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I need firing order for 2009 5.3 vortec . I want to change sparkplug on # XXXXX cylynder.

 
Neal's Avatar
  • Answered by:Neal
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Customer Question

I need firing order for 2009 5.3 vortec . I want to change sparkplug on # XXXXX cylynder. I pulled code po307 cylinder misfire

 

Country: United States
Make: Chevrolet
Model: Z-71
Year: 2009
Engine: 5.3 vortec

Already Tried:
nothing was going try spark plug first. Also the truck has 52.000 miles

Submitted: 673 days and 6 hours ago.
Category: Chevy
Value: $18
Status: CLOSED

Accepted Answer

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Expert:  Neal replied 673 days and 6 hours ago.

Welcome to JustAnswer, I'm here to help get your problem resolved. Please feel free to ask follow up questions, it is part of the process.

The firing order is

1-8-7-2-6-5-4-3

#7 is rear plug on drivers side.

If that does not work I will continue to assist even after you accept as needed.

Expert TypeChevy Mechanic
Category: Chevy
Pos. Feedback: 96.7 %
Accepts: 2280
Answered: 7/12/2011

Experience: Shop Owner and Mechanic on multiple makes.

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