Nissan Quest 2001-02 and 2004-06

Oil Pan

Print

Removal & Installation



3.3L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Front engine mount (support) insulator through-bolt
     
    Rear engine mount (support) through-bolt
     
    2 rear refrigerant/heater pipe hold down bracket bolts
     
    4 crossmember (also called a transverse member) bolts, and remove the crossmember.
     
    Exhaust inlet pipe
     
    4 rear transaxle-to-engine brace bolts and the 5 front transaxle-to-engine brace bolts
     
    Front transaxle-to-engine brace
     
    Low oil level sensor electrical connector
     
    18 oil pan bolts in the reverse order of the tightening sequence, working from the outside, towards the center bolts.
     
    Oil pan and discard the seals
     

  6.  

To install:

  1. Clean all parts well. Be sure that all old sealing material is removed from the oil pan and engine mating surfaces.
  2.  
  3. Position new oil pan seals. Apply Loctite® Ultra Gray 599 Silicone Sealer, or equivalent, to the ends of the oil pan seals.
  4.  
  5. Apply a bead of Loctite® Ultra Gray 599 Silicone Sealer or equivalent to the oil pan gasket rail inboard of the bolt holes.
  6.  
  7. Install or connect the following:

    Oil pan on the engine block. Tighten the 18 oil pan bolts in sequence, working from the inside, towards the outer bolts. Do not over-tighten. Tighten to 62-70 inch lbs. (7-8 Nm).
     
    Low oil level sensor electrical connector.
     
    Front and rear transaxle braces. Tighten all bolts to 22-30 ft. lbs. (30-40 Nm).
     
    Exhaust inlet pipe
     
    Crossmember and tighten the bolts to 58-65 ft. lbs. (78-88 Nm).
     
    Both engine support through-bolts and tighten to 58-65 ft. lbs. (78-88 Nm).
     

  8.  
  9. Remove the support jack from under the crankshaft pulley.
  10.  
  11. Lower the vehicle.
  12.  
  13. Fill the engine with the specified engine oil to the required level.
  14.  
  15. Connect the negative battery cable. Start the engine and check for leaks.
  16.  


    Click image to see an enlarged view

    Fig. Apply RTV silicone sealer to the seal ends and to the oil pan gasket rail



    Click image to see an enlarged view

    Fig. Tighten the 18 oil pan bolts in sequence, working from the inside, towards the outer bolts


  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Front engine mount (support) insulator through-bolt
     
    Rear engine mount (support) through-bolt
     
    2 rear refrigerant/heater pipe hold down bracket bolts
     
    4 crossmember (also called a transverse member) bolts, and remove the crossmember.
     
    Exhaust inlet pipe
     
    4 rear transaxle-to-engine brace bolts and the 5 front transaxle-to-engine brace bolts
     
    Front transaxle-to-engine brace
     
    Low oil level sensor electrical connector
     
    18 oil pan bolts in the reverse order of the tightening sequence, working from the outside, towards the center bolts.
     
    Oil pan and discard the seals
     

  6.  

To install:

  1. Clean all parts well. Be sure that all old sealing material is removed from the oil pan and engine mating surfaces.

    Click image to see an enlarged view

    Fig. Apply RTV silicone sealer to the seal ends and to the oil pan gasket rail

  2.  
  3. Position new oil pan seals. Apply Loctite® Ultra Gray 599 Silicone Sealer, or equivalent, to the ends of the oil pan seals.
  4.  
  5. Apply a bead of Loctite® Ultra Gray 599 Silicone Sealer or equivalent to the oil pan gasket rail inboard of the bolt holes.

    Click image to see an enlarged view

    Fig. Tighten the 18 oil pan bolts in sequence, working from the inside, towards the outer bolts

  6.  
  7. Install or connect the following:

    Oil pan on the engine block. Tighten the 18 oil pan bolts in sequence, working from the inside, towards the outer bolts. Do not over-tighten. Tighten to 62-70 inch lbs. (7-8 Nm).
     
