2000 S70 glt, when I turn the wheel all the way(like when you turn into a tight parking place) it starts a rumbling grinding sound, any ideas?

 

I believe I had the same problem on my 1998 S70 T5. It was a characteristic groaning noise when making a hard left or right. The first thing I would suggest from experience is to check your power steering fluid level. I found a small leak in my power steering rack which progressively became larger and larger. My power steering finally went out the window one day and I could hardly steer at all. I paid $1600 for a new rack, rather costly it was.

 

fluid is normal

 

All you need to do is grease the "stop locks". If you look close to the bottom of the front wheels on the underside you will see a flat spot about 2.5 inches long and about 3/4 inch wide. just coat this area with grease and if you look up just a bit you will see the stop that rubs against it. Every oil change just reapply a coating of grease and your noise will stay gone. One of the cheapest fixes on any Volvo.

 

I think u should check the underneath of the wheel as it is rubbing something or not, apply some coating to it to prevent rubbing and u can prevent the noise....

 

yep, found it and greased it, so far so good, thanks I did not know they were even there, the stop lock are a plastic type of material riveted on to the spindle.

 

Yes, it's call phanolic. A very hard plastic material.

Sometimes people hear a old wooden ship creaking noise that is actually the strut seats. You can check the 850 section to find answers to a lot of the S70 problems.

 

Glad I could help....not all problems with Volvo's are expensive......enjoy.

 

I've been having the same issue when turning all the way to the right. Greasing the stop locks definitely helps eliminate the noise since it lubricates the sliding surface.
However, I believe the root cause of this issue is the stop locks on the aftermarket contorl arms. I have two control arms that I've installed not too long ago (right side OEM, left side aftermarket). There are no issue when making a hard left turn, hitting the right side control arm stop lock. The noise only happens when you make a hard right turn and hit the left side control arm stop lock.

The stop locks even look different. OEM one is blue and appears to be smaller. After market is yellow and looks a lot beefier.

 

If you're hearing squeaking while turning the wheel, be sure to also check the condition of the steering column bushing located at the lower base of the steering control assembly inside the vehicle. Slide the rubber bellows down and you will see the bushing. Remove, clean, lube and re-install.

 

My 1998 S70 is doing the same thing. How do I grease the stop locks?
Not sure where they are located.

 

I know this is a long shot, but did you ever find a how to?

 

The language above is pretty awful for clarity. There is a sort of anvil on the lower control arm. It's not unusual for this to be covered by a low-friction surface like a plastic block. Maybe it's teflon, I don't know. The teflon block might have fallen off, but look to see where it was. Some manufacturers don't cover that with anything. There is a very obvious part of the steering knuckle which is designed to hit this block like a hammer when you steer as sharp as you can. You can't miss it.

Pictures of the control arm would be readily available at a parts retailer. They don't all have this white spot, but that's the spot.