Tags

master cylinder

Low Speed ABS Activation?

I know what you are thinking by the thread title... "It's your ABS sensor my guy..." But hear me out. I bought the truck with the ABS light on, then I changed both sensors up front. ABS light went away. Great! Now, on rare occasions... at low speed... the brake pedal, once depressed...
- HGKx
- Thread
- Mar 24, 2024
- abs abs bleed brake booster master cylinder
- Replies: 11
- Forum: Axles + Brakes
Brake help after nbs master cylinder upgrade (1994 chevy fullsize blazer)

1994 Chevy full-size blazer (5.7 tbi OBD1). Recently did the nbs master cylinder upgrade. Grabbed a mc out of 2001 Tahoe with vacuum booster. After installing, bled the brakes and it is terribly squishy, worse than before. Dangerous lack of brake power. Was going to bleed again. But thought I’d...
- 94FSblazer
- Thread
- Jul 14, 2023
- abs brakes master cylinder nbs nbs master cylinder
- Replies: 7
- Forum: Axles + Brakes
D
Dirty Master Cylinder and Fluid

Yesterday I couldn’t get my 1989 Silverado’s master cylinder to bleed. It appears to be original and the brake fluid had probably never been flushed. I have a new MC but didn’t get it installed today. I am including some pictures of the old master cylinder.
- DixieWASP
- Thread
- Apr 21, 2023
- brake fluid master cylinder
- Replies: 8
- Forum: Axles + Brakes
G
Brake upgrade help

Ok guys, I need some help. I read all the info on the forums and went ahead with the NBS master cylinder upgrade. I have a 1988 GMC C1500 5.7, 700r4. I purchased Dorman M630031. I bench bled it and installed. I also installed all new brake lines in the front and rear, also replaced both rear...
- Garyg
- Thread
- Mar 2, 2022
- brakes master cylinder
- Replies: 13
- Forum: Feedback, Help and Suggestions
Touchy Brakes

I've got a 99 Tahoe LT 4wd 4dr with 4 wheel antilock brakes (currently not working). When I press the brake pedal, nothing happens until the very end when the brakes grab violently. At low speeds my passenger rear wheel locks up. I went on Identifix and they say it's either a BPMV (Brake...
- TwistedTahoe
- Thread
- Feb 10, 2022
- abs bpmv brakes master cylinder
- Replies: 8
- Forum: Axles + Brakes
Master cylinder and ABS Delete

1989 Chevy OBS regular cab here and I am PERPLEXED. Here's my situation. I replaced the OEM Master Cylinder (MC) with a Little Shop Manufacturing MC in which the fluid reservoirs are opposite of OEM. i.e. Large is now in the front and the smaller one is now closest to the firewall. I also did an...
- Kimo
- Thread
- Jun 28, 2021
- abs delete little shop manufacturing master cylinder
- Replies: 30
- Forum: Axles + Brakes
R
'91 k2500 NBS master cylinder swap

Question about NBS master cylinder swap: I have a '91 k2500, vacuum boost, disc/drum, 6 lug. Current MC needs replacing. Reading online, I need a master cylinder from an NBS of the same type of truck, correct? So I should get a master cylinder from a 2001 Silverado 2500 and it should bolt right...
- ryanguy426
- Thread
- May 29, 2020
- advice bore confused diameter master cylinder nbs obs
- Replies: 11
- Forum: Axles + Brakes