1986 GMC Sierra firing order

Tiny
32RENZ
  • 1986 GMC SIERRA

Engine Performance problem
1986 GMC Sierra V8 Two Wheel Drive Automatic

I need the firing order on gmc suburban

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Tuesday, November 4th, 2008 AT 10:11 PM

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Tiny
MHPAUTOS
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The firing order is 1 8 4 3 6 5 7 2 driverside head 1357 passenger 2468
get #1 cylinder up on compression stroke and see where the rotor is pointing this will be the start of your firing order goes clockwise

Mark (mhpautos)

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Tuesday, November 4th, 2008 AT 10:34 PM

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