serious problems with E34 540, please help

[antose9]

Hi guys,
I have some serious problems with my 1993 540/.. anyone with good ideas or some advice is welcome...
First, the car stalls when you stump on a brake pedal at red light. rpm`s drop down to 300 an lower, and it just shuts down. No problems if you brake slowly, "pulsing", but if I come to stop sign, driving at about 40 mph, press the brake pedal, pull the car to complete stop, it idles, and then dies. I would start it again, and it runs like nothing happened. Maybe idle control valve?? please some ideas???
Problem #2
When making right turn, at some point (about 30 mph or faster) steering wheel feels like it`s "frozen". i.e. it`s rock hard, and it`s almoust impossible to turn steering wheel. Funny thing, it never happens when I turn left, only while making right turn.. power steerin pump maybe?? please help me folks, `cause I don`t know what to think about my baby.. Many thanks
Antanas

[sp0rky]

If your car is vacuum boosted, maybe there is a leak in your brake booster somewhere. Could also be ICV, but it's hard to say...

As for the steering issue - I have the same problem. Just developed about a week ago. I was swerving back and forth tightly when I realized I was headed for the curb. Problem was that I couldn't steer away from it. two hands on the wheel with a real firm grip slowly got the wheel back on-center. It was then easy to swerve left, but one more attempt to go right yielded the same results.

I wanted to say more along the lines of balljoints, something caught, etc, but that just doesnt make sense, because low-speed steering is still done with ease.

My guess would either be the steering box itself or the PS pump. I THOUGHT that the PS pump just pressurized the box, so in that case, I don't see why it would "seize up" in only one direction. I'm doing some research and making this car safe to drive again, so I'll let you know when I figure it out. Good luck and be safe - maybe even drive a different car until you have it sorted out.