irouse

Hey Guys I recently just had my Lexus ls400 1992 226,000 miles on it brake calipers and hoses replaced but it STILL sticks in the front only on one side. (right side i believe) Ive had this caliper replaced twice and my pads were chewed down on the right side and the mechanic says it was the right caliper so I had it replaced and I still shake at high speeds (50-75) I was told the master cylinder may need to be replaced but of course I would like to avoid this if possible and save cash. Its a on and off type of thing as well. Sometimes I'm shaking my but off on the freeway because the caliper sticks in the front but other times during the ride on the highway it is smooth as if it was brand new? Again I had all of the calipers and hoses replaced and am really tired of this brake issue. Its the only thing noticeably wrong on my Lexi.

dicer

It could be an ABS problem, need to check for codes. If calipers where replaced maybe the system was not bled properly.

irouse

Thanks my abs and track control is on as well so yea I actually should get those checked but why would it make it stick on one side? And I just got back from my commute from work and the rotor on the left side has that sort of a ring around it so it could it actually be that side?
Thankyou for the response

sha4000

iTrader: (1)

Was the caliper replaced or rebuilt? This should not be a difficult problem for a competent mechanic to figure out.

irouse

They were replaced

sha4000

iTrader: (1)

Are you SURE? I don't see 2 new calipers exhibiting the same symptoms. The matter cylinder would be the next culprit if your sure the lines are good.

dicer

This isn't the best explanation but should give an idea, how it works. The master cylinder doesn't not apply to each wheel independently, but the ABS unit does. If you are having one wheel with a locking problem then the abs is giving it the wrong pressures. ABS is suspect especially when you have changed the calipers.

cobalt91

Did he replace the rotors and pads when the calipers were replaced? Also make sure there is no debris behind the rotors. Check lug nuts. Make sure they're tight.

plexus914

Do not use after market shims for the new brake pads? The holes do not exactly line up with the 2 slide pins.

dicer

So is the problem resolved?