Exhaust Manifold Bolt - Usage
File In Section: 6 - EngineBulletin No.: 47-66-03
Date: September, 1994
INFORMATION
Subject:
Exhaust Manifold Bolt Usage
Models:
1994 Buick Roadmaster
1994 Cadillac Fleetwood with 5.7L Engine (VIN P - RPO LT1)
1994 Chevrolet Caprice, Impala with 4.3L or 5.7L Engines (VINs P, W - RPOs LT1, L99)
Vehicles built before the VIN breakpoints may have exhaust manifold bolts that bottomed out during assembly.
During any exhaust manifold service to the vehicles listed, install bolt 15538420 at locations 21, as indicated in the figure. At all other locations, install the standard replacement bolts. Apply a 1/8 inch bead of GM adhesive 12345493 to the bolt threads before reassembly.
Part Information:
Description Part Number
Exhaust Manifold Bolt 15538420
Adhesive 12345493
Parts are currently available from GMSPO.
Warranty Information:
Labor Operation Labor Time
T2540 0.9 Hour