Replaces

1997-2003 Pontiac Grand Prix Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)

Part Details

  • Location: Lower

This part replaces:

  • DORMAN 615-280
  • OE # 24508923
  • HOLLANDER 329-01655

  • New

Specifications:

  • Brand new Lower Intake Manifold
  • Replaces dealer part number: 24508923      
  • Direct replacement
  • Aluminum construction
  • Fits 3.8L non supercharged models ONLY

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. Removing the Air Intake (1:02)
    • Vacuum any dirt surrounding the manifold to prevent debris from entering the engine
    • Disconnect the air intake sensor harness
    • Remove the two screws on the air box with a flat blade screwdriver
    • Remove the air intake hose and air box cover
  2. Removing the Mass Air Flow Sensor and Throttle Body (1:49)
    • Remove the 8mm bolt from the bracket below the throttle body
    • Adjust the bracket out of your way
    • Remove the three 10mm bolts from the mass air flow sensor
    • Disconnect the mass air flow sensor harness
    • Disconnect the idler control valve wiring harness
    • Disconnect the two vacuum hoses
    • Remove the mass air flow and throttle body
  3. Removing the Fuel Lines (3:32)
    • Disconnect the vacuum hose
    • Disconnect the pressure sensor harness
    • Remove the spark plug wires from the clip on the manifold
    • Remove the harness attached to the manifold
    • Disconnect the six fuel injectors
    • Remove the four 10mm nuts holding the fuel rail
    • Pry up under the injector rail with a flat blade screwdriver
    • Cut the zip ties with wire cutters
    • Pull the injector rail up
  4. Removing the Upper Intake Manifold (6:06)
    • Remove the nine 8mm screws along the manifold
    • Remove the 10mm at the end of the manifold
    • Remove the wiring harness clip
    • Bend the bracket out of the way with a flat blade screwdriver
    • Remove the 10mm from the EGR bracket
    • Press the tabs and pull out the pipe
    • Remove the intake manifold
    • Vacuum any debris in the area
    • Clean the lower intake manifold with a rag and mineral spirits or gasoline
  5. Torque the 8mm nuts to 2 foot-pounds in this order: rear middle bolt closer to the passenger side, middle bolt directly across, front bolt closer to the driver side, front bolt directly across, rear bolt passenger side, rear bolt directly across, front bolts closest to the driver side, front bolt across, rear bolt closest to the passenger side, rear bolt across

  6. Installing the Intake Manifold (8:49)
    • Make sure the sleeve in the lower manifold is snug
    • Place a piece of wood over the pole and tap it with a hammer to ensure it's fit
    • Insert the upper intake manifold into place
    • Insert all of the 8mm bolts and the 10mm and lightly tighten them
    • Torque the 8mm nuts to 2 foot-pounds or 24 inch-pounds
    • Repeat the order with 4 foot-pounds or 48 inch-pounds
    • Repeat the order with 8 foot-pounds or 90 inch-pounds
    • Push in the tabs on the pressure sensor and remove it
    • Insert the pressure sensor to the new manifold
    • Remove the two vacuum lines from the PCV fitting
    • Remove the PCV fitting from the hose
    • Install the new PCV fitting to the hose
    • Connect the vacuum lines
    • Insert the PCV fitting to the intake manifold
  7. Reinstalling the Fuel Lines (14:07)
    • Insert the fuel rail in place
    • Seat all of the fuel injectors into place
    • Insert the four 10mm nuts to the fuel lines
    • Torque the bolts from 10 to 12 foot-pounds
    • Connect the fuel injector harnesses
  8. Reinstalling the Mass Air Flow Sensor and Throttle Body (15:35)
    • Insert the mass air flow sensor and throttle bottle in place
    • Insert the three 10mm bolts to the manifold
    • Push the bracket in place and secure it with the 8mm bolt
    • Connect the mass air flow sensor harness
    • Connect the idler control valve wiring harness
    • Connect the three vacuum hoses
    • Push the spark plugs wire into their clip
  9. Reinstalling the Air Intake (16:30)
    • Insert the EGR bracket in place and tighten it with a 10mm nut
    • Insert the air intake hose and box in place
    • Tighten the screws to the air box
    • Plug in the air intake sensor
    • Wire-tie the harness
    • Connect the pressure sensor harness

Tools needed for replacement:

    General Tools

  • Hammer

  • Materials, Fluids, and Supplies

  • Block of Wood
  • Cloth Rags
  • Mineral Spirits
  • Wire Ties

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Ratchets & Related

  • Ratchet
  • Socket Extensions
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket
  • 10mm Socket

  • Specialty Tools

  • Vacuum

How-to Video:

(17:38 min)

Tools List:

    General Tools

  • Hammer

  • Materials, Fluids, and Supplies

  • Block of Wood
  • Cloth Rags
  • Mineral Spirits
  • Wire Ties

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Ratchets & Related

  • Ratchet
  • Socket Extensions
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket
  • 10mm Socket

  • Specialty Tools

  • Vacuum



This part replaces:

  • DORMAN 615-280
  • OE # 24508923
  • HOLLANDER 329-01655

Vehicle Fit

  • 2005-2009 Buick Allure Lower Intake Manifold for V6 3.8L
  • 2005-2009 Buick LaCrosse Lower Intake Manifold for V6 3.8L
  • 1996-2005 Buick LeSabre Lower Intake Manifold for V6 3.8L
  • 2006-2008 Buick Lucerne Lower Intake Manifold for V6 3.8L
  • 1995-2005 Buick Park Avenue Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1996 Buick Regal Lower Intake Manifold for V6 3.8L
  • 1997-2004 Buick Regal Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995-1997 Buick Riviera Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 2000-2003 Chevy Impala Lower Intake Manifold for V6 3.8L
  • 2004-2005 Chevy Impala Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1998-1999 Chevy Lumina Lower Intake Manifold for V6 3.8L
  • 1998-2003 Chevy Monte Carlo Lower Intake Manifold for V6 3.8L
  • 2004-2005 Chevy Monte Carlo Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995-1999 Olds 88 Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995 Olds 98 Lower Intake Manifold for V6 3.8L
  • 1996 Olds 98 Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995 Olds 98-Regency Lower Intake Manifold for V6 3.8L
  • 1996 Olds 98-Regency Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995-1999 Olds Delta 88 Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995-1999 Olds Delta 88-Royale Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1998-1999 Olds Intrigue Lower Intake Manifold for V6 3.8L
  • 1996-1999 Olds LSS Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 1995-2003 Pontiac Bonneville Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 2004-2005 Pontiac Bonneville Lower Intake Manifold for V6 3.8L
  • 1997-2003 Pontiac Grand Prix Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 2004-2007 Pontiac Grand Prix Lower Intake Manifold for V6 3.8L (excluding Supercharged Models)
  • 2008 Pontiac Grand Prix Lower Intake Manifold for V6 3.8L
$199.95
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List: $659.76 Save: $459.81
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Part #: 1AEIM00043

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