1-6-5-4-3-2
Cylinder order is drivers side...1,3,5 and 2,4,6, on the passenger side. Double check the wiring order to make sure that it is correct.
1.8.4.3.6.5.7.2
1,5.3,6.2,4
We need to know size engine you have.
Which engine? 5.7liter vortec
Firing order is 1-5-3-6-2-4
the wiring order is 1342
18436572
The firing order for the 4.3L engine is 165432
I believe it is 18436572 1.8.4.3.6.5.7.2
Start in the middle and go in a circle