Gen. 1 Brake Bleed Info.

I'm prepping to install my OME lift with the extended rear brake line. I did "search" for Gen. 1 brake bleed info., but didn't see a specific thread dedicated to this...sooooo

I found this video, and aside from the mess they create by squirting the brake fluid all over their suspension, it seems pretty good:

Low Range 4x4 Gen. 1 Taco Brake Bleed Video

Also...what is the "best" replacement brake fluid when draining and updating the fluid levels? I've seen synthetics, and others that claim to "moisturize" the brakes internals?

Is this true?

Also...DOT 4/DOT 3 for Gen. 1's? Mine is a 2003 DC 4x4 TRD packaged rig.

Thanks in advance!

John/Geosense

 

I contend that their order is wrong. The last wheel bled should be the shortest run. The brake lines go from the master cylinder (driver's side) directly to the abs pump (passenger side). From there one line drops strait down to the front passenger wheel - the shortest run. The other front wheel line has to cross back across the firewall and then down the driver's front wheel - longer run.

However, I must confess that I can't tell if that truck has abs or not.

 

Thanks for the reply.

Pretty sure from my pre-purchase research that the 2003 Tacomas were the first with ABS systems...and that one is an 02'.

Just bought DOT 3 Prestone fluid for my upcoming bleed.

 

Interesting. My son's '98 4Runner has ABS. Maybe it was an option. Maybe there are differences in the models. *shrug*

 

Interesting method, the bleeder screw is designed to accommodate a hose to prevent the mess they made. I prefer to use a clear hose, it makes it easier to see bubbles as they come out and you can see the quality of the fluid being bled out. Also, most people don't realize there is a bleeder screw on the rear brake load sensing proportion valve (specific to 1st gen tacoma). I know there is a specific way to bleed that valve, but I don't know the exact process.

As far as the fluid you should use, any DOT3 will work perfectly fine. No need to get some expensive synthetic, it'll work exactly the same. And I know certain synthetics are not recommended for ABS brake systems.

 

Old thread.
My search brought this thread up, as being the most relevant.

Bleeding brakes (a basic system) is easy.
My 04 has ABS. That's my concern.

Would someone please explain to me how to bleed an ABS system, or point me to the needed info?

More looking into it,

 

Are you replacing ABS components or just doing a basic brake bleed for maintenance purposes?

 

Doing the basic brake bleed.

I disconnected / installed a longer brake line from the rear axle, to the valve on the frame, when installing my OME Lift Kit.

My son and I bled them today.
With the key on, in start position,

Sequence was.....Drivers rear, Pass rear, Load sensor valve on frame above drivers rear, Right front, Left front.
I have excellent brakes now.

The ABS Light is on, on the Cluster.
I disconnected the battery for 10 minutes.
ABS Light is still on.

Pretty sure the light need to be reset with an OBD2 Tool?

Right now, my back is a hurting unit.
With my task complete, I can toast to my endeavor!

 

Nice!
I was going to say, if you're just doing a basic bleed for maintenance purposes, you shouldn't need to worry about the ABS module.
Was your ABS light on before you did the bleed? Or it came on during?
I could be wrong but I don't think 1st gen ABS modules communicate via OBD2.

 

I did a break bleed on my 1 Gen Tacoma... now my breaks are engaged permanently. Any idea how to fix this issue?

 

More details?
Does your truck have ABS? Is just one wheel stuck with brakes on? All 4 wheels? What method did you use to bleed your brakes?

 

I used one man method. It seems like both rear wheels are engaged. It has ABS.

 

Rear wheel must be on ground with weight on both. BPV can cause lock up. Or the parking brake is on.

 

I wish my parking brake would lock up the rear wheels, at best my e-brake still lets the truck roll on a slight hill lol.


I've maxed out the adjustment arm for it on the frame rail, probably been stretched from driving off with it still engaged one too many times.

 

My brakes worked GREAT today. The ABS light was on the whole time. I'm guessing that an OBD2 reset, will make that go away.
I wonder, can an OBD2 tool, make DENTS go away too?
I initiated my truck. I raked a stump, and got a few owies today.
Sad times. But she got put to the test, and passed with flying colors!!!

 

My 2001 prerunner 2wd came from factory with ABS

 

Check out third post in this thread for the video. Explains how to reset the ABS light
https://www.tacomaworld.com/threads/abs-malfunction.736244/

 

I'm not finding where I read this but I thought there is a valve over the rear diff that needs to get bled first. I have an 01 with no ABS so that is not a concern, but I think there was a thread (maybe in regards to the Tundra caliper swap as that would introduce tons more air into the system) where they found the way to get a legit good bleed is this valve above the rear diff first, then your typical furthest to closest bleed.

This isn't THE tread but I think turbodb hits on it in post #3

https://www.tacomaworld.com/threads/tundra-brake-upgrade-problems.775239/

 

01's FTW, with Minus ABS & ETCS-i whoop whoop