K 3500 Truck 4WD V8-454 7.4L VIN J SFI (1996)
Parts Information/Customer Notification
Parts required to complete This campaign are to be obtained from General Motors Service Parts Operations (GMSPO). Please refer to your "involved
vehicles listing" prior to ordering requirements. Normal orders should be placed on a DRO = Daily Replenishment Order. An emergency requirement
should be ordered on a CSO = Customer Special Order
Part Number
Description
Quantity/Vehicle
12534215
Gasket Kit, Upper Intake Manifold
1
12345493
Threadlocker Loctite 272 (Red)
3 ml
NOTICE:
Threadlocker Loctite 272 (p/n 12345493) comes in 10 ml container and is sufficient to coat bolts for approximately 3 vehicles.
Customers will be notified of this campaign on their vehicles by General Motors (see copy of divisional customer letter(s) included with this bulletin).
Dealer Campaign Responsibility
All unsold new vehicles in dealers possession and subject to this campaign must be held and inspected/repaired per the service procedure of this
campaign bulletin before customers take possession of these vehicles.
Dealers are to service all vehicles subject to this campaign at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time
forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the
dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in
this bulletin. This could be done by mailing to such customers a copy of the appropriate divisional customer letter accompanying this bulletin. Campaign
follow up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this campaign enters your vehicle inventory, or is in your dealership for service in the future, please take the
steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.
Service Procedure
1.
Note settings of all electrical devices and then disconnect negative battery cable.
2.
Remove air intake assembly.
3.
Remove throttle cable end from throttle body.
4.
Remove throttle cable from bracket and move aside.
5.
Remove left front and left rear wire harness brackets.
6.
Remove right front and right rear wire harness brackets.
7.
Remove ignition coil from intake manifold.
8.
Remove purge and PCV hoses.
9.
Remove EGR pipe from adapter on upper intake manifold.
10.
Disconnect all electrical connectors on components attached to upper intake manifold.
11.
Remove (8) upper intake manifold bolts.
12.
Remove upper intake manifold.
13.
Remove the upper intake manifold gaskets and clean sealing surfaces with scraper as needed (Notice, use care when cleaning not to damage
sealing surfaces with scrapers or other tools.)
14.
Install new upper intake manifold gaskets from kit P/N 12534215 onto lower intake manifold.
15.
Install upper intake manifold.
16.
Coat the (8) upper intake manifold bolts a minimum of 8 lower threads of each bolt with Loctite 272 (GM P/N 12345493).
