1987 gmc v2500

  1. Y

    Leaking head gasket?

    Hi, this is my first post but I have been using this forum for information for a while now. I have a 1987 gmc v2500 5.7l. My issue is that my coolant turned from the normal slightly dirty/rusty to black with a touch of green from the Prestone within a couple of days. I noticed I had lost oil...
    • youcancallmedusty
    • Thread
    • 1987 gmc v2500 5.7l blown head gasket dark coolant diagnostic head gasket leak sierra troubleshooting v2500
    • Replies: 9
    • Forum: Tech Discussion

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