Dishes still dirty after wash cycle

It would be real helpful to have you provide the manufacterer and model number to get more specific with solution.
-Have you changes dishwasher soap powder recently? Buy a box of Electrosol or Cascade and see what happens. The ultracheep versions actually have caused cleaning problems, especilly in water-conserving dishwashers.
-Under the lower rack is the sump area with a filter that can be removed, usaully by removing several screws. Pull that filter, rinse is as best you can. Inspect under where the filter was and remove all debris. Watch out for broken glass that is found in most well used diswashers, it is hard to see and sharp! Reasemble the filter.
-If problems continue and if this diswasher is several years old, plan on getting the wash pump motor replaced (or replace the diswasher with a name brand, Energy Star model.) Good Luck!
Please update me with what you found. OK?

it is probably due to hard water in your area. check out www.dishwasherfilter.com. they have a new product guaranteed to leave your dishes clean as can be. it filters the water going into your dishwasher removing hardness that can leave a residue all over your dishes. you will be happy you bought this product.