Generation III Internal Engine 1997-2006 LS1 | LS6
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Not your regular LOW oil pressure thread

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Old 02-18-2012 | 09:16 PM
  #21  
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Sounds like a cracked block to me. Think about it. Oil pressure is normal when cold. When it warms up, the crack expands and you loose oil pressure.

Saw this on a Pontiac once. Chased the problem for months...
Old 02-18-2012 | 10:20 PM
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yea but op is there any leaks at all

and also i would not suspect the block that would be the very last thing to rule out due to it being the most costly
Old 02-18-2012 | 10:56 PM
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Originally Posted by fastazzls1
yea but op is there any leaks at all

and also i would not suspect the block that would be the very last thing to rule out due to it being the most costly
No leaks, car is dry. Cracked block sounds like a possibility I suppose but I am mroe sure its the bearings
Old 02-18-2012 | 11:15 PM
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This one didn't leak either. Cracked inside through one of the oil galleys.




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