Brake issue

So my battery died the other night and I replaced it the following morning. As I was leaving for work my brakes were super sensitive. I barley pressed the brake pedal and it broke my neck. I drove for a few days like this just adapting to the new touchy feel. The brake fluid is at the full line and there are no visible leaks from the hoses or ABS module. Tonight on my way home from work I made a stop at a drive through and my brakes completely locked up. I pulled into a parking spot and while the truck was running unplugged the vacuum line at the booster and plugged it back and it seemed to fix it. They unlocked and the pedal felt like it usually felt. 2007 v6 2wd

$151 4door QAA is Compatible with 2016-2020 Toyota Tacoma 6 Piece Stainless Body Molding Insert Trim Kit, 1.5" Width MI16172

4door long bed. I never tow it's just a get me to work and home truck. Any ideas?

 

My YouTube university degree makes me lean towards a faulty brake assist. Hopefully someone qualified will chime in.

This may help.

https://www.tacomaworld.com/threads/brake-booster-issues-other-then-air-leaks.453436/

Also this, post #8

https://www.tacomaworld.com/threads/brakes-locked-up-again.444350/

SMH, that’s your thread too. Sorry I’m not very helpful.

 

I bout the truck used in 2016 and it did this shortly after. I replaced the brake booster with a rebuilt Ebay unit and now it's doing doing almost the same thing except this time it will pass the basic booster tests like firm up after a few pedal pumps and also go down a little after start up. But the fact that the brakes apply on the highway and only unplugging the vacuum instantly un locks them narrows it down to def a faulty booster no?

 

Suspect for sure.

eBay would not be my go to for significant safety parts.

 

So this rebuilt unit lasted five years without any issue. The check valve is good, there are now vacuum leak sounds, the truck idles and drives fun until I unplug the vacuum of course to unlock the brakes. I never had this many issues with a booster before it's insane and I can't even think of the odds or percentages. I think I want to just pay the price and get a OEM replacement from Toyota any thoughts?

 

and on a side note I do not have any brake or ABS lights on my dash

 

$212 for a remaned one at rock auto...

 

Thank you. Have you ever ordered anything from them?

 

yep, pretty reputable. Good parts usually

 

Awesome thank you. I was just conerned cause I trued order through my local parts store which say they can get it then after waiting a week I find out they can't and it was an error in there system. Just nervous I'll order one from RockAuto and have it not be correct.

 

you have to look to see if you have stability control, theres only a few variances and the price adjusts accordingly

 

$339 if you have stability control

 

I don't think I do I don't have the switch in my dash for it. I have a basic 2007 TRD Sport 2wd Auto v6 crew cab long bed

 

From autozones website.

Duralast Remanufactured Brake Power Booster 53-4925

• Part #53-4925
• SKU #198153
• 0.0
  (0)
  0.0 out of 5 stars.

• 
  
  Application: Without stability control
  
  Notes: W/o master cylinder, ***Please call MPA 800-228-9672 with your VIN number to verify the correct Brake Booster that fits your vehicle***. With vacuum booster
  

 

its not a "switch" its an ECM function for your truck. Call that number and input your VIN and it will tell you

 

Thank you!

 

anytime! Good luck! Also, non stability control is $209 at autozone

 

Yea I went to O-Rileys last time and prepaid, waited a week, took off work planning to install and after a week without any word I call them up and they tell me oh sorry we cannot get that part and it was an error in our system that lead our cashier to believe they could order it. Left me kinda salty with them.

 

those damn Irish...(my last name is O'Reilly)

 

Just got off the phone and gave my VIN and the operator basically said it looks like a traditional booster that's what it is and if I had any other options it would look non standard and have modules attached lol The picture of the part you sent from Auto Zone and the Rock Auto look like the two boosters I had installed.