This...... pull the rad, or i can do it. And either get it checked, will cost you $$$, for the check. Then they will either say, it fubar, more $$$, or you just bite the bullet and replace it anyway. Still $$$, but less than a check and new rad.
That is. If its just cooling issue you have. Not something more sinister. Then you will no choice but to get a professional to take it further. Compression and sniff test would be the first i would be doing.
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