Question about 1994 Jeep Wrangler

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Brake line hose has hole in it

On the rear axle, ther is a junction that has the 2 rear wheels brake lines, the feeder brake line, and a rubber hose that disapears into the rear chassis. That hose has a hole in it,(possible rodent dammage). Where does that hose go? What is it for? Can I pinch it off temporarily? I have nearly no brake pedal left.


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  • nahart Nov 10, 2008

    Thanks, but for the life of me, I can't understand what that hose is for. It is the fourth line attached to the junction.

  • nahart Nov 10, 2008


    You are right.

  • nahart Nov 10, 2008


    You are right.



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The only real solution to your problem is to replace the damaged line, bleed the brakes, and check for leaks after you are done. The line should go up to the frame, and go into a small metal bracket that is welded to the frame. The hose is usually held in place by a small metal clip, and a steel brake line will thread into the end of the hose assy. where it terminates in the frame mounted brakcet.

Posted on Nov 10, 2008

  • Kenny Blake Nov 10, 2008

    It may be the differential vent tube. Checkthe top of the line, if it has a plastic cap on it, then it is merely a vent tube. Easy and cheap to fix.



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There should be a vent line and they are also on the F150 Series too. On the F150 and probably your F250 series the vent pipe goes through a rear Brake hose as Ford used the vent pipe to mount and secure the rear main Brake hose. The feeder lines go to each rear wheel.

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I need to add 80-90W oil in my rear diff, however, I can't seem to find the plug to pull to add in said oil. can anyone help? What am i missing?

Axle Housing Assembly Removal & Installation To Remove:
Exploded view of the rear axle mounting 88457g85.gif

  1. Raise and support the rear of the vehicle safely using jackstands under the frame. Position a floor jack or a second set of jackstands to support the rear axle housing. If a floor jack is being used, take care when removing the U-bolts to keep the axle from suddenly dislodging.
  2. Remove the rear wheels and drums for clearance and to remove some weight from the axle housing.
  3. If equipped, remove the axle vibration dampener.
  4. Matchmark and remove the rear driveshaft from the pinion flange. Either remove the shaft completely from the vehicle or support it aside from the undercarriage using safety wire, but DO NOT allow the shaft to hang from the slip joint.
  5. Remove the shock absorber-to-axle housing retainers, then swing the shock absorbers away from the axle housing.
  6. Disconnect the brake lines from the axle housing clips and the backing plates (wheel cylinders). NOTE: When disconnecting the brake lines from the wheel cylinders, immediately plug or cap the lines to prevent system contamination or excessive fluid loss.
  7. If applicable, unplug the speed sensor connectors at the junction block.
  8. Disconnect the parking brake cable(s).
  9. Disconnect the axle housing-to-spring U-bolt nuts, washers. U-bolts and the anchor plates.
  10. Remove the vent hose from the top of the axle housing.
  11. Remove the axle with the help of an assistant by moving it to clear the leaf spring, or if desired, the leaf springs can be disconnected from the frame at the rear end to lower the axle down and back, but first refer to the leaf spring procedures for information regarding spring installation and removal.
To Install:
  1. With the help of an assistant, carefully position the rear axle into the vehicle.
  2. Connect the vent hose to the axle housing.
  3. Be sure the housing is properly positioned on the leaf spring, then loosely install the U-bolts, anchor plates, washers and nuts.
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  4. Remove the caps from the brakes lines then connect the lines and secure them to the axle housing.
  5. If removed, connect the parking brake cable(s).
  6. If applicable, attach the speed sensor connectors to the junction block.
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  9. If equipped, install the axle vibration dampener.
  10. Install the brake drums and the tire/wheel assemblies.
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  12. Check the fluid level in the rear axle assembly and add, as necessary. Make sure the vehicle is level when checking and adding fluid.
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