GMC Other Repair Question
Firing Order for Buick Regal.
I don't see a 3.8 Liter engine listed in my manual, but I do see the following listings:
4 cyl.; 2.2L, 2.5L, and 2.3 L (Quad 4) firing order = 1-3-4-2
V6 cyl.; 2.8L, 3.1L, 3.4L - firing order = 1-2-3-4-5-6
V6 cyl. 3800 firing order = 1-6-5-4-3-2
Cylinders are numbered from the drive belt side to the trans. side as follows:
front = 1-3-5
rear = 2-4-6
Hope this helps.
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