gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

All Technical Service Bulletins for Engine Oil Pressure: > < Engine - Loss of Oil Pressure or Turbocharger Failure
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2.

Clean bores for plugs from any oil and dry.

3.

Use P/N 12345493 on new plugs following manufacturer's directions.

4.

Install new cup plugs, P/N 10105918, to a depth that the top lip of plug is at bottom of chamfer but not too deep to block oil feed passages (see
Figure 2).

5.

If plug(s) have fallen out, locate and remove them; plugs are probably in the oil pan.

Part Information:

Description

Part Number

Quantity

Cup Plugs

10105918

2

Sealer

12345493

1

Parts are currently available from GMSPO. The new engines will come with new cup plugs (P/N 10105918) and chamfer change.

Warranty Information:

For vehicles repaired under warranty, use:

All Technical Service Bulletins for Engine Oil Pressure: > < Engine - Loss of Oil Pressure or Turbocharger Failure