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4.0 thermostat

  1. General Jeep Cherokee Discussion
    I replaced my thermostat and gasket, coolant was leaking. I then purchased a new thermostat housing and another gasket, still leaking. I've used RTV both times and it's still leaking. What am I doing wrong? Should I use an actual sealant? Also, when I put the new thermostat in, it fits but it's...