I recently purchased a 1992 mercury sable. the owner said the back brakes needed to be replaced and the muffler. However, the dashboard lights come on and then it suddenly stops. i then cannot turn it on right away. it isnt until its been sitting awhile that i can turn it back on later. now, the owner had it sitting in his garage for about 3 years with the same gas, could that be the problem or has anyone heard of mercury sables suddenly stopping?