GM Camaro/Firebird 1993-1998 Repair Guide

Oil Pan

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REMOVAL & INSTALLATION




CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.

3.4L and 5.7L Engines

See Figures 1, 2 and 3

  1. Disconnect the negative battery cable. Remove the air intake duct.
  2.  
  3. Raise the vehicle and support it safely with jackstands.
  4.  
  5. Drain the engine oil into a suitable container.
  6.  
  7. For 3.4L engines, drain the cooling system.
  8.  
  9. For 3.4L engines, remove the wiring harness clips from the left side of the oil pan.
  10.  
  11. Detach the oil level sensor connector, then remove the sensor.
  12.  


CAUTION
Be sure that the exhaust system is cool before proceeding.

  1. For the 3.4L engine, disconnect the exhaust crossover pipes from the exhaust manifold.
  2.  
  3. For the 5.7L engine, remove the catalytic converter.
  4.  
  5. Remove the exhaust pipe hanger bolt/screw and reposition the pipe.
  6.  
  7. If equipped with an automatic transmission, detach the cooler lines from the clip at the oil pan.
  8.  
  9. Remove the starter motor.
  10.  
  11. If equipped with an automatic transmission, unfasten the converter cover bolts/screws, then remove the cover.
  12.  
  13. Remove the engine mount through bolts/screws.
  14.  
  15. Use a suitable jacking fixture to raise the engine enough to provide sufficient clearance for oil pan removal.
  16.  

If the front crankshaft throw prohibits removal of the pan, turn the crankshaft to position the throw horizontally.

  1. Unfasten the oil pan bolts/screws, studs and nuts. If necessary, rotate the crankshaft to reposition the counterweights.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the oil pan assembly - 3.4L engine

  1. Clean all of the old RTV sealant or gasket from the oil pan and engine block. Make sure the mating surfaces are clean.
  2.  

To install:
  1. Apply a small amount of RTV sealer to the front cover and engine block junction and to the rear oil seal housing and engine block junction. Apply sealer 1 in. (25mm) in either direction of the radius cavity of these junctions.
  2.  
  3. Position the oil pan gasket, then install the oil pan and secure with the retainers.
  4.  



Click image to see an enlarged view

Fig. Fig. 2: Oil pan sealer and gasket location - 5.7L engine

  1. For the 3.4L engine, tighten as follows:
    1. Front corner nuts to 24 ft. lbs. (33 Nm).
    2.  
    3. Rear corner bolts/screws to 18 ft. lbs. (25 Nm).
    4.  
    5. Side rail bolts/screws to 89 inch lbs. (10 Nm).
    6.  
    7. Oil pan studs to 53 inch lbs. (6 Nm).
    8.  

  2.  
  3. For the 5.7L engine tighten as follows:
    1. Corner oil and bolts/screws or stud and nuts to 15 ft. lbs. (20 Nm).
    2.  
    3. Remainder of oil pan bolts/screws and studs to 106 inch lbs. (12 Nm).
    4.  

  4.  



Click image to see an enlarged view

Fig. Fig. 3: Exploded view of the oil pan and related components - 5.7L engine

  1. Carefully lower the engine.
  2.  
  3. Install the engine mount through bolts/screws. Tighten to 70 ft. lbs. (95 Nm).
  4.  
  5. Install the oil level sensor. Tighten to 16 ft. lbs. (22 Nm).
  6.  
  7. If equipped, install the converter cover and secure with the retaining bolts/screws. Tighten to 89 inch lbs. (10 Nm).
  8.  
  9. Install the starter motor.
  10.  
  11. If equipped, fasten the transmission fluid cooler lines to the clip at the oil pan.
  12.  
  13. Install the exhaust pipe hanger bolt/screw.
  14.  
  15. If equipped with the 3.4L engine, attach the exhaust crossover pipes to the manifolds.
  16.  
  17. If equipped with the 5.7L engine, install the catalytic converter.
  18.  
  19. Attach the oil level sensor electrical connector.
  20.  
  21. For the 3.4L engine, fasten the wiring harness clips to the oil pan.
  22.  
  23. Carefully lower the vehicle. Install the air cleaner duct.
  24.  
  25. Connect the negative battery cable.
  26.  
  27. Fill the crankcase with the proper type and amount of engine oil.
  28.  
  29. Start the engine and check for leaks.
  30.  

3.8L Engine

See Figure 4

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the alternator.
  4.  
  5. Remove the ignition coil.
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Disconnect the exhaust catalytic converter pipe.
  10.  
  11. If equipped with an automatic transmission, remove the converter cover.
  12.  
  13. Unfasten the engine mount through bolts/screws and nuts.
  14.  
  15. Raise the engine using tools J 28467 and J 41044.
  16.  

The oil level switch, located in the oil pan, must be removed before removing the pan. If the pan is removed first, the switch may be damaged.

  1. Detach the oil level indicator switch electrical connector, then remove the switch.
  2.  
  3. Unfasten the oil pan retaining bolts/screws, then remove the oil pan and gasket. Lower the rear of the oil pan while rotating outward.
  4.  



Click image to see an enlarged view

Fig. Fig. 4: Exploded view of the oil pan and gasket - 3.8L engine

  1. Clean all of the old RTV sealant or gasket from the oil pan and engine block. Make sure the mating surfaces are clean.
  2.  

To install:
  1. Position the oil pan gasket, then install the oil pan. Tighten the retainers to 125 inch lbs. (14 Nm).
  2.  
  3. Install the oil level switch and attach the switch electrical connector.
  4.  
  5. Carefully lower the engine. Install the engine mount through bolts.
  6.  
  7. If equipped, install the automatic transmission converter cover.
  8.  
  9. Connect the exhaust catalytic converter pipe.
  10.  
  11. Carefully lower the vehicle.
  12.  
  13. Install the ignition coil.
  14.  
  15. Install the alternator.
  16.  
  17. Connect the negative battery cable.
  18.  
  19. Fill the crankcase with the proper type and amount of engine oil.
  20.  
  21. Start the engine and check for leaks.
  22.  

 
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