Losing oil pressure On 1993 Chevy K1500 pu 4.3L


  #1  
Old 02-10-13, 09:34 AM
R
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Losing oil pressure On 1993 Chevy K1500 pu 4.3L

On my 1993 Chevy K1500 PU 4.3L with 80,000 miles, when it warms up it loses oil pressure (less than 15psi). It nocks in drive. I think I know what it is, but want to hear from others. Thanks
 
  #2  
Old 02-11-13, 05:40 AM
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Well the normal answer would be loose bearings,altho I cant imagine why at this low mileage.
 
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Old 02-11-13, 07:59 AM
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Could be worn cam brgs, worn main brgs or both. It would be wise to park it until the problem is found and fixed. Sounds hard to believe at 80K mi unless it's had a rough life.
Mike
 
 

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