1998 Ls 400 Brakes

[tawebb]

When changing brake pads, can the calipar pistons be compressed without relieveing hydraulic pressure? I got to that point very easily, but was not sure if I would damage the ABS system by pushing the pistion back without relieveing the pressure.

Is ABS on front and rear wheels?

I could not see brake bleeder valve on the calipar housing. Is there one, or where how do you bleed the brakes?

[99lsguy]

tawebb,

I have a 99 LS400 Service manual so here goes.....

The manual says to remove brake fluid from the master cylinder (use a new, clean syringe type or bulb) so that when you push the pistons back in there is room for the fluid to rise in the master cylinder.

If the pistons are hard to move, then loosen the brake line that connects to the Piston so it can "bleed" as you push the pistons back in. There is no mention of a bleeder valve anywhere.

If you really need it, I suppose I could scan the pages and email them to you so you would have the entire procedure in hard copy.

Don't forget the silicone grease on the anti-squeel shims!

Let men know how it worked, I will need to replace mine in about 5 -10 K miles.

hope this helps,

ls400guy

[VBdenny]

While I can't speak for your year, I folled the instructions I found on alldata.com and did exactly what the LS400guy said. Worked fine. I wasn't sure about that myself because I know with Chevys and Fords you have to relieve the pressure as you compress the piston in the caliper. I guess that isn't a concern with the Lexus. My 90 has a bleeder valve (see gallery picture) but if it doens't just do what was previously posted. Accomplishes the same thing.

Best of luck with it.

[99lsguy]

More info on a LS400 manual:

I called Toyota Publishing Direct 800-622-2033

I believe I called late on a TH or even Friday. The manual ( I got only vol 2- the main stuff, engine,

transmission, cooling, brakes, differential, etc : a lot of info!) arrived on Monday following the weekend. Very fast service! I paid $10 for UPS 2-day shipping (plus the manual was $90) Anyway, I was very impressed with the fast service.

I so plan on getting vol 1 (it has a maintenance chapter, but mainly service specs & diagnostics) but I may get it on CD Rom. You know; $20 versus another $100!

Let me know if you have a good contact for the manual at a good price, otherwise I'll probably get a CD from ebay.

good luck,

ls400guy