    Low oil level sensor electrical connector.
     
    Front and rear transaxle braces. Tighten all bolts to 22-30 ft. lbs. (30-40 Nm).
     
    Exhaust inlet pipe
     
    Crossmember and tighten the bolts to 58-65 ft. lbs. (78-88 Nm).
     
    Both engine support through-bolts and tighten to 58-65 ft. lbs. (78-88 Nm).
     

  8.  
  9. Remove the support jack from under the crankshaft pulley.
  10.  
  11. Lower the vehicle.
  12.  
  13. Fill the engine with the specified engine oil to the required level.
  14.  
  15. Connect the negative battery cable. Start the engine and check for leaks.
  16.  

3.5L Engines


Click image to see an enlarged view

Fig. Exploded view of the oil pan assembly-3.5L engine


NOTE
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 (CKP) sensor.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front right hand wheel.
  4.  
  5. Drain engine oil and coolant.
  6.  
  7. Remove the oil dipstick.
  8.  
  9. Remove the engine undercover.
  10.  
  11. Remove the right hand inner fender splash shield.
  12.  
  13. Remove the A/C drive belt.
  14.  
  15. Remove the front exhaust tube.
  16.  
  17. Remove the coolant pipe bolts.
  18.  
  19. Discharge and recover the A/C refrigerant.
  20.  
  21. Remove the A/C compressor.
  22.  
  23. Disconnect the coolant lines from the engine oil cooler and plug the lines them to prevent coolant loss.
  24.  
  25. Remove the oil filter and engine oil cooler from the upper oil pan.
  26.  
  27. Remove the oil pressure switch, and the CKP sensor from the upper oil pan.
  28.  
  29. Remove the front driveshafts.
  30.  
  31. Remove the front suspension member as follows:
    1. Remove the left hand transaxle mount insulator nuts, if equipped with a 5 speed transmission.
    2.  
    3. Attach a engine lifting bracket to the tranaxle at the location illustrated.
    4.  
    5. Install an engine support tool. Make sure the tool is securely resting on the hood ledge.
    6.  
    7. Remove the three transaxle mount insulator nuts.
    8.  
    9. Remove the lower ball joint bolt and separate the transverse link from the steering knuckle.
    10.  
    11. Remove the front exhaust tube.
    12.  
    13. Remove the power steering line bracket.
    14.  
    15. Remove the mounting bolts from the lower side of the steering gear.
    16.  
    17. Disconnect the front engine mount electrical connector.
    18.  
    19. Disconnect the connecting rod from the front strut.
    20.  
    21. Place a transmission jack under the front suspension member and remove the mounting nuts from the front suspension member.
    22.  
    23. Remove the front suspension member bolts from the pin stay on the vehicle body side.
    24.  
    25. Remove the through bolts from the front and rear engine mounts.
    26.  
    27. Lower the transmission jack to remove the front member. It may be necessary to remove the exhaust hanger bracket, the front and rear engine mounts and the transverse link to enable removal.
    28.  

  32.  
  33. Disconnect the Heated Oxygen (HO2S) sensors and Air Flow Ratio (AFR) sensors and remove the two three way catalysts from the exhaust manifolds.
  34.  
  35. Remove the rear plate cover from the upper oil pan.
  36.  
  37. Loosen the lower oil pan bolts in the sequence illustrated.
  38.  
  39. Remove the lower oil pan by inserting a suitable prytool between the lower and the upper pans.
  40.  


NOTE
Do not insert a screwdriver, this will damage the mating surfaces. Slide the Tool by tapping its side with a hammer to remove the lower oil pan from the upper oil pan.

  1. Remove the four upper oil pan-to-transaxle bolts.
  2.  
  3. Remove O2S sensor wire retainer bracket.
  4.  
  5. Remove the upper oil pan by loosening the bolts in the sequence illustrated.
  6.  
  7. Insert an appropriate size tool into the notch of the upper oil pan as shown in the accompanying illustration.
  8.  
  9. Pry off the upper oil pan by moving the tool up and down as illustrated.
  10.  
  11. If re-installing the original oil pan, remove the old sealant from the mating surfaces using a scraper.
  12.  


