Since you didn't give the much detail like the Year. For a 1999 Suburban it is 1-8-4-3-6-5-7-2.
As you look at the engine from the front.
Left side is 2-4-6-8
Right side is 1-3-5-7 [http://autorepair.about.com/od/enginefiringorders1/Engine_Firing_Orders.htm Go here to look it up] Good Luck and Remember.
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18436572
1,8,4,3,6,5,7,2
If you're looking for the firing order for a Chevy it's 18436572.
73 Chevy 350 firing order: 18436572 countercockwise
The cylinder order on the Chevrolet 5.3 liter engine, in your 2007 suburban, is one, eight, two, seven, three, six, four, five. The firing order can be found in your owners manual.
the firing order of a 6 cyl. Chevy is-----1,5,3,6,2,4 ( this is for an in line 6)
A diagram for a 2001 Chevy impala 3.4L engine & coil pack firing order
Knowing the firing order of an engine can help diagnose problems with the engine. The firing order of a Chevy 4.6 v6 is 1-6-5-4-3-2.
Firing order: 1-8-4-3-6-5-7-2
What engine?
Which engine?
Which engine?