Glow plug removal

Tiny
DAVIDBAINES
  • MEMBER
  • 2007 GMC SIERRA
  • 6.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Tips to get glow plugs out of Duramax lbz without breaking them.
Saturday, November 26th, 2016 AT 4:17 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,629 POSTS
Hello,

Start with the engine warm not hot. Spray WD40 around the glow plugs and let them sit for at least an hour. Then crank them loose two turns then go back in 1 turn continue to do this until they are completely loose.

Here are some diagrams of how the job is done (below)

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Wednesday, January 31st, 2018 AT 3:50 PM

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