We purchased an American Standard kitchen faucet model 4040 an couple of years ago. Worked great after installation, but not long after water just started coming out, both hot and cold, at a trickle. We have removed the aerator and cleaned it, but it has not helped.

American Standard has the Installation Guide for some of their kitchen faucets on each product's page. A list of some of their two-handle kitchen faucets is available here: https://www.americanstandard-us.com/kitchens/kitchen-faucets?No.%20of%20Handles=Two&page=1&plimit=21 . Home Depot has the Installation Guide for the Heritage wall-mount faucet with Goose Neck spout on the product page: https://www.homedepot.com/p/American-Standard-Heritage-2-Handle-Wall-Mount-Kitchen-Faucet-in-Polished-Chrome-with-Gooseneck-Spout-7293-252-002/100080273 . The current link to the guide is https://images.homedepot-static.com/catalog/pdfimages/de/deca2fce-73fc-47a2-acb5-efc7232dac17.pdf .

These are standard plumbing installation guides. They condense most of the steps of the hardware install into one diagram/step of the guide.

I hope this helps. If you need further assistance, please add more information on the style of your faucet. (Is it a wall-mounted faucet or a sink-mounted faucet?)

Cindy Wells

Turn counterclockwise

I checked online at www.plumbingwarehouse.com/american-standard-kitchen-faucet-hamilton-4040. There is a diagram that shows a seal kit that probably needs to be replaced. The diagram is really good and shows a complete breakdown of your faucet. I hope this helps.

I had the same issue with an American Standard faucet that I installed new 6 months ago. The diverter can be the issue if you have a sprayer attachment. Try unscrewing the sprayer head from the hose it's attached to. Now run the water full pressure with the hose pointed into the sink, obviously :~). After running the water for about 1 minute, connect the sprayer head back onto the hose, make certain the flat rubber washer and ring gaskets are seated in their grooves properly, and tighten until you have no water leaking from the sprayer head/hose connection. Now try the water through the faucet. If the problem was a temporary diverter issue, your pressure should be fine now. Good luck

Contact A/S via web site they will probably send you a new diverter free if you raise enough stink about having this problem and you would just buy another brand faucet.

Using the number you gave it is an American Standard faucet here is a link to a parts place.
I would use the factory parts.

http://americanstandard.faucetdirect.com/index.cfm?page=product:partsDisplay&productId=4205.104&manufacturer=American%20Standard

Silly question, but did you turn the shut offs back on after installing? If so, the aerator is probably clogged (the screen on the faucet). Unscrew it and clean it out. Good luck

If it has a side spray the diverter might be stuck. try flicking the spray handle on and off.

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