Any one know where is the power steering from a saturn ion 2004

I think your cat has elec power steering http://www.justanswer.com/saturn/3do6e-2003-saturn-ion-electric-power-steering-sometimes.html

GM Issues Another Electronic Steering Recall GM has recalled 1.5 million cars for a possible defect in the electric motor that provides power assisted steering on the vehicles below. If the motor fails, the vehicle reverts to manual steering and may be difficult to steer. GM says it will replace the electric motor at no cost to the vehicle owner. Chevrolet Malibu (2004-2005 model years, plus certain 2006, 2008 and 2009 cars with the affected part) Chevrolet Malibu Maxx (2004-2005 plus some 2006 model-year cars) Chevrolet HHR (2009-2010 non-turbo only) Chevrolet Cobalt (2010) Saturn Aura (2008-2009) Saturn Ion (2004-2007) Pontiac G6 (2005-2009) If you drive one of these vehicles and have not received a recall notice from GM, contact your local GM dealer to see if your vehicle is covered under the recall and that you are eligible for free repairs.

there was a recall, you may get it done for free if it has not been done before...

It's electric power steering. The electric motor is under the dash connected to the steering shaft.

My steering wheel is hard to turn is electric motor gone out under the dash??

General motors will replace it free of charge. My 2004 Saturn Ion. PS stopped working. I called GM and they told me to call my local dealer to have it replaced. Everyone should have gotten a recall notice by now for the power steering and for the ignition switch replacement.