RTH-Rear Brakes dragging

[southerncruiser62]

I have reviewed a few threads in regards to swapping to Tundra rotors and calipers and one thread regarding, does the 200 series has Load sensing technology for rear brakes?

First questions is whether or not there is anything in the rear that would compensate for the added weight of a boat of additional passengers. This started after pulling my boat with the 200 after the purchase a few weeks ago.

The issue is that the rear brakes reach a relatively high temperature in a few short miles. I have parked it for now. Wesley Chapel Toyota in Florida did a rear brake job on the truck just before the purchase and unless something was done wrong on the dealers behalf (clearly a possibility) then the only possibility is that something may have froze up. This is consistent on both sides not just the left or right so that's why I ask about the Load Sensing and maybe a cable froze in a specific position. Truck is an 2008 with 48K on it.

It almost seems as if the calipers may be freezing up and I intend on taking the calipers and rotors off this afternoon to inspect. Has anyone experienced anything similar? Fluid in master is clear and within range and aside from the caliper/rotor issue I don't have any other current issues.

Any help in advance would be great, thank.

 

[mark71]

Can you jack it up and see if the wheels spin freely?

 

[gaijin]

One obvious check: is the parking brake adjusted properly? Not sticking?

 

[southerncruiser62]

As I mentioned once I leave my office shortly I am headed back home to do the general tests and inspect rear brake assemblies.

I just got off the phone with my local Toyota parts guy and he confirmed these do not have a load sensing proportioning valve.

 

[chilibit]

I would focus on the parking brake adjustment like gaijin suggested. The truck might have seen the beach.

 

[southerncruiser62]

So first steps. Parking brake adjustment was correct I backed off a notch or two to just see how that does. What was more interesting was that I had to practically pry the caliper off the rotor it was so tight. once I got it off and ran the piston in and out to verify it wasn't frozen and it moves freely for the most part. The fact I had to work very hard to get the caliper off concerns me so I think for elimination purposes I will replace both calipers for ease of mind.

 

[kreiten]

So first steps. Parking brake adjustment was correct I backed off a notch or two to just see how that does. What was more interesting was that I had to practically pry the caliper off the rotor it was so tight. once I got it off and ran the piston in and out to verify it wasn't frozen and it moves freely for the most part. The fact I had to work very hard to get the caliper off concerns me so I think for elimination purposes I will replace both calipers for ease of mind.

did the pistons move in and out freely?

 

[southerncruiser62]

It seemed to move just fine. All reassembled and will road test in the AM. Two of the slides were not frozen but took a little effort to get out. There seems to be a shortage of calipers in the US for the 200's so a reman is almost impossible to come by on the east coast and new is big $$$. Either way if road test doesn't show proper function I will just get two OEM calipers Monday and wait for them to arrive.