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1986 Pontiac Firebird 2.8 Liter Firing Order
Yes
I have an '87 s10 with a 2.8L v6, the firing order is 123456. I am quite sure that your firebird is the same.
The firing order on a 1986 Chevrolet Celebrity V6 is: 1-2-3-4-5-6.
firewall 3 - 6 2 - 5 1 - 4 front of Ford Ranger ( V6 engine ) The spark plug firing order is ( 1 - 4 - 2 - 5 - 3 - 6 )
3.8 engine rotation
1-4-2-5-3-6 Distributor rotates Clockwise.
For a v6 it is 123456 and for a 4 cylinder it is 1342. The distributor caps should also have the piston numbers marked on top.
1-4-2-5-3-6
1, 6, 5, 4, 3, 2.
In any engine it usually means your piston rings are worn.
how to change a timming belt on a 1986 Nissan pickup v6