Brake Bleeding Procedure?

J

JERM

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My friend at NAPA found a brake bleeding procedure for the Mark VIII that i have never heard of before. He made a copy of it for me so i want to post it on here to see if anyone has bled the brakes this way or has heard of this. If you have, do you know where to get the adapter it refers to?
Brakes.jpg

Sorry about the picture, i dont have a scanner. I had to take a picture of the photo copy he made, sorry if it is hard to read.
 
If you are asking about the sequence, it is totally correct as this is an ABS car and the system is designed that way. I have bled my systems using both a vacum technique and also with the traditional "friend on the pedal" with the key off and have had total success with both techniques.
 
I was actually talking about the antilock brake adapter, but it is good to know that is the correct sequence. I bled my brakes but they dont feel right so my friend dug up this. We did it RR, LR, RF, LF. Brakes felt nice and hard until we got to the LF then the pedal kind of went soft again. I bet bleeding them in the wrong sequence is what messed it up.
 
If alot of fluid was taken out (reservoir run dry, etc) or let leak out, then the ABS may need bleeding with the adapter. I've heard of guys not needing the adapter even in this case, but it guarantees that all the air is out if run a few times. I've also read of others bleeding them in the regular fashion (RR, LR, RF, LF) and not had any problems either. It is the ideal way to do it though.
I bought a one of those adapters on eBay a while ago for pretty cheap. I bled them like that article said RR, LF, LR, RF (the Ford manual says the same, btw.)
Our cars have a diagonally split system, so if you lose a line in one corner, you will still have braking in the opposite diagonal corners front and rear...
 
JERM said:
I was actually talking about the antilock brake adapter, but it is good to know that is the correct sequence. I bled my brakes but they dont feel right so my friend dug up this. We did it RR, LR, RF, LF. Brakes felt nice and hard until we got to the LF then the pedal kind of went soft again. I bet bleeding them in the wrong sequence is what messed it up.
Click to expand...


I can't speak to the adapter as I have never used it. You shouldn't have to.
You appartently still have an air bubble in your lines, so go back and re-bleed them in the sequence shown in your article. Good time to replace fluid. I used the Super Blue Racing fluid for identification.
 
Roadboss said:
I used the Super Blue Racing fluid for identification.
Click to expand...
Thats a good idea, thanks! I will bleed them again as the article says to, and see if that helps. I still havent tracked down what causes the the car to miss when i pump the brakes at idle. It acts like a vacuum line is cracked or the brake booster is failing. I will keep you guys posted, i might not be able to bleed them for a few days since its raining.
 
JERM said:
Brakes felt nice and hard until we got to the LF
Click to expand...

You simply just ran the system dry.....start over.

I've always used the same sequence as you and have NEVER had a problem. I just make sure the resevoir is full when I go to the fronts. On the other hand.....I never "bleed" the brakes, I ALWAYS flush them. You right there...you might as well push out the old fluid until you see fresh stuff, then just refill the master. :D
 
I am pretty sure we never ran it dry but i could be wrong! We will do it the right way soon. Thanks for the help everyone, i will keep you posted
 
We have done all our cars RR, LR, RF, LF. Never had a problem. Will usually pump a whole bottle through each line untill the fluid is clean. Why does the Ford shop manual CD say to use the traditional sequence and not the ABS sequence?
 
Beerdog- in my 96 manual at 06-06-8 there is a manual procedure and the 1st sentence points out that each system needs to be bled seperately (diagonally).

In the old days they were split front and rear.
 
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