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  1. 1

    cracked block 4.3 vortec

    :confused:I just got my boat back from an authorized dealer for replacement of a thermostat that they had installed. This thermostat failed after 2 hours of use. The oil that they just changed at this service, looks like light colored chocolate milk after idling for about five to ten minutes. I...
  2. 1

    4.3 vortec water in oil

    My engine is a reman 1998 vortec 4.3. When and who did the reman, I don't know. The engine now has 4 hours on it since the last service, when the oil was changed and the thermostat replaced. The thermostat was replaced because of the service interval, not because of problems. I had the boat out...
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