Just bought a 98 TJ. Brake (internal) light stays on. What can cause this? - Jeep Wrangler Forum
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Old 02-06-2011, 10:19 PM   #1
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Just bought a 98 TJ. Brake (internal) light stays on. What can cause this?

The parking brake doesn't work. What would cause the red internal brake light to stay on as if the parking brake were engaged? Guess I need to figure out why the parking brake doesn't work..


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Old 02-07-2011, 06:07 AM   #2
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There is switch at the base of the parking brake handle under the center console which you will have to remove to get to. The switch could be tripped. There may also be a fuse for it under the glovebox or under the hood that you could pull, not positive though on that

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Old 02-07-2011, 12:33 PM   #3
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Also you could be low on brake fluid in the brake master cylinder..Or the brakes are worn down and need replacement.. That will cause the light to come on when brake pads or shoes get worn down the fluid level goes down and trips the switch inside the master cylinder..

If the rear parking brake does not work.. Most possible problem is worn rear brake shoes and rear out of adjustment..
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Old 02-07-2011, 05:11 PM   #4
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Also you could be low on brake fluid in the brake master cylinder..Or the brakes are worn down and need replacement.. That will cause the light to come on when brake pads or shoes get worn down the fluid level goes down and trips the switch inside the master cylinder..

If the rear parking brake does not work.. Most possible problem is worn rear brake shoes and rear out of adjustment..
Thanks for the reply. I'll check it out.
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Old 03-18-2011, 07:32 AM   #5
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The parking brake doesn't work. What would cause the red internal brake light to stay on as if the parking brake were engaged? Guess I need to figure out why the parking brake doesn't work..

1) brakes may need to be replaced (really low pads)
2) brakes may be mis-adjusted (good pad, bad placement)
3) may have excessive slack in e-brake cable

Can't help you with the light, that is not a part I have torn into yet.

to check your brakes, take off one rear wheel and look at the studs, 1 or two MIGHT (i dont remember, i get rid of any i find) have something that looks like a thin threaded washer. take them off and you should be able to pull off the drum. If it pulls off and slides on really easily (the first time might be tough) then your brakes are probably mis-adjusted. There is an adjuster in about the low center of the hub, looks like a rod with a circle of teeth around it. I forget which way to spin it.

While you have the drum off, have someone pull the e-brake while you watch, you should see the pads move, if not, that could be your problem as well. Also look at the little hydrolic cylinder in the wheel, this is what actually applies the brake when your driving. It also helps auto-adjust the drum (i believe). if it looks like its leaking it needs to be replaced.

I've done several drum brake jobs, while its not simple, it is easy if you only do one side at a time (so you can use the other for reference when your stumped as to where a part goes), I find the hardest part is properly adjusting the brakes when done.
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