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Need help (Fbody Brakes)

Scimmia said:
Once again, this is not the correct sequence for our cars.

Right Rear
Left Front
Left Rear
Right Front
Click to expand...


I've had ASE certified mechanic's tell me to do it the way Farnsworth posted above. Why would you do it any other way or why is this sequence incorrect? You've gotten my curiosity brewing.
 


ASE certified mechanics are only going to give you the old, general way of doing things. Our brake system is split diagonally, so RR and LF are on the same port from the master cylinder. GM specifically says to do it the way I listed, and there are a number of people on CGP who have had problems getting air out of the system until they did it that way.
 
Well i fixed my master cylinder last week, and i just gravity bled and then just started bleeding till the bubbles were out like i have for years and no probs. So if im "PLAYING MECHANIC" for years ive done a good job on my brakes. Thanks guys.
 
rynoman03 said:
I've had ASE certified mechanic's tell me to do it the way Farnsworth posted above. Why would you do it any other way or why is this sequence incorrect? You've gotten my curiosity brewing.
Click to expand...

Did brakes on a Sebring and an Impala for a friend. Bled and bled and bled, using the RR,LR,RF,LF method, and neither one would stop correctly. Argued with the friend that the sequence was wrong. Did it ONCE using the RR,LF,LR,RF method and, imagine that, it stopped like a dream. Read somewhere once, that by doing it the first way can throw the proportioning valve off center or something?? Don't know, but now before I do a brake bleed job, I find out the "correct" sequence.


On a side note, I would like to know if F-Body brakes work on 04+
 
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Scimmia said:
ASE certified mechanics are only going to give you the old, general way of doing things. Our brake system is split diagonally, so RR and LF are on the same port from the master cylinder. GM specifically says to do it the way I listed, and there are a number of people on CGP who have had problems getting air out of the system until they did it that way.
Click to expand...

Gotta side this way on this one. You have to go by circuits through the ABS module to clean the pipes correctly. It's not about longest to shortest with these cars.
 


Well, then I did it wrong years ago. Don't listen to my advice then, scratch that. Did Heathers car the same why when I installed her rebuilt powder coated brakes many moons ago too. Shes fine. Pretty sure Jeremy did it this same way when he did his F-body brakes after his were powder coated and rebuilt. If thats the case, then I'd better go redo everyones brakes.

But Brian...I think YOU can contest that my brakes work pretty good huh?

Remember the Branson Caravan, and my locking them up to keep out of the back end of Shawn's GTP? You behind me...locking them up as well and following me off onto the shoulder in our evasive maneuvering action.:th_winking: LOL



~F~
 
Technically, I didn't lock them up, the tires held and made the ABS growl quite a bit.

Not saying your technique won't work, Jason....but the GMSI does show to bleed the brakes in series because of the setup of the ABS valve. Other cars are different where the fronts are on the same valve circuit and the rears are on the same. The W-Body is different for some reason.
 
98GT3800 said:
So you guys saying even though mine stops very well, it will be better when i do it the other way
Click to expand...

Not necessarily. Bleeding "longest to shortest" makes it much more difficult to get out any air that is trapped in the system, but if there's no air, there's no air, no matter how you got it out.
 


Me to. but didnt they say that the Grand Prix GXP brakes would bolt on to these 97-03 models. If so then i dont see why the Fbodys wouldnt work, if a GXP is the Same as the older GP's and the fbodys the same as the GPs. Therefore would be the same. RIGHT or WRONG
 
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