Cup Plugs Not Included with Replacement Cylinder Head

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Replacement cylinder heads ordered from GMSPO do not contain cup plugs.

Each head will require two plugs. Part numbers for the plugs are 94032652 and 94033681. Each head will require one of each. The plugs are used in the rear of the head.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.