Hi and thanks for using 2CarPros.
Since there was an overheating issue, was it using coolant? If you remove all the plugs, will it turn? I am questioning if one of the cylinders is hydro locked due being full of coolant resulting from a bad head gasket.
Also, confirm that this is a 3.9L V6
Wednesday, December 5th, 2018 AT 7:11 PM