My 05 dodge caravan is leaking antifreeze about a quart a week with light local city driving about 100 miles a week. Initially was hoping for the radiator or water pump to be bad but now not so sure. Put dye in radiator overflow tank and now seeing leaking around top of engine. Also does not seem to be building up pressure as I can clamp the hose together with my hand after the engine has been running for 10 minutes. Not sure how this is supposed to clamp as I have never tried it before. Car heater does start working after about 5 minutes.

 

head gasket I think it is

 

Is it difficult to replace the head gasket.

 

honestly have not done one but think right tools its possible.