    Click image to see an enlarged view

    Fig. Location of the rear plate-3.5L engine



    Click image to see an enlarged view

    Fig. Loosen the lower oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Separate the lower pan from the upper pan using a suitable tool and a hammer-3.5L engine



    Click image to see an enlarged view

    Fig. Loosen the upper oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Pry off the upper oil pan by moving the tool up and down-3.5L engine


To install:


CAUTION
Wait at least 30 minutes before refilling the engine with oil.

  1. Apply a 0.15-0.197 inch (4-5mm) bead of sealant to the cylinder block mating surface of the upper oil pan as illustrated. Attach the pan within 5 minutes of applying the sealant.
  2.  
  3. Install new O-rings on the cylinder block and oil pump body.
  4.  
  5. Install the upper oil pan. Tighten upper oil pan bolts in the order illustrated to 13 ft. lbs. (17 Nm).
  6.  
  7. Install the four upper oil pan to transaxle bolts.
  8.  
  9. Apply a 0.177-0.217 inch (4.5-5.5mm) bead of sealant to the lower oil pan. Attach the pan within 5 minutes of applying the sealant.
  10.  
  11. Install the lower oil pan. Tighten the lower oil pan bolts in sequence to 88 inch lbs. (10 Nm).
  12.  
  13. Install rear plate cover.
  14.  
  15. Install the remaining components is in the reverse order of removal.
  16.  
  17. Wait at least 30 minutes before refilling the engine with oil.
  18.  
  19. Start the engine and check for leaks.
  20.  
  21. Inspect the engine oil level.
  22.  


    Click image to see an enlarged view

    Fig. Apply a 0.15-0.197 inch (4-5mm) bead of sealant to the cylinder block mating surface of the upper oil pan-3.5L engine



    Click image to see an enlarged view

    Fig. Tighten the upper oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Apply a 0.177-0.217 inch (4.5-5.5mm) bead of sealant to the lower oil pan-3.5L engine



    Click image to see an enlarged view

    Fig. Tighten the lower oil pan bolts in this sequence-3.5L engine




Click image to see an enlarged view

Fig. Exploded view of the oil pan assembly-3.5L engine


NOTE
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 (CKP) sensor.

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove the front right hand wheel.
  4.  
  5. Drain engine oil and coolant.
  6.  
  7. Remove the oil dipstick.
  8.  
  9. Remove the engine undercover.
  10.  
  11. Remove the right hand inner fender splash shield.
  12.  
  13. Remove the A/C drive belt.
  14.  
  15. Remove the front exhaust tube.
  16.  
  17. Remove the coolant pipe bolts.
  18.  
  19. Discharge and recover the A/C refrigerant.
  20.  
  21. Remove the A/C compressor.
  22.  
  23. Disconnect the coolant lines from the engine oil cooler and plug the lines them to prevent coolant loss.
  24.  
  25. Remove the oil filter and engine oil cooler from the upper oil pan.
  26.  
  27. Remove the oil pressure switch, and the CKP sensor from the upper oil pan.
  28.  
  29. Remove the front driveshafts.
  30.  
  31. Remove the front suspension member as follows:
    1. Remove the left hand transaxle mount insulator nuts, if equipped with a 5 speed transmission.
    2.  
    3. Attach a engine lifting bracket to the transaxle at the location illustrated.
    4.  
    5. Install an engine support tool. Make sure the tool is securely resting on the hood ledge.
    6.  
    7. Remove the three transaxle mount insulator nuts.
    8.  
    9. Remove the lower ball joint bolt and separate the transverse link from the steering knuckle.
    10.  
    11. Remove the front exhaust tube.
    12.  
    13. Remove the power steering line bracket.
    14.  
    15. Remove the mounting bolts from the lower side of the steering gear.
    16.  
    17. Disconnect the front engine mount electrical connector.
    18.  
    19. Disconnect the connecting rod from the front strut.
    20.  
    21. Place a transmission jack under the front suspension member and remove the mounting nuts from the front suspension member.
    22.  
    23. Remove the front suspension member bolts from the pin stay on the vehicle body side.
    24.  
    25. Remove the through bolts from the front and rear engine mounts.
    26.  
    27. Lower the transmission jack to remove the front member. It may be necessary to remove the exhaust hanger bracket, the front and rear engine mounts and the transverse link to enable removal.
    28.  

