Instructions
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1. Make sure you have everything you need before getting started, park your Jeep JK Wrangler on a level surface, apply your emergency brake and put your transmission in park or in gear if you have a 6-speed. |
| 2. If you worked on your Jeep JK Wrangler’s master cylinder or disconnected multiple brake lines for whatever reason, you will need to start this job from the passenger side rear brake. If you just worked on your front brake lines, then you need to start at your passenger side front brake. The idea is that you just need to start from the brake that is farthest from the master cylinder. |
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3. Assemble your brake bleeder kit, open your hood, climb under your Jeep and remove the rubber cap attached to your Jeep JK Wrangler’s brake caliper bleeder valve as shown in this pic. |
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4. Place your 11mm wrench on the brake caliper bleeder valve/nipple and then insert the tapered fitting into it as shown in this pic (or over the nipple if you have a hose that will fit it). Attach the jar using the magnetic head anywhere below the nipple. |
| 5. If you have a friend to help out, have them sit in the driver seat of your Jeep JK Wrangler with the engine off. On your command, have them push down on the brake pedal slowly but with as much effort as they can. |
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6. While your friend is holding the brake pedal down, slowly loosen the brake caliper bleeder valve to open it and allow for the fluid inside to be flushed out. You should be able to see the fluid and air bubbles moving through the clear vinyl hose in a burst and once they have stopped moving, close off the valve. At this point, instruct your help to release the brake pedal and repeat this process as many times as is needed until no more bubbles come out. Depending on how much air you have in your brake lines, you may see nothing come out the first couple times you do this and that is normal. |
| 7. When air bubbles are no longer discharging from your brake caliper bleeder valve, close it off by tightening it with an 11mm wrench and then reinstall the rubber cap. |
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8. Check the fluid level in your master cylinder, refill it as necessary (It is very important to NOT let your master cylinder run dry as it will suck in more air and make your problem worse) and then move over to the driver side rear brake on your Jeep JK Wrangler and repeat the process. |
| 9. Starting once again on the passenger side of your Jeep JK Wrangler, repeat steps #3-8 on the front of your Jeep. When finished, your brakes should have a nice firm and responsive feel to them. |
| 10. Check your Jeep JK Wrangler’s master cylinder level once last time and refill it as necessary, close your hood and you’re done. |
That’s it, you’re done. Your Jeep JK Wrangler now has brakes that have been bled and they should now function as they should.
Please let me know if you have any questions. |
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Nice basic maintenance tip - I’ve had to do this a few times on other vehicles, and it’s not too bad.
Wondering if you needed to add any steps because of the ABS? Haven’t attempted yet, but I’ve read that some vehicles require you to cycle the ABS pumps. Just wondering.
[...] Jeep JK Wrangler Brake Bleeding Write-Up [...]
[...] Brake Bleeding Write-Up [...]
Very easy to follow. Thanks. Wondering if there’s a way to bleed the brakes without someone else pressing the brake.
hi there. very informative article. i have a question that i need help with. my mother’s mechanic just changed the front brake calibers on my 1992 jeep wrangler. this was after changing the front brake pads a few days before. once the pads were changed and i drove the car, the driver side tire area was smoking. the mechanic said then i needed new brake calibers. he changed those and now the brakes don’t work. he bled them, and the brakes still want “hold volume.” someone else then suggested to him to check the master cylinder. he replaced that with a used master cylinder and still no brakes. geesh. any ideas? help appreciated.