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Soft brake problems


 
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Husker ZJ
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Joined: 03 Aug 2008

PostPosted: Sun Aug 03, 2008 5:30 am    Post subject: Soft brake problems Reply with quote

My ZJ's brakes seem a bit soft after installing the new lift components that included new extended braided brake lines. I just had new brake fluid flushed and filled today so I know there's no air in the system. It is slightly better, but still soft. I can stop without a problem but when mashing the pedal it doesn't stop immediately which is a bit unnerving.

I don't have any leaks in the braking system at all and the brake componets are in good condition. I realize that there is a lot more mass that I'm tryiing to stop now but I'd like to get it to stop on a dime again.

Is a complete overhaul of the system needed, proportioning valve, master cylinder? (hope not)

Any thoughts?
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Sun Aug 03, 2008 7:29 pm    Post subject: Reply with quote

If you disconnect the ABS your brakes will be firmer.

I would suggest bleading the brakes again.. start with the farthest brake and work your way to the closest..
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Husker ZJ
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Joined: 03 Aug 2008

PostPosted: Mon Aug 04, 2008 5:20 am    Post subject: Reply with quote

Thanks S.B.

The shop assured me that there is no air in the lines with this procedure.
Could they be wrong?

Also, what's the procedure for disconnecting the ABS and why would that result in firmer brakes?

Sorry for all the qustions, I trust you, but just want to know in my own mind why this makes sense.

-Thanks
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ehirner
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Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Mon Aug 04, 2008 6:25 am    Post subject: Reply with quote

I'm guessing you put on larger tires as well but you didn't state that??? If you did, then what you're experiencing is normal given the larger diameter of the bigger tires. They will take more distance and effort to stop. An overhaul of your existing parts will provide little to no additional benefit. However, there is an upgrade out there to provide you with larger pads, double piston calipers, and possibly larger rotors if you run wheels that are 16" or greater. Check out Vanco Power Brake Supply at www.vancopbs.com.

Also, check and make sure the shop put the calipers on the correct side. If the bleeder fitting is below where the hose enters the caliper, the calipers are on the wrong side. The bleeder needs to be above the hose for it to bleed the air out correctly.
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Orangeamc13
Got Rev Limiter?
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Joined: 20 Feb 2006
Location: East Springfield, Massachusetts - U.S.A.

PostPosted: Mon Aug 04, 2008 7:12 am    Post subject: Reply with quote

I would rebleed them!
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