Rear brakes not getting brake fluid

1999 CHEVROLET TAHOE

273,000 MILES • 4.7L • V8 • 4WD

JEFF BLANKENSHIP

MEMBER
2 POSTS

Replaced front rotors, brake lines, pads, speed sensors and bed to the usual procedure of any other car. Rear brakes not getting fluid from the rear brake line at the master cylinder. Replaced pump and computer with that from a scrap yard. Same thing exists. No rear brakes. Monroe brakes and mufflers do not know how to fix this

Oct 8, 2017 at 7:41 AM

STEVE W.

✓ASE Certified Mechanic
15,200 POSTS

Did they put a scan tool on it and run the ABS bleeding procedure? When the ABS unit thinks there is a line leak it will clamp the output and only allow fluid to the side it thinks is still okay. I have seen that valve trip while doing a standard bleed procedure.

Mar 16, 2021 at 10:12 AM

JEFF BLANKENSHIP

MEMBER
2 POSTS

I do not think they ever knew the rear wheels were not braking. They did not know why the front brakes were holding partially enough to make them hot. They said they did a temperature read 560 degrees on on rotor, 600 on the other. I doubt they have a scanner. I would buy one and do my own, if I knew how to use it.

Mar 16, 2021 at 10:12 AM

STEVE W.

✓ASE Certified Mechanic
15,200 POSTS

You might try using a pressure bleeder from the caliper end to see if the fluid gets through that way. Or a trip to a better shop to have the brakes checked using the proper tools.

Mar 16, 2021 at 10:12 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.