Hi all,
My S500 is making a noise which is quite loud. A few facts:
I was the first vehicle at a light in the middle lane and realized that I needed to take an onramp which was about 80 yards ahead on the right. When the light turned green I stomped on it to get safely ahead of the vehicles to my right so I could move over for the ramp. After switching lanes I came off the gas and hit the brakes for a quick bleed of some speed and the engine shut off. All of the warning lights were on and I couldn't restart the engine for I have Keyless Go and when I put it in neutral and tried hitting the button while stepping on the brake pedal nothing happened. The key was in my pocket. I pulled off to the side of the ramp, came to a full stop, inserted the key and she started right up. I proceeded back on the road and continued down the highway for about 15 miles, took the exit and came to a stop at a set of lights. It was at that moment that there was a very loud noise which sounded just like a bad power steering pump. So loud that the driver next to me rolled down his window and pointed at my car.
I took the car home and began looking under the hood. First to the power steering pump which looked ok and had fluid. I took a large screwdriver and began listening to various units to see if one was noisier than the others. All seemed ok. I removed the serpentine belt and started the car to confirm any of the units making noise and the noise was still present.
I removed the engine cover and the noise seems to be louder from the center and toward the back of the motor. Almost as though it is emanating from around the firewall area and underneath.
Any thoughts on what it may be? All systems seem to work and there are no warning lights on.
Frank