Problems with 2003 Chevrolet Silverado 2500 STEERING

I bought a 2003 chevy silverado 2500hd 15 years ago and gave it to my 16 year old son. recently we noticed that the brakes and steering was acting funny and making a noise, so we replaced the power steering pump and hoses. the problem only started getting worse. i did some research and found an old recall or notice related to the hydro-boost relief valve that was defected because of o-ring failure. just searching the vehicle will show several sites revealing the problem. the nada site goes into more detail on the problem. we have parked the truck until a decision is made. i contacted the manufacture and they stated that there was no problem, the vehicle has trouble when steering and looses braking.

Tl* the contact owned a 2003 chevrolet silverado 2500. while driving 25 mph, the contact made a left turn and the reduced engine power light illuminated. the steering failed and the vehicle crashed into a tree. the air bags did not deploy. the vehicle was destroyed. the contact suffered nerve pain in the back and legs from the impact of the crash. medical attention was not received. a police report was filed and the vehicle was towed. the manufacturer was not made aware of the failure. the failure mileage was 196,000.

Started the truck and put into reverse. there was no brake and no steering control. i had to use the emergency brake to stop the vehicle. all fluids were topped off as normal and i regularly maintain this vehicle. after reviewing this issue in the diesel forum numerous duramax owners have endured the same problem with some ending in crashes. this is a major safety issue!!!!!!!!!!!! simultaneous brake and steering failure. are you kidding me? wow! i tried chatting with gm and was dumped during the chat. no help there! i'll try again! *tr

The steering column rattles to the point you think it is coming undone, turning, driving straight, it doesn't matter. very unsafe in our opinion in our company truck. *tr

I have a 2003 chev. 2500 4x4 est. cab long box. it has 18000 miles on it. i had to replace the rear brakes and rotors at 18000 miles. this is unacceptable for a truck of this type. (heavy duty). i also had a dim brake light on the dash, which i had checked out at the dealer. they said it was in the dash board and would cost 400.00+ to fix. the dealer also said the steering was loose and this was caused by the factory when installed, 250.00+ to fix. what kind of product are they making? *nm

Dt*: the contact stated while traveling 50 mph, power steering was lost and braking became harder. the vehicle was pulled over and power steering fluid was replaced, but that did not correct the problem. the vehicle was driven to the residence and the power steering pump was replaced, this did not repair the problem. the dealership determined there was a collapsed hose. the hose was replaced, but the problem persisted. there was a nhtsa recall, # 04v045000, regarding the brakes. the vehicle was not included in the recall due to the vin.