Rear Brakes Not Working

After getting back from a drive on the beach this afternoon I noticed a lot of noise coming from the rear brakes. When I parked in the driveway (kind of a steep hill but not steep enough that I would normally worry about the parking brake) the truck rolled forward onto the park pin even though the parking brake was fully engaged. I put the truck in neutral and it rolled down the hill with only the slightest resistance even though the e brake was pulled all the way up. As far as I can tell there is plenty of resistance on the parking brake handle as well as the brake pedal so the only conclusion I could come up with is sand in the drums but I am not sure whether that would cause a nearly complete loss of brake power.

 

Maybe got some sand in your drum. I would take a look at that first.

 

Check the lines to the rear brakes for any leaks. If possible lift the rear pull the drums off to physically look at the pads . How many miles on the truck ? Maybe the pads are worn down to metal .

 

You need to adjust the rear brakes.
This is more common than you would think.
Toyotas auto adjusters on these truck doesn't do a very good job.
You really do need to adjust them manually from time to time. (about once a year for me)
You'll notice a big difference in brake performance and holding capacity.

 

That coupled with his report of noise and recent beach driving. I bet sand in the drums. Guessing that doesn't help with stopping force

 

Probably not. Either way, the drums need to come off.
Compressed air and a couple cans of brake clean should help.

 

Mehh just blast it all with air and she'll be mint

 

42,000 miles on the truck, never touched the brakes or adjusted them manually.

 

I ran about 5 hours in the sand dunes a few weeks ago and had no issues. Is this a common issue?

 

Driving on a beach? I’d also rinse the heck out of everything underneath it including the brake parts or just wait till the ferric oxide party starts!

 

I believe the car wash that I go through does the undercarriage. But I’ll give it a good look over just to see.

 

I agree with statements above. They’re probably just out of adjustment. Clean and adjust and you’re done. Also, Do you regularly use the emergency brake?

 

I always use the emergency brake. I dont know if its a bad habit or not but i pull it even parking on flat ground.