Hi, my 2007 focus 1.6 tdci has developed a sort of whining noise about a week ago and yesterday the ignition light came on while driving.
About the noise: not sure if i can say its a whine but it sounds like a sort of electrical motor and its more evident when the engine is cold and i can hear it even if i am stationary. Its proportional to the rpm. For some reason i can hear it better/clearer from inside than from in front of the hood. I did not notice a big sudden drop in mpg, although it might be feeling a bit less powerful. The noise does not change if i turn the steering. Oil level is also fine. I dont think its the turbo although i could hear a suction noise when i lift off after i am accelerating - almost like a dump valve sort of noise - but that i suspect is a separate problem.
Hope someone can help me. Thanks a lot.