3100/3400 intake gasket revision

[patgizz]

if this isnt on the site(couldnt find it) someone might wanna take the info posted about the revised intake gaskets and which cars/engines they affect and the part # for the new ones out of this post and use it on the site under the 3x00 area.

http://www.chevytalk.org/threads/showflat.php?Cat=&Number=795416&page=0&view=collapsed&sb=5&o=7&fpart=1

[SappySE107]

Ill be sure to add this in the new site. Ill probably work on the layout tonight since im in the mood for some HTML (hahaha, what!). I just wanna get the new site done and start using it since it rocks Thanks for the info!

[bszopi]

I have the actual GM TSB about this. It has been discussed before in the pushrod area, but don't think the TSB was ever posted. I'll see if I can't get the TSB to you, Ben, in the next day or two.

[bszopi]

Here is the actual TSB...

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

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 03-06-01-010A (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 7N·m (62 lb in).
2. Tighten the diagonal lower intake manifold bolts (2) to 7N·m(62 lb in).
3. Tighten the vertical lower intake manifold bolts (1) to 13N·m(115 lb in).
4. Tighten the diagonal lower intake manifold bolts (2) to 25N·m(18 lb ft).

Parts Information

Part Number--------Description---------------------Qty

89017279-----------Intake manifold Gasket-----------1

11588915-----------Intake manifold bolt - short-----4

11588914-----------Intake manifold bolt - long------4

[XLR8ING]

Thanks Brad, I need those numbers for when I do my Venture's intake gasket. Likely in a month or so.

[Rhedalert]

I don't understand why they exclude vin M. I have a set of new-style gaskets here and the only difference I see is that it has the pushrod guides for the roller setup.