Changed intake gasket now antifreeze in oil

1998 CHEVROLET ASTRO
300,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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MARKEJ65
  • MEMBER
  • 2 POSTS
Changed intake manifold gasket. Now loud knock in engine, and antifreeze in oil. Found that Felpro has had gasket problems with this engine.
Oct 2, 2019 at 10:16 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good morning,

I have never had issues with Felpro myself.

Can you upload a video of the knock?

Do you have coolant in the oil now or was that the original issue?

Roy
Oct 3, 2019 at 2:22 AM
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