So, I am a fan of changing out parts before they fail. No fun having a broken truck on the side of the hwy with angry wife.
I changed out the Steering box to a Red Head, expensive, and I am told the new GM boxes are junk unless its the one that came with the truck, and factory power steering pump. Still, I get the hard to steer at a complete stop unless I start rollling the truck forward or back, then its easy or like it should. It did it only turning left before I changed out everything, including all related hoses. When I brake, the ower steering pump started to hum like the pump is running dry only to discovered its complete full. All fluid had been changed out but after 5000 miles, its started to get light brown again. All this done at a reputable shop.
Today, I had my kid help bleed the hydroboost system again to see if it make any difference. Few bubbles came out. Breaks feels so much better and stop so much faster. When he hit the brakes, a bunch of bubbles came out of the power steering pump reservoir. Here's the kicker. The steering is really hard to turn now standing still (turning both sides now, not just left) until I roll slightly then it frees up. Any thoughts? Its an 2006 Duramax crew cab, long bed, 4 wd if that's important.
I read GM knew about the issue. They have a fix with some electronic switch but my year isn't affected.
How does it tie into the brake system?