Pontiac Repair Questions? Ask a Mechanic for Answers ASAP
If you open up the bleeder in that side that you replaced the line and take off the cap off of the master cylinder reservoir and fill the brake fluid up, eventually brake fluid should start to drip out of that caliper or wheel cylinder. This may take about 20 minutes or so, but you will just have to be patient. If brake fluid is still not coming out, then you can try bleeding it. But this may take some time as well.
Ok... leave the cap off.
If you bleed them with somebody pushing on the brake pedal do we still get air out of the rears?
Ok... just keep bleeding....
There is alot of air that needs to get bled out. Be sure the master cylinder does not go dry while bleeding.
If you keep getting air out of the right rear, then that means the line from the master cylinder to the right rear has a leak in it somewhere.
It is not air tight and keeps sucking air in. THats why you have a soft or spongy brake pedal.
two separate lines coming from master cylinder
WHen the master cylinder was replaced, did the reservoir get replaced also? Did the master cylinder come with a reservoir or was the old one used?
You might have a bad seal between the master cylinder and the reservoir. It sounds like the master cylinder is sucking air from somewhere.
Well, air is getting sucked in from somewhere.
WHat I would do, is bleed it at the ABS motor (the two rear lines) and see if you are still getting air in the system. If not, then you are picking up air after the ABS system and you know that the master cylinder and everything before the ABS motor is sealed air tight.
NO... do not do anything to the ABS motor. You are making it way more complicated than it needs to be. There is no reason that the ABS motor should have been bled to begin with. Maybe now this is your problem. Maybe you have air trapped in the ABS motor.
We are going to do this one step at a time.
Bleed the two brake lines going into the ABS motor for the rear brakes. Be sure the master cylinder reservoir is filled up and bleed the two lines until there is no more air coming out. Stop at that point and let me know!
hold on I'll go get hubby
He said in the pontiac shop manual it says to apply & release the abs motors 2-3 times & the solenoids 5-10 times & then bleed
Just for a simple brake line repair? Throw that thing away!
I do brake lines at the shop all day long! I cannot remember the last time I needed to bleed an ABS motor!
yes there is
Glad to hear it all fixed!