Firing order is the same as a small block Chevy 18436572 clock wise
what is the coil firing order on a 1998 chevy venture van with a 3400 engine?
Clockwise, 1, 6, 5, 4, 3, 2.
If it is a 5.7L or 5.0L the firing order is 18436572.
1,3,5,7,2,4,6,8,
1.6.5.4.3.2
Chevrolet Astro Van 2WD4.3 liter V-6
2.5 Liter 4 cylinder is 1-3-4-2 4.3 Liter V6 is 1-6-5-4-3-2
Most Chevy v8's are 18436572.
18436572
fireing order for 1997 astro van v6
18436572
1-8-4-3-6-5-7-2 #1 cyl is first on left bank.