loccsta187

hi there, i have an 06 gs430 and i was changing my REAR pads
the did the passenger side, the caliper went back on perfectly fine (no love taps required)

however on the rear driver side, it just wouldn't go on, the piston was pushed all the way in
after finally getting the caliper onto the rotor, bolted in, i lowered the car n started it up

i put the car in drive and the car barely moved in my driveway, feels as if the brake is on

i believe my rear caliper is seized, is there a way I can remove the slider pin and try to loosen it up? or am i better off buying a new caliper... the PISTON is fine, it seems to be the slider pin and the assembly that connects to it

Nova

iTrader: (21)

so if i read you correctly you were doing a routine brake job on the rear of your car, compressed the pistons, put the new pads on and reinstalled everything with no issue but now your having an issue that the car wont move?

did u lube the slide pins before installing?

Drzava

Can't help with fixing it, but seized rear calipers is a known issue with the 3GS so should be some info around.

loccsta187

I lubed the slide pin on the passenger side, the drivers side wouldnt move, so i figured I would at least try to get the caliper on the car so I can move it around in my driveway while Im trying to figure out what to do with it

Nova

iTrader: (21)

well when u get the chance take the driver side back off and try to use penetrating oil to break the slide pin free. let it sit and try to twist it out. you can also try using heat to break it free but that can get a little dangerous and should be a last resort only.

passnu2

iTrader: (33)

There is a TSB for this issue. I had it happen on my GS and they just lubed the pins and it was fine.

benbuilt4u

iTrader: (5)

yeah very easy fixed just free up the seized pin. then clean pin and hole in caliper then lube well and re install.

loccsta187

i only see one slider pin on my caliper, what about the side with no slider pin, is there a way of "freeing" that up?

thanks for your help guys!

tunedis95

I had this same problem...i ended up using vise grips, hammers and such to get the pin free....i spent quiet a bit of time getting it out. Only had this issue on one side. I ended up freeing it ordered new boots and new slider pins from Sewell Lexus, greased and installed them. But this pin is on both sides...the lower part of the caliper...the top is a bolt i believe unless i have it backwards...

this was the worst experience...didnt plan on having an issue on a simple job

BlakGSKing

doing a brake job now on my 3GS, and had the exact same problem

I took off my calipers with plans to paint them, and I found my rear driver's side caliper was seized

spent the last week soaking it in lubricant, and the rust finally broke this morning

I cleaned everything up, but I need to know what type of grease is used to lube everything back up

what is everybody else using???

loccsta187

i took my rear calipers off and a local brake shop charged me 20 bucks to un-seize and lube everything up

vladbph

same here...both rear calipers seized. Had to replace both... Love with lube didn't help.... I was told that the problem is keeping the car in the ...garage, moister doesn't dry out.

sq25394

get to the dealer and talk to them and explain you know there's a TSB for it and see what happens. Worth a go.

I had the same problem on my 06 GS with 42k and they did the replacement under a TSB, what was important that the car had a full Lexus service history.

If that fails then take it off and try a local garage, I think a new rear is $400+.

pwrusr

iTrader: (10)

figured it out. both rear caliper bottom pin were seized so that it doesn't push the pad forward from the rear; therefore causing uneven wear and not being able to install rotors correctly. DAMNIT!!!