  32.  
  33. Disconnect the Heated Oxygen (HO 2 S) sensors and Air Flow Ratio (AFR) sensors and remove the two three way catalysts from the exhaust manifolds.
  34.  
  35. Remove the rear plate cover from the upper oil pan.
  36.  
  37. Loosen the lower oil pan bolts in the sequence illustrated.
  38.  
  39. Remove the lower oil pan by inserting a suitable pry tool between the lower and the upper pans.
    NOTE
    Do not insert a screwdriver, this will damage the mating surfaces. Slide the Tool by tapping its side with a hammer to remove the lower oil pan from the upper oil pan.

  40.  
  41. Remove the four upper oil pan-to-transaxle bolts.
  42.  
  43. Remove O 2 S sensor wire retainer bracket.
  44.  
  45. Remove the upper oil pan by loosening the bolts in the sequence illustrated.
  46.  
  47. Insert an appropriate size tool into the notch of the upper oil pan as shown in the accompanying illustration.
  48.  
  49. Pry off the upper oil pan by moving the tool up and down as illustrated.
  50.  
  51. If re-installing the original oil pan, remove the old sealant from the mating surfaces using a scraper.

    Click image to see an enlarged view

    Fig. Location of the rear plate-3.5L engine



    Click image to see an enlarged view

    Fig. Loosen the lower oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Separate the lower pan from the upper pan using a suitable tool and a hammer-3.5L engine



    Click image to see an enlarged view

    Fig. Loosen the upper oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Pry off the upper oil pan by moving the tool up and down-3.5L engine

  52.  

To install:


CAUTION
Wait at least 30 minutes before refilling the engine with oil.

  1. Apply a 0.15-0.197 inch (4-5mm) bead of sealant to the cylinder block mating surface of the upper oil pan as illustrated. Attach the pan within 5 minutes of applying the sealant.
  2.  
  3. Install new O-rings on the cylinder block and oil pump body.

    Click image to see an enlarged view

    Fig. Apply a 0.15-0.197 inch (4-5mm) bead of sealant to the cylinder block mating surface of the upper oil pan-3.5L engine



    Click image to see an enlarged view

    Fig. Tighten the upper oil pan bolts in this sequence-3.5L engine



    Click image to see an enlarged view

    Fig. Apply a 0.177-0.217 inch (4.5-5.5mm) bead of sealant to the lower oil pan-3.5L engine



    Click image to see an enlarged view

    Fig. Tighten the lower oil pan bolts in this sequence-3.5L engine

  4.  
  5. Install the upper oil pan. Tighten upper oil pan bolts in the order illustrated to 13 ft. lbs. (17 Nm).
  6.  
  7. Install the four upper oil pan to transaxle bolts.
  8.  
  9. Apply a 0.177-0.217 inch (4.5-5.5mm) bead of sealant to the lower oil pan. Attach the pan within 5 minutes of applying the sealant.
  10.  
  11. Install the lower oil pan. Tighten the lower oil pan bolts in sequence to 88 inch lbs. (10 Nm).
  12.  
  13. Install rear plate cover.
  14.  
  15. Install the remaining components is in the reverse order of removal.
  16.  
  17. Wait at least 30 minutes before refilling the engine with oil.
  18.  
  19. Start the engine and check for leaks.
  20.  
  21. Inspect the engine oil level.
  22.  

 
label.common.footer.alt.autozoneLogo