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car-pro, Chevy Mechanic
Category: Chevy
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Experience:  15 years experience all General Motors Vehicles--Certified Service Manager
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firing pattern for a 1988 gmc sierra 1500 manual 4.3 litter v6

Customer Question

what is the firing pattern for a 1988 gmc sierra 1500 manual 4.3 litter v6
Submitted: 8 years ago.
Category: Chevy
Expert:  car-pro replied 8 years ago.

Hi, thanks for the question. The order is 1-6-5-4-3-2. The cylinders are 1-3-5 down the drivers side bank starting at the front bumper and 2-4-6 down the passenger side bank. Distributor rotation is clockwise. Thanks

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