Cracked Valve Cover Leaking causing Engine Light to come on

Yes it is! I blame incompetancy at that dealership; afraid to take it back there although they are responsible for covering up the leak problem; Get this, I just received a recall letter today to repair a posssible Coolant Leak. I suspect there was a leak at my original post dealing with Campaign 14417 @50,857 mi, but the dealer repair rep & Mgr. were adamant that my cars' overheating and Engine light staying on was just a needed Engine Coolant Fan ( of which I had replaced with a GM Part much cheaper than the quote of $450 deductible). Now, I have Oil leaking because they decided there was a crack in the valve cover (didn't want to admit they maybe accidentally cracked it trying to find the Overheating problem, my engine was spotless, never had to open it except for oil change, 52,469 mi); Did not once tell about this cover replacement until, I decided to pick up my car to find a more affordable Coolant Fan (Thks to the advice from guys on this forum).I suspect there was always a leak but they inspected my car(campaign 14417) and 2 hours later, released it back to me "stating", not written on the inspection receipt 9/29, "there was NO leak, coolant reservoir was full". Tomorrow, I'm going to take it to another Chevy dealer repair shop and hope that they can do these jobs correctly so I can once again enjoy my Cruze.