over the past my car has been getting a little hard to start when cold, it didn't take long till it began to give me a little trouble starting when it got warm, it has steadily gotten worse to the point it won't even start, about the time the starting issue started, i noticed a light cloud of smoke at idle, and now it pours smoke out at idle, it's also down on power, does this sound like the IP? I don't think it's glow plugs since the light stays on about 7 sec's, I know my ford's won't turn the light on at all if one goes out, plus it is hard to start hot now.