What's up guys? I noticed a weird steering wheel chatter last night and I want to knw if all Gto's do this because of hydro boost. The chatter only happens when I'm parked. If I put my foot on the brake and turn the wheel left to right all the way the front wheels chatter sometimes. If I dnt have my foot on the brake and do the same thing no chatter. Is this normal??
The chatter happens in-between turning the wheel all the way. I dnt hold it I just turn all the way left to right or vise versa. @ konnie - by @ lock do u mean when the wheel is turned all the way to one side or when you have the wheels lock with the brake?
Last edited by couperider1; 01-30-2011 at 02:19 PM.
Hydroboost is only used on diesels and Astro/Safari, and is power brake assist.
Some noise/judder at lock is normal. Its the pressure relief valve in the pump blowing off. Dont hold it there for longer than a few seconds or you can blow out the rack seals or the pump. Or both.
Correction many year Cadillacs, Mustangs, some chryslers, aLot of pick up trucks depending on the brake package and various others it's actually pretty popular. Our GTO's however don't although I have considered a adding it as I do like the Tech.
Please use condoms and help decrease the mini van population.
@konnie does having your foot on the brake make the rack work harder? I had someone press the brake and turn it back an fourth and it takes a few rotations and the front wheels will shake. It does not do it all the time. And if his foots not on the brake it never does it. No leaks not low on fluid. I did have news wheels put on Fri but they are 18s 235 40 in the front. Never noticed it with my stock 17s.
Obviously, if the tire cant rotate in a turn (and they normally do, its why alignment racks have turn tables for the caster sweep) it will take more effort to turn, and put a higher load on the pump.
It still shouldnt act up in a noticeable manner in the middle of travel as you describe.
At this point, Id suggest evaluating the fluid. Its not hard to fluch the system your self. You just need a way to suck the old fluid out, and add more. It'll take 2-3Q. Do it with the engine running, and cycle the wheel full travel while doing it. Suck the reservoir dry, refill, cycle the wheel, repeat. Till the fluid is all nice and new.
If the fluid is really dark, or wont come clean, the seals in the rack are shot and its leaking internally.
The new tires shouldnt affect it. Maybe, if they were super sticky, but i still dont see it.
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