Originally Posted by red58
I'd clean off the dielectric grease and retighten the grounds - dielectric is non-conductive

Bill

Thanks for posting this, Bill. People regularly suggest using dielectric grease for enhancing conduction - they should look that up.

I use (and recommend) an anti-oxidant (and anti-corrosive) highly-conductive copper-impregnated grease that is available in all NAPA stores. many other people suggest similar highly conductive and highly anti-oxidizing greases used by electricians (and needed by code when using aluminum wiring).