1,5.3,6.2,4
The firing order for the 4.3L engine is 165432
18436572
1-8-4-3-6-5-7-2 Rotor turns clockwise.
I believe it is 18436572 1.8.4.3.6.5.7.2
Same as all GM 4.3 vortec V6's: 1,6,5,4,3,2
Firing order 1-6-5-4-3-2
1-6-5-4-3-2
1342
The firing order for a 1996 GMC Sierra 1500 with a 5.7-liter Vortec engine is 1-8-4-3-6-5-7-2. This order is standard for small block Chevy engines, which includes the Vortec series. This sequence ensures smooth engine operation and efficient power delivery.
18436572
1-8-4-3-6-5-7-2
The firing order for a 1997 GMC Safari with a V6 engine is 1-6-5-4-3-2. This order is crucial for the proper operation of the engine, ensuring that the cylinders fire in the correct sequence for optimal performance.