My 1991 GMC Safari has been leaking power steering fluid since I bought the vehicle 6 months ago... I've been using the stop-leak fluid on it, but it's gotten worse. It was leaking a pint a month, now it's two pints a week. I can see that the puddle is on the driver side, but other than that I can't tell where the leak is. (Everything in the engine area there is black.) I'm also having trouble starting the car. Could the leaking power steering fluid be dripping on the starter and fouling it out? I don't know where the starter is on this vehicle.