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White smoke coming out of the exhaust

Tiny
REDBONE
  • MEMBER
  • 1997 BUICK LESABRE
  • 3.8L
  • 2WD
  • AUTOMATIC
  • 204,000 MILES
I disassembled the top half of the engine and found that the intake gasket was cracked.I proceeded to tear it down to the head gasket and replaced the head gasket, all the gaskets from the head gasket on up are replaced and I still get white smoke.I pulled out the spark plugs and found that cylinders 3 and 5 had coolant in them. What will cause this?The heads are good, so could it be a crack in the block?
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Tuesday, September 17th, 2019 AT 2:42 PM

1 Reply

Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
Hi Redbone, welcome back

White smoke out the tail pipe is either caused by worn out valve guides or worn out piston rings. More commonly rings.

I would suggest a compression test to find out the state of your rings.

Here is a guide on how to do that:

https://www.2carpros.com/articles/how-to-test-engine-compression

Let us know if you need more help with this.

Rich
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Tuesday, September 17th, 2019 AT 6:10 PM

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