During the past few days the kitchen faucet has begun to pulse when we turn on the water. We are on city water and there doesn't seem to be any air causing the problem. The faucet neck physically jumps and inch or so when the water is running. This occurs more under a medium flow than during high volume discharges.

Depending on the faucet brand and style, there could be diverter rattling inside the faucet causing this condition, or a loose washer.

The faucet would need to be taken apart and inspected/repaired.

Good Luck. e-plumber

I removed the flow reducer after the pulsing started thinking that might be the cause. I have great flow now but still get the pulses. Could the water meter or a check valve be causing this? If so, who fixes it; Me or the city?

It could be the pressure reducing valve, you would have to pay for that, I don't see how it could be the meter, although if it is they are responsible for it.

Thanks for the advice. Last evening I was able to find the problem. The hose that connects to the bottom of the faucet that goes to the spray head had loosened. When the water was turned on it would suck a little air in and then seal. It would do this once or several times depending on the pressure.

I tightened the fitting and voila, no more pulsing.

Add that one to your bag of tools. Thanks again for your help and advice.