Removal and Installation: Removal

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

You should not remove the oil pan until the exhaust system and cooling system have completely cooled off.
When removing the front and rear engine mounting through bolts and nuts, lift the engine up slightly for safety.

CAUTION: When removing the upper oil pan from the engine, first remove the crankshaft position sensor (POS). Be careful not to damage sensor edges or signal plate teeth.

Remove the front RH wheel and tire using power tool.
Drain engine oil.
Drain the engine coolant.
Remove the oil dipstick.
Remove the engine undercover.
Remove the RH inner fender splash shield.
Remove the A/C drive belt. Refer to REMOVAL .
Remove the front exhaust tube. Refer to EXHAUST SYSTEM .
Remove coolant pipe bolts.
Discharge and recover the R134a refrigerant. Refer to HFC-134A (R-134A) SERVICE PROCEDURE .
Remove the A/C compressor using power tools. Refer to REMOVAL AND INSTALLATION FOR COMPRESSOR .
Disconnect the coolant lines from the engine oil cooler and plug them to prevent coolant loss.
Remove the oil filter and engine oil cooler from the upper oil pan.
Remove the oil pressure switch, and the crankshaft position sensor (POS) from the upper oil pan.
Remove the front drive shafts. Refer to AXLE SHAFTS .
Remove the front suspension member. Refer to FRONT SUSPENSION MEMBER
Disconnect the heated oxygen sensors and air flow ratio (A/F) sensors and remove the two three way catalysts from the exhaust manifolds using power tool. Refer to EXHAUST SYSTEM
Remove the rear plate cover from the upper oil pan.

Fig 1: Removing Rear Plate Cover From Upper Oil Pan
Courtesy of NISSAN MOTOR CO., U.S.A.
Loosen the lower oil pan bolts using power tool in order shown.

Fig 2: Loosening Lower Oil Pan Bolts Using Power Tool
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the lower oil pan.
1. Insert Tool between the lower oil pan and the upper oil pan.
  1. Tool number: KV10111100 (J-37228)
  - Be careful not to damage the mating surface.
  - Do not insert a screwdriver, this will damage the mating surfaces.
2. Slide the Tool by tapping its side with a hammer to remove the lower oil pan from the upper oil pan.
  
  Fig 3: Removing Lower Oil Pan From Upper Oil Pan
  Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the four upper oil pan to transaxle bolts.

Fig 4: Removing Upper Oil Pan To Transaxle Bolts
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove oxygen sensor wire retainer bracket.
Remove the upper oil pan.
1. Loosen the bolts in the order shown, using power tool.
  
  Fig 5: Loosening Bolts
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Insert an appropriate size tool into the notch (1) of the upper oil pan as shown.
3. Pry off the upper oil pan by moving the tool up and down (2) as shown.
  
  Fig 6: Inserting Tool Into Notch Of Upper Oil Pan
  Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the O-ring seals from the bottom of the cylinder block and oil pump housing, use new O-rings for installation.

Fig 7: Removing O-Ring Seals From The Bottom Of The Cylinder Block
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove front cover gasket and rear oil seal retainer gasket.

Fig 8: Removing Front Cover Gasket And Rear Oil Seal Retainer Gasket
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove the oil strainer.
If re-installing the original oil pan, remove the old sealant from the mating surfaces using a scraper.
- Also remove the old sealant from mating surface of the cylinder block.
- Remove the old sealant from the bolt holes and threads.
Fig 9: Removing Old Sealant From The Bolt Holes
Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: Do not scratch or damage the mating surfaces when cleaning off the old sealant.