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Brake Bleeding Question


Ross

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I just installed my Earls lines on my 03 AWD ss.

 

I bled the brakes with a pneumatic bleeder but I'm having a ton of air in the rear lines.

 

Question is - for those who did their own installs - how much air was in your rear lines or how long did it take you to bleed them?

 

The fronts have zero air and pulls straight fluid but I seem to not be getting anywhere with the rears.

 

Any ideas?

 

Thanks

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It might take you a while to bleed your rear brakes pneumatically, our trucks are "required" to bleed the brakes with a scan tool to circulate the fluid by turning the valves in the ABS module on and off.

 

I have done it without, and you may very well damage your ABS module, I luckily didn't but it did take me about 30 minutes just to bleed the front and rear.

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So I'm taking it that Punisher is the only one that did their own brake line install?? I find that hard to believe.

 

I've bled tons of brakes in my past and something just doesnt seem right with this thing. I did them in the correct series but thought I was just pulling air from the screw or something but as I got to the front they both pulled fluid straight through and in about 30 seconds with the pneumatic bleeder had zero air in the lines.

 

I also have a mityvac hand pump - should I try that one too?

 

Thanks everyone....I just don't want to take it to the dealer unless I have to.

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I'm on my second one now and its almost done - the fluid that is coming out of the rear seems to be clean fluid...

 

Again - maybe this is all im going to get but I just spent another 20 min on the pass rear with the mityvac and im still getting tons of air...

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Yeah - I gave up and the fluid I was pulling looked brand new so I guess I pretty much flushed all of the old fluid out.

 

I drove it down the street and I have plenty of brakes but wayyyy too much pedal movement.

 

 

This is really pissing me off

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I double checked everything.

 

Only thing I can think of is I'm pulling air from around the rear bleed screws - they are slightly different from the front so that could be the issue.

 

Going to have the wife help me and manually bleed the rear tomorrow - hopefully that will do the trick

 

I got to thinking about it too and ABS shouldn't be an issue since I should only be pulling air from the new lines and not all the way through the system

Edited by Ross (see edit history)
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if you are going to put your brake lines on i suggest that you use a pedal depressor to push the brake pedal down about one inch. this will help the loss of brake fluid. it's just like if you took a straw and put it in a glass of fluid and put a finger on top of the straw.

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I just ordered some speed bleeders so I'll see what happens with those.

 

I replaced the bleeder screws with new ones for now and used the cheap one person bottle from autozone that inserts into the bleeder screw hole.

 

I pumped the pedal a few times and there was air - few more times and it was all fluid and filled up the bottle - both sides same result.

 

I thought that was it for sure...

 

Pedal still has wayyyy too much travel - stops great once I get past that point but something is still not right.

 

Hopefully these new speedbleeders will do the trick.

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