Seized spark plugs

Tiny
JOE1953
  • MEMBER
  • 2001 CHEVROLET MONTE CARLO
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 233,000 MILES
Spark plugs is hard to remove what is the best way to remove them?
Thursday, November 13th, 2025 AT 1:25 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 15,346 POSTS
Run the engine up to temperature, shut it off and prep the plugs by removing the coils and spray just a bit of penetrant in around the plug. Let the engine cool down and then remove them. Beyond that there isn't a lot that you can do. I know some folks who use a lower torque battery impact to remove them but I'm not that trusting of them coming out in one piece.
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Thursday, November 13th, 2025 AT 7:55 PM

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