2016 TRD auto 6 will not move in Drive or Reverse

If they would put disc brakes in the rear we wouldn't have this problem.

 

No I have learned on TW that drum brakes are better than rear disc brakes!

 

Impossible.

 

Correction. You learned on TW that disc brakes are not needed in the rear of a Tacoma to make any improved changes in stopping.

I will agree that disc pads don't usually ever suffer from freezing to the rotors like shoes do in drum brakes.

But to be completely clear here, drums have superior holding power over discs in this situation.

 

This may be a stupid question, but is it common for drum brakes to freeze? I've never heard of this before

 

Washed my truck again yesterday. One of the rear drums partially froze. That mud hole I went through a month ago must have been real mucky

 

Yes, but requires water between the shoes and drum. Dry systems would still freeze, but not stick.

It is common enough on many many vehicles, that most folks that travel through wet areas and stay overnight in freezing temps, know not to set their E brakes.

It's fun when one brake doesn't stick and the other side does. When you drive away, you drag that stuck wheel.

 

So you're saying if you have wet rear discs, park and apply the ebrake while wet, and let it sit during a freeze it won't bind?

 

don't use the parking brake if you encounter wet weather or car wash when the tempuratures are below freezing

 

I had a huge wet snow that froze my talon to the ground once. It took almost all the 30psi and 400whp to get her to break loose. It was insane.

Usually a little gas with break her loose but you know that crap Toyota low end tq can't break ice. Lol

 

Jay, that's so 'cold'.

 

Man I would be afraid of breaking an axle, or transmission doing that.

 

I’ve had this happen I few times on my F350 work truck. I sympathize with OP, as even though it’s happened more than once to me, it still takes a while to figure out what the hell is going on, especially first thing in the morning. You put the truck in drive, try to roll forward, and nothing!!!??? Even with the big ford V8, if the drums are frozen solid, the computer management will cut torque to the engine before you break free, and you’re stuck. Only answer in my case was to wait until the heat of the exhaust warmed the drums just enough for them to let go.

This is an issue with drums, but I still believe Toyota chooses to use drums on Tacomas for some reason other than cost savings. Lots of cheap cars, competing in the “cheap as possible car segment” have discs in back, so it can’t just be to save pennies. I don’t see manufacturing drums and all the internal gizmos to make them work as being any simpler than discs and calipers at this point. I tend to agree with the people that state the rear drums are more reliable off-road (when not frozen) as the back wheels and axle see the lions-share of dust, mud, and gravel kicked up by the front wheels when driving off highway.

For work, I have driven in underground mines in the converted Toyota Land Cruisers they use down there. These trucks are (re)built to take more abuse than anyone is putting on their rigs topside. The stock exposed disc brakes are removed from them and replaced with fully enclosed “wet” disc brakes that operate in an oil bath. Sounds counter-intuitive to have your brakes in oil, but that’s what they have. Anyways.......the point being, that they ditch the standard disc brakes as being inadequate for the harsh conditions inside the mines, which would include dust, mud, water, etc. I think the wet brakes dissipate heat better as well, but in the mine I was in there were no long descents.

 

Would be interesting to measure/compare the square inches of frictional surface between the shoes used and pads used on an equivalent weight vehicle with rear discs. I know that my 5 lug shoes have a good bit more surface than my '04 Highlander rear discs.

The purpose of 'big brakes' is heat dissipation. IE longer engagement w/o fade, which is a heat issue.

I'm sure Toyota engineers read the forum regularly, maybe one will jump in with some thoughts on this.

 

Low transmission fluid

 

My 2013 turd rear drums stuck in summertime once


did a car wash
parked it, hit parking brakes
next day, not moving after park brake release

fiddled with park brake engage/disengage a few times...while idling but in R...
then a pop and brakes are fine, truck is fine


so I agree that wet drum brakes pressed up against the drum
can sort of glue themselves there overnight, even on warm days/nights


problem never came back.

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On my 99 4runner the park brake never stuck like that exactly, but the old skool
bell crank arms did rust out and seize once, making one tire drag in dirt, and not
roll in idle and D on pavement....and it ate MPG's for a week until I got under there with a hammer and bashed them loose.

 

just a thought or a flashback. My Brakes did that on the 2017. Make the dealer look at it.

Special feature

 

Generally less of an issue with disc brakes, but mostly just joking about the ridiculous debate about how badly the Tacoma needs to have disc brakes for no real reason.

 

Usually DSMs break themselves running 30psi

-source, former DSM owner back in the day.

 

Yeah that's why I'm swapping in an auto. Lol. 330k miles on stock block.