soft brakes and brake lights not working - JeepForum.com
 
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post #1 of 6 Old 01-09-2014, 03:51 PM Thread Starter
cwig12
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All of the sudden the brakes on my dad's 98 tj went soft when turned on and driving. Checked fluid levels and they are full, checked the vacuum line, clear of debris. When the car is off the brakes are stiff. Also the brake lights won't work either. Any ideas? It's a manual transmission if that matters.


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post #2 of 6 Old 01-09-2014, 05:09 PM
JFM626
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I can't see the two being related, but check you fuses first for the no brake light problem.

For the soft pedal issue, (without loss of brake fluid) I'd pull the wheels and check for loose and broken or missing parts. I have seen where the brake disc pad has fallen out, (high mileage on pads and rusty)

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post #3 of 6 Old 01-09-2014, 06:18 PM Thread Starter
cwig12
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Fuses appear to be fine, checked the brake pedal switch that pushes in and releases against it. That seems to be fine. Ran the hazard lights and everything works, flipped the other switches and those work. Reseated some connections and still nothing.

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post #4 of 6 Old 01-09-2014, 07:04 PM
JFM626
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Quote:
Originally Posted by cwig12 View Post
Fuses appear to be fine.
With the new style fuses, a visual check quite often is not enough. Use a multi mrter set to ohms to check for continuity. You don't need to remove the fuse to do this. As well as checking the fuses under the dash, check the ones under the hood as well.

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post #5 of 6 Old 01-09-2014, 08:14 PM
Karottop
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When the jeep is running does and you press the pedal, does it slowly creep to the floor? Can you pump it to regain pressure? Check the floor of the jeep on the drivers side for wetness. If the master cylinder is leaking it will usually leak on the inside, and it might not be visible right away in the reservoir.
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post #6 of 6 Old 01-09-2014, 08:21 PM Thread Starter
cwig12
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Ill have to check, unfortunately it's all wet due to melting snow. Thanks.

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