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  1. #1

    Default Oil leak after oil change HELP

    Just bought a used 99 Surburban 177K on the burb no oil leaks. Starting to go through and cleaning & fixing small things. Went and changed my oil and now have an oil leak on the back cylinder passenger side. Before I changed the oil had 40# of oil pressure, I put in Castrol High
    Mileage in with new fram filter & have 42# at idle & 50# at higher rpm now, then the leak started. The drip is a drop every few seconds, is the head gasket bad? It's hard to see up in that back corner.

    Any ideas why the change started after a oil change?

  2. #2


    Sounds like your oil pressure switch is going south.

  3. #3


    Quote Originally Posted by Chris Miller View Post
    Sounds like your oil pressure switch is going south.
    Switch is fine, no oil around it that I feel, more ideas please!

  4. #4


    It's the head gasket, I see green drips, the good old number 8 cylinder issue.

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