I've been thinking about this. When I started this job, I was expecting to borrow a bubble flange tool from AZ but found out that didn't have it. The only place I could get it was Amazon so the brake lines were left open at the proportion valve for a few days. My hypothesis is, in that time...
Originally Posted By: yonyon
A sinking brake pedal is always a leak. It could be an external leak or an internal leak, but it's a leak. Rinse away all dribbled brake fluid with water, dry it all off, then check for external leaks.
The internal leak is interesting... I'm thinking the only...
Don't worry my ego, it's shot. I'm eating humble pie simply by posting that I have no idea why the brakes are doing this. I've gone through the system several times, there's no leak and the level in the master cylinder isn't dropping.
I found this youtube video. It shows exactly what the pedal...
The pedal was firm before. Now you can pump it up and it feels firm but it slowly sinks to the floor. I checked the Taurus forums and it does appear that you need to activate the ABS in service mode. I don't have the code reader that has that functionality.
That's one of the suggestions from above. I tried that as well and got the ABS to engage several times on a gravel road before I started the bleeding process. No change to the pedal.
I tried one more time using a MityVac; no air came out. There are no leaks. I've bled brakes probably a couple dozen times in my life and I've never been unsuccessful until now. The car does have ABS and I think that has to be the culprit. I don't have the diagnostic tool to open the valves in...
I don't believe there are any leaks, the reservoir stays at the same level.
It's 4 wheel disk brakes and not sure if it is ABS. 1997 Taurus sedan, the most common one; 3.0L EFI. It's my father's car, I'll check it tomorrow when I'm back at it. What are the consequences for it having ABS?
The...
I forgot to mention that I replaced the master cylinder too but that didn't change anything. I'm just pumping the brake pedal. Would Mity Vac do a better job?
I'm having problems getting all the air out of the brake system after I replaced the two brake lines from the proportion valve to the rear of the car. It's a 1997 Taurus, nothing special.
I've probably have gone through about a gallon of brake fluid at this point. So far I've tried bleeding the...
This has got to be the '91 Ford that's referenced in the OP's sig. It doesn't have much life left in it anyway. You could spend 1200 bucks and have that POS die in a week. I agree with the OP, why waste money or money when it probably will die any day now and not from this ailment. Just drive it...
A magnet on the filter makes more sense than the drain plug. I highly recommend the Fumoto drain valve. They make a version with a hose barb fitting.
The oldest one that I've got has been in use is about 6 years old with no issues. The first oil change I did on my Civic I replaced the OEM plug...
If you hang out on this board long enough, you'll probably decide (as I did) that the carrying agent (grp 3,4, or 5 oil) isn't nearly as important as the add-pack.