Stop in for a cup of coffee

So, mysterious coolant leak was a nicked coolant hose. That no one could find. Guy has been pouring coolant in it for 2 years. 15 psi on my rad tester and it was pissing coolant. They didnt try too hard.
05 impala signals dont work in cold weather. Flaser/signal relay is faulty. Just put it in freezer to prove my theory.