GM Firebird 1982-1992 Repair Guide

Fluid Pan

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REMOVAL, FLUID/FILTER CHANGE, & INSTALLATION



See Figures 1 through 8

The fluid should be changed with the transmission warm. A 20 minute drive at highway speeds should accomplish this.



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Fig. Fig. 1: Transmission pan-200C



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Fig. Fig. 2: Transmission pan-700-R4 and 4L60

  1. Raise and support the car on jackstands. Place an oil catch pan under the transmission.
  2.  
  3. Remove the oil pan bolts from the front and sides only.
  4.  
  5. Loosen rear oil pan bolts approximately 4 turns.
  6.  


WARNING
Do not damage the transmission case or oil pan sealing surfaces.

  1. Lightly tap the oil pan with a rubber mallet or gently pry it downward to allow the fluid to drain.
  2.  
  3. Remove the remaining oil pan bolts, then remove the oil pan and pan gasket.
  4.  



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Fig. Fig. 3: Removing the inspection plate bolts



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Fig. Fig. 4: Removing the inspection plate



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Fig. Fig. 5: Removing the pan bolts



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Fig. Fig. 6: View with the pan removed



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Fig. Fig. 7: Removing the filter



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Fig. Fig. 8: Automatic transmission oil pan bolt and conical washer assembly

  1. Remove the filter and seal.
  2.  
  3. Clean the transmission case and oil pan gasket surfaces with suitable solvent and air dry. Make sure to remove all traces of the old gasket.
  4.  

To install:
  1. Coat the seal with a small amount of Transjel®.
  2.  
  3. Install the new seal onto the filter.
  4.  
  5. Install the new filter into the case.
  6.  
  7. Install the oil pan and new gasket.
  8.  

On 1991-92 vehicles, inspect the oil pan screws and washer assemblies. The screws must not be used if the conical washer is reversed. Failure to replace the screw and washer assembly may result in improper fastening of system components.

  1. Install the oil pan bolts and tighten them to 12 ft. lbs. (16 Nm).
  2.  
  3. Lower the car.
  4.  
  5. Fill the transmission to proper level with Dexron®II fluid.
  6.  
  7. Check cold fluid level reading for initial fill. Do not overfill the transmission.
  8.  
  9. Follow the fluid level check procedure described before.
  10.  
  11. Check the oil pan gasket for leaks.
  12.  

 
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