Pontiac Fiero 1984-1988 Repair Guide

Oil Pan

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REMOVAL & INSTALLATION



4-2.5L Engine


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Fig. Fig. 1 Exploded views of the cradle mounting and damper-four-cylinder engine



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Fig. Fig. 2 Apply RTV sealant to the areas illustrated on the oil pan and engine block-2.5L engine



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Fig. Fig. 3 Exploded views of the engine and torque strut mount locations and components-2.5L engine

  1. On some models it may be necessary to remove the engine cradle from the car as follows:
  2.  

The cradle can be removed from the car without removing the engine or transaxle.

    1. Using engine support fixture J-28467 or equivalent, raise the engine enough to take tension off the engine mounts.
    2.  
    3. Raise the vehicle and support it safely with jackstands.
    4.  
    5. Remove the exhaust pipe bolts at the manifold.
    6.  
    7. Remove the rear wheel and tire assemblies.
    8.  
    9. Remove both lower control arms at the knuckles.
    10.  
    11. Remove both toe-link rods at the knuckle.
    12.  
    13. Remove the emergency brake cable at the cradle.
    14.  
    15. Remove the engine and transmission mounting bolts.
    16.  
    17. Remove the cradle bolts and remove the cradle assembly.
    18.  



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.

  1. Drain the engine oil.
  2.  
  3. Remove the nuts from the engine mount to the support bracket and the trim panel below the battery.
  4.  
  5. Disconnect the exhaust pipe at the manifold and the rear transaxle mount.
  6.  
  7. Remove the starter and flywheel cover.
  8.  
  9. Remove the upper alternator bracket.
  10.  
  11. Support the engine with Tool J28467 or equivalent.
  12.  
  13. Remove the lower alternator bracket and engine support bracket.
  14.  
  15. Remove the oil pan retaining bolts and remove the oil pan.
  16.  

To install:

  1. Clean the sealing surfaces of the oil pan, front cover and cylinder block with a gasket scraper and solvent.
  2.  
  3. Apply RTV sealer to the cylinder block and oil pan as shown in the oil pan illustration.
  4.  
  5. Install the oil pan assembly and retaining bolts (install the oil filter on 1987-88 engines).
  6.  
  7. Install the engine front support bracket and mount.
  8.  
  9. Lower the vehicle and lower the engine into the mounts.
  10.  
  11. Remove the engine support tool No. J28467.
  12.  
  13. Install the engine torque strut.
  14.  
  15. Raise the vehicle and install the lower alternator bracket bolt.
  16.  
  17. Install the air conditioning compressor bolts, if so equipped.
  18.  
  19. Install the heat shield at the air conditioning compressor, if so equipped.
  20.  
  21. Install the front engine mount to cradle nuts.
  22.  
  23. Install the splash shield and starter motor.
  24.  
  25. Install the starter and flywheel cover.
  26.  
  27. Install the wheel assemblies and lower the vehicle.
  28.  
  29. Install the alternator and drive belts. Tighten the belt to specifications in .
  30.  
  31. Install the trim panel below the battery side panel.
  32.  
  33. Install the specified engine oil and the negative (-) battery cable. Start the engine and check for oil and exhaust leaks.
  34.  

When installing the engine cradle, torque the following as indicated:



Rear cradle bolts: 76 ft. lbs. (100 Nm).
 
Front cradle nut: 67 ft. lbs. (89 Nm).
 
Engine mount assembly: 42 ft. lbs. (55 Nm).
 
Rear mount assembly: 18 ft. lbs. (23 Nm).
 
Front mount assembly: 36 ft. lbs. (48 Nm).
 
Lower control arm at knuckle: 33 ft. lbs. (44 Nm).
 
Lower control arm at cradle: 69 ft. lbs. (94 Nm).
 

6-2.8L Engine


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Fig. Fig. 4 Cradle and transaxle mount locations and components



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Fig. Fig. 5 To access the oil pump, you must first remove the oil pan-V6 engine



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Fig. Fig. 6 Drain the engine oil from the pan ...



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Fig. Fig. 7 ... then remove the oil pan retaining bolts

  1. Disconnect the negative (-) battery cable.
  2.  
  3. Raise the vehicle and support it safely with jackstands.
  4.  


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.

  1. Drain the oil from the crankcase.
  2.  
  3. Remove the flywheel shield or clutch housing cover.
  4.  
  5. Remove the starter.
  6.  
  7. Remove the oil pan bolts and oil pan.
  8.  

To install:

  1. Clean all mating surfaces.
  2.  
  3. Place a 3mm bead of RTV sealant on the oil pan sealing flange.
  4.  
  5. Install the oil pan and torque the 1 inch bolts to 6-9 ft. lbs. (8-12 Nm) and the 1.5 inch bolts to 14-22 ft. lbs. (19-29 Nm).
  6.  
  7. Install the starter assembly.
  8.  
  9. Install the flywheel and clutch housing cover.
  10.  
  11. Lower the vehicle and refill the crankcase with the specified engine oil.
  12.  
  13. Install the negative (-) battery cable. Start the engine and check for oil leaks.
  14.  

 
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