GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Fluid Pan

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REMOVAL & INSTALLATION



4T60 and 4T60-E Transaxle
  1. Raise and safely support the vehicle.
  2.  
  3. Place a suitable drain pan under the transaxle fluid pan.
  4.  
  5. Remove the retaining bolts at the front and sides of the fluid pan.
  6.  
  7. Loosen the rear fluid pan bolts approximately four turns.
  8.  
  9. Pry the fluid pan loose with a small prybar (if necessary) and allow the fluid to drain.
  10.  


WARNING
Be careful not to damage the fluid pan and transaxle case mating surfaces, as damage may result in fluid leaks.

  1. Remove the remaining bolts and the fluid pan and gasket.
  2.  
  3. Remove the transaxle screen/filter. The lip ring seal pressed into the case should be removed only if replacement is necessary.
  4.  
  5. Inspect the fluid pan and screen for foreign material, such as metal particles, clutch facing material, rubber particles, or engine coolant. If necessary, determine and correct the source of the contamination.
  6.  



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Fig. Transaxle fluid pan and filter-1990 4T60 transaxle



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Fig. Transaxle fluid pan and filter-1991-93 vehicles with 4T60-E transaxle



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Fig. If the washers on the fluid pan bolts look the same as on bolt No. 1, the bolts can be reused. If the washers look like the one on bolts No. 2, the bolts should not be reused



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Fig. Loosen the bolts on the transaxle pan



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Fig. Remove a select number of bolts to allow the pan to tilt



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Fig. Allow the fluid to drain before removing the pan completely



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Fig. Remove the scavenger screen from the transaxle



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Fig. Be careful when removing the filter, fluid will drain out



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Fig. The scavenger screen can be cleaned



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Fig. Remove the gasket on the transaxle pan



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Fig. The gasket on this application is reusable, not all are like this



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Fig. Thoroughly clean the transaxle pan gasket surfaces



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Fig. This magnet is built into the pan. Clean it well before reinstalling the pan

To install:

  1. Clean all gasket-mating surfaces. Clean the fluid pan and screen in solvent and allow them to dry. Inspect the fluid pan flange for distortion and straighten, if necessary.
  2.  


NOTE
The transaxle case and fluid pan flanges must be clean, dry, and free of any oil film prior to fluid pan and gasket installation, or leakage may result. Inspect the washers on the fluid pan bolts before reuse.

  1. Install the screen, using a new filter. The filter uses a lip ring seal pressed into the case. The seal should be removed only if replacement is necessary.
  2.  
  3. Install the fluid pan, using a new gasket. Tighten the bolts to 10 ft. lbs. (13 Nm) on 1990 vehicles or 12-13 ft. lbs. (16-17 Nm) on 1991-93 vehicles.
  4.  
  5. Lower the vehicle.
  6.  
  7. Fill the transaxle with six qts. of DEXRON III® transmission fluid.
  8.  
  9. Place the gearshift lever in P . Start the engine and let it idle; do not race the engine.
  10.  
  11. Check the fluid level and correct as required. Check the fluid pan for leaks.
  12.  

4T80-E Transaxle

NOTE
The 4T80-E transaxle has a filter under the side cover that requires service only during a complete transaxle overhaul. However, the scavenging screens under the bottom pan must be cleaned whenever the transaxle fluid is changed.

  1. Raise and safely support the vehicle.
  2.  
  3. Place a suitable drain pan under the transaxle fluid pan.
  4.  
  5. Loosen the bottom fluid pan bolts in the reverse order of the torque sequence and drain the fluid from the pan.
  6.  
  7. Remove the drain plug in the case.
  8.  


NOTE
Removing the bottom fluid pan will only partially drain the transaxle fluid. The remaining fluid is held in the side cover and torque converter. Removing the drain plug in the case after bottom fluid pan removal will drain the fluid from the side cover.

  1. Remove the retaining bolts, fluid pan, and seal. Discard the seal.
  2.  
  3. Remove the left and right scavenger screens.
  4.  
  5. Inspect the scavenger screen lip seals in the transaxle case for nicks or cuts and replace, if damaged. Inspect the scavenger screens for cuts in the screen or a cracked housing; replace if necessary.
  6.  
  7. Check the fluid pan and transaxle case for dents or nicks in the sealing surface that could cause leaks. Inspect the fluid pan bolts for damaged threads and replace, if necessary.
  8.  

To install:

  1. Clean the scavenger screens and fluid pan in solvent and allow drying. Clean the fluid pan retaining bolts and the tapped holes in the transaxle case.
  2.  


NOTE
The fluid pan and case sealing surfaces must be clean and dry for proper sealing. The retaining bolts and tapped holes must be clean and dry to maintain proper bolt torque.

  1. Install the drain plug in the case and tighten to 6-10 ft. lbs. (8-14 Nm).
  2.  
  3. Install the left and right scavenger screens.
  4.  
  5. Install the bottom fluid pan using a new seal. Install the fluid pan retaining bolts finger-tight.
  6.  
  7. Tighten the fluid pan bolts in 3 steps. First, tighten the bolts, in sequence, to 27 inch lbs. (3 Nm). Then tighten the bolts, in sequence, to 53 inch lbs. (6 Nm). Finally, tighten the bolts, in sequence, to 106 inch lbs. (12 Nm).
  8.  
  9. Lower the vehicle. Add the proper quantity of DEXRON III® transmission fluid to the transaxle.
  10.  
  11. Make sure the transaxle is in P , then start the engine. With a cold powertrain, engine coolant temperature below 90°F (32°C), the fluid level should be in the `Cold' range on the dipstick.
  12.  
  13. When the powertrain is at normal operating temperature, engine coolant temperature 180-200°F (82-93°C), the fluid level should be in the `Hot' crosshatched range on the dipstick.
  14.  



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Fig. Transaxle fluid pan and seal-4T80-E transaxle



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Fig. Transaxle scavenger screens and drain plug-4T80-E transaxle



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Fig. Transaxle fluid pan retaining bolt torque sequence-4T80-E transaxle

 
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