Brake bleeding woas..

Jims5543 · 03-28-2006, 06:29 PM

I helped my bro in law drop in a new brake booster and master cylinder.

I bench bled the cylinder and then bled it again while attaching the lines.

I went to the right rear and began to use my suction pump to bleed out the remaining air.

I could not draw anything from the line. I made sure the valve was open and even had him pump the pedal while I bled it 2 man style. Fluid would not run.

I moved around the car getting very little with either method.

I went to the front right and tried it. WE could barely get anything out either with the pump and hold 2 man style or with my suction pump.

What am I missing??? I have never had this happen before and have swapped more MC than I can count.

dhoward · dhoward's Garage

Anti-locks?
You may have to have the pump on.
That's the only thing I can think of....

trekkor · 03-28-2006, 09:35 PM

I like "Speed Bleeders"

KT

djmcmath · 03-29-2006, 02:20 AM

Would this be better served in the tech forum? You're more likely to get "Bush hates anti-lock brakes" here in OT.

Jims5543 · 03-29-2006, 03:50 AM

Quote:

Originally posted by dhoward
Anti-locks?
You may have to have the pump on.
That's the only thing I can think of....

It does have rear anti lock. I thought of that too. I tried this with the engine running too. Nothing different.

We ran down to the Auto parts store to pick up some speed bleeders and they didn't have any left.

Eric 951 · 03-29-2006, 03:58 AM

type of vehicle?

Could be proportioning valve. Or a kinked/crushed hard line.

slakjaw · 03-29-2006, 04:02 AM

you have cloged up bleeders.

Try takeing the bleeder all the way out and see wat hapens.

dhoward · dhoward's Garage

What he said.

Jims5543 · 04-01-2006, 08:40 AM

I pulled the bleeders and tried bleeding with only my finger over the hole and a rag to catch the fluid.

It ended up being the rebuilt MC was bad. We put the old one in which was fine and everything worked great. Bled it in minutes. Speed bleeders rock.

We replaced the MC because we figured it would be preventative maint. We were really replacing the Brake Booster. So get this, it is bad too.

Both parts we bought from NAPA were bad out of the box.

Before I pull it apart again I am having my mechanic look at it.

We found a bad vacume leak on the engine that was probably contributing to the brake booster problem. I am going to heve him hook a vacume guage up to it and then look over our work.

I have never had a car stump me like this, its really pissing me off.