SUSPECTED BLOWN HEAD GASKET.

  • Tiny
  • philmitchinson1
  • 1999 Chevrolet Lumina
  • 6 CYL
  • 2WD
  • automatic
  • 165,000 miles

Bubbling in radiator water and loss of water suggests blown head gasket. How do I test which bank/cylinder is blown (3.8L Chev Lumina v6)?
Regards, Phil Mitchinson- New Zealander currently living in the UAE.

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Sunday, January 23rd, 2011 AT 4:57 PM

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  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

You could pull the spark plugs and pressurize the cooling system to see which cylinders fill with coolant. I would tend to think that if one cylinder heads needed to come off, that the other might just as well come off to as insurance against having to do the job twice.

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Sunday, January 23rd, 2011 AT 5:03 PM
  • Tiny
  • Wrenchtech
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  • 20,266 posts

I don't know why it would matter. If the engine got hot enough to damage one side, there is likely damage to the other side too and it would be very foolish to only remove one head after going that far.

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Sunday, January 23rd, 2011 AT 5:43 PM
  • Tiny
  • Dr. Hagerty
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  • 9,717 posts

As usual, my fellow moderator has made an excellant point and I couldn't agree more.

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Sunday, January 23rd, 2011 AT 5:58 PM
  • Tiny
  • philmitchinson1
  • Member

Thanks for your advice guys.

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Monday, January 24th, 2011 AT 2:35 AM
  • Tiny
  • Dr. Hagerty
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  • 9,717 posts

OK

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Monday, January 24th, 2011 AT 2:40 AM

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