I recently did my rear brakes (pads and rotors) myself. Everything went well and I triple checked the caliper was rotated to the proper X pattern. Cleaned hardware and cleaned and re grease slide pins. Today I wanted to double check that my brakes were done properly so I felt the rotors and one was definitely warmer than the other. I jacked up the rear and both sides spun freely but one side was only able to do 1 full rotation while the other side did 2. After my commute home I grabbed my temperature gauge and one side was 90F and the other was 82F. Are these temps normal? I have no noticeable change and the car seems to drive good with no dragging noise and I can coast in neutral on flat ground for a good distance. Didn’t know if I’m just being way too cautious and over looking into things or if I should pop the calipers back off to double check everything is seated in properly.
Are you sure you rotated the puck all the way back in? Check the parking brake also. Those temp are still pretty low..... But you could double check the one side, just to be safe.
Good point, that’s the only thing I’m not sure if I did. I did rotate multiple times and when it looked flush and the X was correct, I stopped. Are you supposed to wind it until you can’t anymore? Just curious how that would affect the placement of the caliper.
You likely must go all the way to put in the new Toyota pads. If you used aftermarket, I wouldn't know. When I did mine, after going all the way in, I had to rotate them out a little to get the pins to line up, but it was only 1/4 of a turn or so.
I used ADVICS pads and rotors which are OEM for Toyota. Based on your idea I think I will pull off the caliper, retract fully and then pump the brakes to re seat again.
The parking brake might be sticking slightly on that side. Doesn't hurt to double check. Maybe waiting a week or so, keeping an eye on the pad wear for both sides. And see if they equal out in temps.
I followed your instructions, even had your list while I did my install! Not sure where I went wrong, will have to go back over everything this weekend.
Took everything apart and it’s really hard to tell if the first time was done correctly, but I think I lined it up better the second time. 1st attempt 2nd attempt
It’s lining it up, and keeping it lined up. You want to assemble everything, don’t apply parking brake, push brake pedal multiple times to seat the pads, reconnect 12 volt neg cable, test drive, then apply/release parking brake a few times, raise rear, and test-spin the wheels. They should go 2~3 revs.
Yeah that’s the frustrating part of the rear brakes. The first time I disconnected the battery, then after reassembly I pumped the brakes till firm, then bed in the brakes. This time, I did what you suggested and used the parking brake multiple times after pumping the brakes and turning the car back on. Took for a test drive and spun the wheel, it’s not a full 2 rotations, but better than what it was before.
It's been a while since I did mine, but are 2 of the spaces deeper than the others? Did you look at the pads and see if the wear, what little there was, was even?
From what I could tell, all the spaces are equally sized. Also the brake pads looked good and even thankfully. I guess the other possibility is a wheel bearing, but there was no play. I’m not sure how long wheel bearings usually last. 215k miles.
This order is safer: assemble brakes Pump brake pedal Reconnect battery Test drive Apply/release parking brake Test spin
If you spin it, you'll hear it and feel it, the grease wears out eventually. 215,000 miles is a long time....
I question that. My Prius's rear wheels have never spun nearly that freely, even though the pads have worn remarkably little in >120k miles, and even though disks feel cool after gentle stops. Wheels of my previous cars with drum brakes turned more freely. Note that Noahdoge also reports "not a full 2 rotations."
I think what I have figured out is does the wheel have significant resistance or not. This actually took me 3 attempts on the passenger side caliper. My 1st attempt the wheel spun about 1 full rotation. The 2nd attempt was even worse as it took some serious effort just to get it to spin 3/4 of a turn. Took it back apart, wound down the caliper all the way, make the X perfect, pumped brakes, 12v connected, backed out of my garage, applied parking brake 4 times, test drove and placed in neutral to make sure the brakes were actually being used. FINALLY, @Mendel Leisk method worked as spinning the tire I got closer to 2 full rotations (even though I applied the parking brake before not after test drive). I do a lot of research before doing any car repair and these brakes for the most part are just about as easy as any other brake job but it’s the re seating of the caliper so difficult. I only found a few YouTubers even mention the X pattern let alone all these extra steps of disconnecting 12v, parking brake, test drive and spin test.
Sounds like you got it, but seriously, if there's ANY play in the brakes, and you apply the parking brake prior to the test drive, it's likely to rotate the piston. Leave parking brake application to after the test drive.