2006 Nissan Altima Logo
Posted on Oct 15, 2010
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Trying to remove an alternator from an 06 altima

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Duane Wong

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  • Nissan Master 6,826 Answers
  • Posted on Oct 15, 2010
Duane Wong
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Joined: Jun 20, 2010
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Removal and Installation L4-2.5L (QR25DE) Engines To Remove:
trying to remove an alternator from an 06 altima - nis_alt_l4_alt.gif

  1. Before servicing the vehicle refer to the precautions at the beginning of this section.
  2. Remove or disconnect the following:
    • Negative battery cable
    • Engine cover
    • Front/right-side engine undercover
    • Drive belt
    • Alternator harness connector
    • Engine ground wire from top mount
    • Alternator upper and lower mounting bolts
  3. Set the alternator aside and remove the top mount.
  4. Remove the alternator.
To Install:


  1. Slide alternator in place.
  2. Install or connect the following:
    • Alternator top mount
    • Alternator upper and lower mounting bolts
    • Engine ground wire from top mount
    • Alternator harness connector
    • Drive belt
    • Front/right-side engine undercover
    • Engine cover
    • Negative battery cable
V6-3.5L (VQ35) To Remove:
  1. Before servicing the vehicle refer to the precautions at the beginning of this section.
  2. Disconnect the negative battery cable.
  3. Drain coolant from the radiator into a suitable container.
  4. Remove or disconnect the following:
    • Radiator
    • Front/right-side engine under cover
    • Drive belt
    • Idler pulley
    • Alternator adjustable top mount
    • Alternator lower mount bolt and nuts
    • Alternator lower front bracket bolt
    • Alternator harness connectors
    • Alternator
To Install:
nis_alt_chg_v6.gif

  1. Install or connect the following:
    • Alternator in place
    • Alternator harness connectors
    • Alternator lower front bracket bolt
    • Alternator lower mount bolt and nuts
    • Alternator adjustable top mount
    • Idler pulley
    • Drive belt
    • Front/right-side engine under cover
    • Radiator
  2. Replace the engine coolant.
  3. Connect the negative battery cable.
  4. Start the engine and check for leaks.
  5. Recheck coolant level and top off atrying to remove an alternator from an 06 altima - prev.gif.
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The alternator is right on top of the 2.5L motor and held on by 2 14mm bolts. To remove the lower bolt (hard to reach), you must remove the coolant bottle and the IPDM fuse board and its metal box/bracket. A breaker bar really helped give enough torque to loosen the bolts. Approach the drive belt from under the front passenger tire. There is a tension adjuster (hard to reach) bolt that loosens the belt and allows you to remove it from the alternator.
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