere with the oil tubes.
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  5. Raise the pan and gasket into position on the transaxle, then install the retaining bolts. Torque the retaining bolts in a criss-cross pattern to 43 inch lbs. (4.9 Nm).
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  7. Install and tighten the drain plug.
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  9. Fluid is added only through the dipstick tube. Use the proper type of fluid for your automatic transaxle. For more information on filling the transaxle, please refer to General Information & Maintenance in this repair guide. If you are unsure what type of fluid to use, consult your owner's manual.
  10.  

Do not overfill the transaxle. Do not race the engine when adding fluid

  1. Replace the dipstick after filling. Start the engine and allow it to idle.
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  3. After the engine has idled for a few minutes, shift the transmission slowly through the gears and then return it to P. With the engine still idling, check the fluid level on the dipstick. If necessary, add more fluid to raise the level to full.
  4.  

Before recycling the used fluid, check the color of the fluid. It should always be bright in color. It if is discolored (brown or black), or smells burnt, serious transmission troubles, possibly due to overheating, should be suspected. The transmission should be inspected to locate the cause of the burnt fluid

 
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