Rear rotor heating up

ingrjc1

New member
Hello,

I have a 2004 4-runner sr5 v6. In June of 2015, I noticed that my driver's side rear wheel was heating up and I could smell the brakes from that wheel only. The caliper was replaced although they really could not find anything wrong with it. About 6 months later, the problem returned on the same wheel. This time they replaced the caliper again at no charge and also turned the rotor and replaced the small brake line feeding the rear driver's side wheel. New pads all the way around too. Problem went away again but has now returned again and 14 months later. This time the shop wants to replace the caliper again with a Toyota part this time.

I worry that something else is causing this, but what could it be? Three bad calipers?

Should I have them replace with a Toyota part or could this be something else?

It does not lock up on the rotor and I don't even notice it until I smell the brake and can feel the heat. The shop said about 80 degrees hotter than the other rear wheel. Brake pads are not worn more on this side either at this time. It is also intermittent. No obvious noise or tugging from the rear. Any help appreciated.

Thanks.
 
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its almost definitely the calipers, they are prone to getting stuck or being lazy on these trucks, especially in the rust prone areas. check out the 5th gen caliper upgrade.

I just hanged a rear caliper for the same exact reason on mine last week. Rockauto. 40 bucks after sending back the core.
 
Get the NASTRA calipers from RockAuto, I got 3 years out of a set of fronts before the driver side front seized up. Passenger side still going strong.
Toyota OEM calipers cost way too much and they also seize after while so not worth it.

It's usually the front calipers that go on our 4th gens, weird that you're having issues with the rear. I'm still on original factory rear calipers at 180K miles now.
 
Thanks for the quick response. What is the part number that you purchased from RockAUTO for yours?

I went with the centric 4th gen caliper for the rear. Not sure of the part number but I think its the only centric one there. I have 5th gen set up in the front.
 
The 4th gen calipers are known to freeze or get lazy. I had a similar problem and replaced all 4 with 5th gen from rock auto.
 

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