I need to know the tightening sequence for my cylinder head bolts.

Tiny
SAMPLES98
  • MEMBER
  • 2009 GMC SIERRA
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
I can’t find the tightening sequence for my specific make and model anywhere online. My engine has 13 bolts per head.
Friday, February 13th, 2026 AT 5:47 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,413 POSTS
Let me know if you can't read the numbers in the fourth image. You can copy and paste it into a typing program such as MS Word, where it can be expanded, or I can put some larger callouts on it for you.

The special tool they're referring to is: J 45059 - Angle Meter. You may be able to borrow a comparable tool from an auto parts store that rents or borrows tools. Let me know if you don't know what they're referring to for the procedure.
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Friday, February 13th, 2026 AT 7:20 PM

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