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Tips and Maintenance Post helpful tips, maintenance guides and R&R procedures here (for both Pontiac Grand Prix and Oldsmobile Intrigue)
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Old 03-28-2007, 10:21 AM   #1
BNaylor
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2000 and Up 3100 LIM Gasket Procedure

Here is a helpful link one of our members posted concerning performing a lower intake manifold gasket replacement on the GM 60 degree engines. This is applicable to both the 3100 VIN "J" and 3400 VIN "E". 2000 and up Pontiac Grand Prix with the 3100 have the VIN "J". Note: This specific procedure is not applicable to the 3100 VIN "M" found in 1999 and under Grand Prix although there are similarities.

Click here


Revised torque pattern and torque values for LIM bolts.

Quote:
Engine Oil or Coolant Leak (Install New Intake
Manifold Gasket) # 03-06-01-010B - (10/24/2003)


Engine Oil or Coolant Leak (Install New Intake Manifold Gasket)

2000-2003 Buick Century

2002-2003 Buick Rendezvous

1996 Chevrolet Lumina APV

1997-2003 Chevrolet Venture

1999-2001 Chevrolet Lumina

1999-2003 Chevrolet Malibu, Monte Carlo

2000-2003 Chevrolet Impala

1996-2003 Oldsmobile Silhouette

1999 Oldsmobile Cutlass

1999-2003 Oldsmobile Alero

1996-1999 Pontiac Trans Sport

1999-2003 Pontiac Grand Am, Montana

2000-2003 Pontiac Grand Prix

2001-2003 Pontiac Aztek

with 3.1L or 3.4L V-6 Engine (VINs J, E - RPOs LG8, LA1)

This bulletin is being revised to change the model Information. Please discard Corporate Bulletin Number 03-06-01-O10A (Section 06 - Engine).


Condition

Some owners may comment on an apparent oil or coolant leak. Additionally, the comments may range from spots on the driveway to having to add fluids.

Cause

Intake manifold may be leaking allowing coolant, oil or both to leak from the engine.

Correction

Install a new design intake manifold gasket. The material used in the gasket has been changed in order to improve the sealing qualities of the gasket. When replacing the gasket, the intake manifold bolts must also be replaced and torqued to a revised specification. The new bolts will come with a pre-applied threadlocker on them.

Notice

An oil leak may result if the vertical bolts are not tightened before the diagonal bolts.


Diagonal bolts may require a crows foot to tighten.

Tighten

1. Tighten the vertical lower intake manifold bolts (1) to 7 N.m (62 lb in).

2. Tighten the diagonal lower intake manifold bolts (2) to 7 N.m (62 lb in).

3. Tighten the vertical lower intake manifold bolts (1) to 13 N.m (115 lb in).

4. Tighten the diagonal lower intake manifold bolts (2) to 25 N.m (18 lb ft).


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Last edited by BNaylor; 01-17-2008 at 12:31 PM.
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Old 07-27-2010, 11:31 AM   #2
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Cool Re: 2000 and Up 3100 LIM Gasket Procedure

It seem pretty straightforward; my only concern or challenge is the revised torque pattern and torque values for LIM bolts. Do I need a special tool to that will allow me to tighten the bolts at a specified torque? Have you done a LIM gasket procedure before Bob or Tim? Please check out the picture I posted previous to determine that leaking orange residue...thanks a lot fellas for the info.
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Old 07-27-2010, 08:09 PM   #3
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Re: 2000 and Up 3100 LIM Gasket Procedure

I have done a bunch of 3100/3400 LIM gaskets, a few 3800's, and a couple 5.7's on GM vehicles. You will definatly want to go with the fel-pro aluminum framed gaskets, make sure you get new bolts (fel-pro also carries these), and a 3/8 torque wrench is a must.
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Old 08-01-2010, 10:38 AM   #4
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Re: 2000 and Up 3100 LIM Gasket Procedure

Quote:
Originally Posted by Firstymer View Post
Please check out the picture I posted previous to determine that leaking orange residue...thanks a lot fellas for the info.
Do you have a link to the pic? Orange is normally Dex-cool.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

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