F.U 4runner Calipers and Toyota.

[Teqeeler]

Why has there not been a fix for this?!?!?!?!?!?!?!

Well like clock work every 2 years my caliper's freeze. This will be my 4th replacement since 2010. Always freezes in the winter which makes it that much more of PITA for me to fix since i have to do it outside.

 

[verman84]

There is a fix ... upgrade to painted 5th gen calipers and rotors. There's a thread in here about it. If you have 17"wheels, upgrade to 5th gen calipers, pads and rotors up front, 5th gen calipersand pads, 4th gen rotors in the rear.

 

[Teqeeler]

I did not know that! Thank you for the info.

I'll look into it.

 

[subspd]

There is a fix ... upgrade to painted 5th gen calipers and rotors. There's a thread in here about it. If you have 17"wheels, upgrade to 5th gen calipers, pads and rotors up front, 5th gen calipersand pads, 4th gen rotors in the rear.

Wish I had known this before I just dropped $1000 on brand new 4th gen calipers, rotors and pads from toyota...

 

[4RunnerFJ]

Wish I had known this before I just dropped $1000 on brand new 4th gen calipers, rotors and pads from toyota...

Was this only for the fronts or all 4?

 

[flighht2k5]

Are you using Toyota calipers or autozone specials? I've never had any issue with my 05. And I live in a snowy climate. Not sure if that makes a difference.

 

[Tooltime19]

What seems to be the issue with the 4th gen calipers? I have 115k on mine and dont seem to have an issue.

 

[subspd]

Was this only for the fronts or all 4?

All 4 with a 30% discount. These are not reman but Toyota new. I got tired of replacing them every year. Even the Toyota parts guy tried to get me to buy the reman and I decided to go all new. Cost is crazy but if the originals lasted for 120k miles then hopefully the new ones will to.

I tried Napa reman and Toyota reman and never got more than 30k miles out of them. After 3 replacements of all 4 calipers I'm tired of it.

So at 200k miles I'm trying the all new solution. Just wish I had known the 5th gen parts would have worked.

 

[dkyleb]

There is a fix ... upgrade to painted 5th gen calipers and rotors. There's a thread in here about it. If you have 17"wheels, upgrade to 5th gen calipers, pads and rotors up front, 5th gen calipersand pads, 4th gen rotors in the rear.

Why "painted"? Did I miss something?

 

[subspd]

What seems to be the issue with the 4th gen calipers? I have 115k on mine and dont seem to have an issue.

I never started having issues till after 120k miles. And most of the life of this truck was southeast with limited salt to none. But the last 3 years and 80k miles have been in Ohio where they salt the roads and that is when my troubles began.

 

[verman84]

For whatever reason people with 3rd and 5th Gen 4 runners don't tend to have the same common issues with frozen/sticky brake calipers which plague us 4th Gen owners. 5th Gen calipers bolt right on to 4th Gen so long as you're running 17" wheels.

Some 4th gens go a while before noticing any issues depending on what the car had been through. I'm willing to bet most owners in the Midwest and anywhere that salts their snowy roads is where the bulk of the issues occur due to the corrosive effect of salt.

I'm actually surprised how many people tolerate or simply don't notice when their vehicles start making a noise, need an alignment or pulsating.

And painted because it will help keep the surface rust off the surface of the caliper. For an extra $10-20 per caliper why not? It beats having orange rusty calipers.

 

[Teqeeler]

So as the title of this thread shows, i was a little pissed and the title name was a little on the childish side.
Well after replacing my driver side caliper, rotor, brake pad, new brake fluid and of course painting the caliper to match the other one in February, it has once again seized just 5 months later.
This is the first time it has happened in the summer and since we received almost no snow this winter, road salt was not a factor.
When my calipers froze on my other 4runner I went with Napa Calipers through the mechanic. Those froze about 2 years later and I have been using Auto zone Reman calipers doing the work myself. I’ve been using them for obvious reason, free lifetime returns.
When I purchased my 06, the previous owners had replaced the calipers with some from O’reilys auto. After owning the 4runner for less then 2 months the calipers froze and since then I have put only 16,000 miles on it in 4 years, I have had my passenger caliper freeze twice and my driver-side four times.

So I will be going with the 5th Gen brake upgrade this time, I surrender.

 

[Teqeeler]

I wonder if this is the cause of my problems?


“The proper lubricant is silicone paste, not grease. Grease is petroleum-based and will eat away at the rubber boots on the slide pins. Once the rubber deteriorates it can cause the pins to bind and not move correctly. In addition to that, when the grease mixes with the silicone that should already be lubricating the slide pin, bad things happen chemically. In addition to all that, grease was never designed for the heat that your brakes produce, so it tends to dry up. After it dries up, the caliper slides don't work and your brakes don't work as well as they could.

In addition to grease, DO NOT USE ANTI-SIEZE to lubricate caliper slide pins. It's probably the worst thing to use on caliper slides, because it dries up and causes the pins to seize. I know that sounds ironic considering the lubricant’s name, but it's true. If you do have anti-seize on your caliper slides or any other lubricant that shouldn't be there, clean the pins, the bores, and the inside of the dust boots thoroughly before using the proper lubricant. Failing to do so can cause issues with the lubricants mixing. Bad things can happen when you mix lubricants, so do your best to avoid it.

I get asked about other lubricants all the time, but I stick by my recommendation of 3M Silicone Paste. You can use other lubricants designed to lubricate caliper slide pins, but I recommend the ones that are silicone-based or synthetic, not the ones that are petroleum based. Here is a link to the silicone paste that I use"