I just got my car out of the shop,it was there for 2 months because it was overheating. they replaced the head gasket,cylinder head, radiator, thermostat, and coils. This cost me about $2,600. And now when i take it home my engine light comes on and the car begins to shake, what can it possibly be now??....i have a 2002 Honda Civic Ex...someone please help or give me some input...thanks.