[Image of spark plug diagram]
Firing Order: 1-8-4-3-6-5-7-2
Spark Plug Location:
1. Front passenger, cylinder 1
2. Driver's side back, cylinder 2
3. Driver's side middle, cylinder 3
4. Passenger side back, cylinder 4
5. Front passenger, cylinder 5
6. Passenger side middle, cylinder 6
7. Driver's side front, cylinder 7
8. Front passenger, cylinder 8
Spark Plug Specifications:
* Type: ACDelco R43TS
* Gap: .045"
* Thread: 14mm x 1.5
* Seat: Tapered
* Reach: 2.31