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Have experienced an interesting problem. The question is, how do I address the root cause?
91' XJ is lifted about 4".
I kept losing my brake pedal, flat to the floor. I thought it was random. But then after a bit of time (sometime it takes me a while) I figured out that if I take a hard left, brake pedal goes to the floor. I can consistently recreate that 100%.
The problem is that a "hydraulic machine" is literally trying to tear the extended stainless steel flex line off of the end of the OEM hard line where the two join in the wheel well. The "hydraulic machine" is my power steering.
Before I figured this out, in addition to the brake line going flat, I noticed that the outer casing on the top of the stainless steel brake line was cracked. Cracked because of the stress on the top of the line/flex line/hard line joint.
When I turn hard left, the line is pulled over the corner. The question is, to address the root cause, is there any kind of block, or extended connection that I can put in place to drop the top of the stainless steel brake line down so that the turn doesn't stress the line over the corner of the inner wheel well?
On budget friendly lifts people will lower the factory mount point on the hard line a couple inches by straightening the hard line some. The best way is longer flex lines. Not sure what else you might be experiencing. Maybe attach a pic?
If the pedal goes to the floor you either have a leak somewhere or the master cylinder is blown out. You'd have a puddle in the driveway if it was a visible line, so pull the rear drums and check the rear wheel cylinders. If they're good and/or you're not losing fluid troubleshoot the master cylinder.
Hard Left = Brake Pedal Goes Flat
