Some times when pressing the brake the pedal gets pushed back out with a vibrating sound which I cannot stop the car until the pressure or whatever is causing the issue resets.

Sounds like ABS is activating. Codes? Wheel speed sensor?

Dark brake fluid should be flushed/changed.

 

Would also be checking the rubber hose and hard lines to the calipers / wheel cylinders (if applicable), if here - since they were in those areas for the alignment. ... Make sure a hose isn't damaged / collapsing, or a hard line isn't dented / pinched.

 

I would strongly suggest you stop driving it before you kill yourself or others. Have it repaired by a brake mechanic. You’ve opened yourself to liability now that you’ve publicly admitted operating it with defective brakes. That’s my 2¢

 

Brake fluid dot3/4 needs to be completely fushed from the system w/ some regularuty! WHY?
*Brake fluid absorb MOISTURE! This lowers the boiling point of the fluid and could cause brake failure.
*Moisture in the Brake system is bad. There are metal components in the ABS. Water and metal don't mix. Early flequipment failure.

At times I have to pull the hand brake to stop. If Im not careful I could hit the car in front of me kinda issue.The fluid is really dark but done see how that could cause this kind of issue. I did suck out some old fluid being careful to stay above drain neck (no air) hoping to trick my mind into thinking it would fix problem.

1) STOP driving the f'n car! It is a f'n danger and you will be at fault for an accident. Your are knowingly being the f'n drunk driver on the road. Just cause an accident killing yourself vs others.

2) Ignorance isn't bliss. Removing the old fluid from the brake reservoir does NOTHING. What about all the old fluid from the reservoir to each wheel caliper/cylinder?

The alignment shop may have done a courtesy check of fluids and other things in hope's of you agreeing to repair/replace.

Years of neglect of brake fluid is likely causing internal issues w/ ABS. What are the codes?

 

1) STOP driving the f'n car! It is a f'n danger and you will be at fault for an accident. Your are knowingly being the f'n drunk driver on the road. Just cause an accident killing yourself vs others.

2) Ignorance isn't bliss. Removing the old fluid from the brake reservoir does NOTHING. What about all the old fluid from the reservoir to each wheel caliper/cylinder?

The alignment shop may have done a courtesy check of fluids and other things in hope's of you agreeing to repair/replace.

Years of neglect of brake fluid is likely causing internal issues w/ ABS. What are the codes?

Right, don't drive the car if it's unsafe.

 

Right, don't drive the car if it's unsafe.

I flush the brake fluid every 2 years, so it never gets too dark. The master cylinder rubber cups could also have deteriorated if you can't build pressure. You can put in a new aftermarket master cylinder from rockauto if that's the case.

 

Thanks for all the amazing information. No codes & abs light has never come on, so I don't have much to go by. From all your comments it could be a few things from a speed sensor, hard lines, hose or a master cylinder. Being I don't have any codes or dash lights, my best option would be taking it to a shop.