American standard kitchen faucet roars when hot water turned on

The water lines have been connected incorrectly. Reverse the connections under the sink.

I f like most faucets it will have a aerator its at the end of the spout unscrew & clean...that should do the trick ';';';

Check the aerator and see if it is getting plug up.

the pressure in pipes has to do with the volume. The bigger the pipe the better the pressure. Take the time to trace out your hot water line and see if you can find any old galvonized pipe, thats usually the problem in most cases. galvonized pipe over time will rust and corrode causing restriction in the water line. replacing it with 1/2" copper should solve the problem.

It says you have a problem with the hot water. First thing to do is to turn the hot water supply valve under the sink off, and then remove the line from the valve to the faucet at the valve. Then put a bucket underneath the valve and turn it on (carefully). If you don't get any flow, then the problem is in the valve or the pipes supplying the faucet. If you get flow there, then the problem is in the supply line or possibly at the faucet.

I had the same problem. You need a "diverter" (044264-0070A). It's available directly from American Standard at no charge. Lifetime guarantee! Phone: 1-800-442-1902.

I would turn off the water then check to make sure you have good flow up to the faucet itself. If you do then there might be a proplem with the cartridge or diverter. does it have a sprayer? If it has a sprayer head for the spout of the faucet then there will be what the call a check valve inside the spray head itself that canbe removed with a skinny screwdriver or something thin and long

The metalic taste is coming from the the new faucet

I would call American Standard and ask them if they have any complaints for this particular model

I would run hot water through the faucet for 5 minute intervals

If it persists I would take it back and demand a refund or cal AS and demand a refund or replacement model

I am sure the local news would like to report something like this

The faucet cartridge is more then likely blocked and the faucet will have to be disassembled in order to unblock it.
While it is disassembled you should slowly turn on the water lines to make sure the water ways in the faucet are clear. And thoroughly check the cartridge for damage. Replace if necessary.
Replacement Cartridges can be purchased at most plumbing supply houses or Big Box Stores such as Lowes or the like.

Most likely you need to adjust the hot limit safety stop which restricts handle swing to limit the high temp of the water and avoid scalding... check out this link to the install manual for your faucet. Also includes detailed diagram of cartridge alignment just in case you need it.

http://www.americanstandard-us.com/Assets/pdfs/as/install/Install_1859.pdf

Hope this helps, Tripp