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Parking brake repeated fail - what to do next...

kd1yt

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Before I gripe about the parking brake and its repeated fail, I want to say that I remain, overall, delighted by this truck, and this issue I am having with the P-brake doesn't take away from that.

But... [I did a search to see if anyone else is running into this, and, at least in a quick search, am not finding anything] I am having repeat trouble with the P-brake and it is highly annoying.

VERY interested in and will greatly appreciate others' suggestions.

From early in my ownership I started having repeat issues with the parking brake.

When the truck was new (August 2019), the P-brake worked effectively and normally. My truck is a 6MT. I routinely use the parking brake for the intended purpose, and I don't use it or abuse it for unintended purposes.

Within a month or two, something had come so loose so that when you pulled up the P-brake lever, nothing happened to apply braking, and the handle was so effortless that it was clear that nothing was going on.

Took it to dealer. They adjusted it. Worked OK again.

Got loose again. Was at the dealer for something else, they adjusted it again. Worked OK again.

Some months later, the P-brake started becoming noticeably less effective and the handle was taking less and less effort and no real braking going on. It was gradual at first, and then it became dramatic - it basically did nothing at all.

Took it to dealer - they said a part had come loose and gone missing, and that they didn't have the needed part in stock and they had to order the part. They got the part, installed the part, and the P-brake worked again. That was in Fall 2020. Wasn't driving much at all due to working from home in most of 2020 and the first half of 2021.

By Spring 2021, the P-brake was again having less and less effect. If I was stationary and in neutral on even the mildest of inclines, with the P-brake engaged, the truck would roll. It rolled less with the P-brake on than it would roll with the P-brake not on, but it shouldn't have been rolling at all.

And then one day, a few weeks ago, when I was exhausted from a long and havoc-filled day at work, and running errands after work, I accidentally drove away from Tractor Supply with the P-brake handle still up. At this point the P-brake was so ineffective, I didn't really notice the drag for about a third of a mile. Not something I would ever normally do. Not anything I would fail to immediately notice if the P-brake was actually engaging effectively. But I am sure it didn't do great things for the P-brake linings. And it took the effectiveness of the P-brake when engaged from "barely detectable" to "completely un-detectable" at preventing the truck, when in N, from rolling on even the mildest incline.

At this point I am super frustrated. I need to get the truck annual inspected (overdue, in fact), and it won't pass with a non-working P-brake.

From looking online, YouTube, etc., it appears that there are two places that can be adjusted - one by un-doing and lifting up the center console, and adjusting the cable, and the other by adjusting the 'ratchet wheel' within the brake housing, which affects how closely the P-brake shoes are positioned in relation to the P-Brake drum that is at the center of the rear brake disc "hat." Both look like "kind of a pain" - I am not mechanically intimidated, I have done DIY engine swaps - but removing or working under a half-removed console looks cramped and clumsy, and adjusting the star wheels seems to necessitate pulling the rear brake calipers to be able to remove the rubber access plug to get in/at the star wheels. And most of all I don't want to be trying things repeatedly trial and error to try to get to the bottom of it.

Part of me is inclined to take it to the dealer and demand that they fix it again, and hopefully for good. But based on experience to date, not especially confident that'll be the end result.

Part of me is inclined to just dive in and try to get to the bottom of it myself. But I don't want to do repeat trial and error. If I need to just bite the bullet and buy new (and, if available, better quality) P-brake shoes, I'd rather do that and just start from a clean slate - _if_ that is likely to actually produce better, and lasting, results.

Has anyone else run into this and are there known problem points or known fixes?

Thanks in advance!
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Kevin_D

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Sounds to me like you need to raise hell at the dealership: this is a safety issue, and may even fall under lemon-law protection.

Kevin
 

kevman65

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If you're still under warranty, go to a different dealer and tell them the issues and work done for it. Tell them it is inoperable at this point and state inspection is due.

If you're out of warranty, CarX. Tell them the issues and what has been done and what is happening. Have them check your entire brake system and repair the P Brake.
 
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kd1yt

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Thanks for the suggestions. I'm still under warranty. Next-nearest dealers are close to an hour away in opposite directions, and my job schedule is really pressed right now, which'd make it a PIA to go to another dealer, especially with needing to leave it there.... Guess I need to "apply strong encouragement" with my local dealer.
 
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kd1yt

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Now that I think of it, it's due to spend some time at the dealer in the near future for the latest clutch "solution" anyways.....
 

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kd1yt

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Outcome--- dealer put a doubled-up pair of locknuts on the adjuster, within the console, this time. Don't know why it's come loose so many times before, but I am wondering whether the threaded shaft on mine may be undersize- hopefully this fix will hold. It's been working for several weeks this time... fingers crossed...
 

99tj16jku21jt

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Experienced a similar problem on my ‘21 and the dealership ended up replacing the parking brake lever. So far, so good.

Is the fix your dealer performed still holding up?
 
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kd1yt

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Experienced a similar problem on my ‘21 and the dealership ended up replacing the parking brake lever. So far, so good.

Is the fix your dealer performed still holding up?
So far, yes.

Kind of wish I'd gotten a new lever, like you, since this had happened several times before.

With current supply chain snafus, you're fortunate that they had a lever! I have a few other warranty fixes that need parts (broken visor, one trim piece, leaky rear window) and the timelines are a long way out.
 

thomas1332

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I have had a similar experience with my 2001. Each time I have brought it in for 6 months service, the parking brake has needed to be "tightened". Each time after about 2-3 months it progressively becomes looser and looser. Very disappointing. I am going to show this thread to the Dealership. I hope that one of these solutions is a permanent fix.
 

doc-ketamine

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You can do this fix yourself with basic hand tools if it's just line tension.

I noted that my parking brake was no longer working Saturday ... the JTR could roll freely with the p-brake engaged ... this is the video in question which explains how to access the in-cab mechanism.

I was lucky, the cable locks that keep the parking brake cables in position, under tension, had popped out as the tension lessens after time. The above video was super helpful to visualize what I had to do.

Tough to get my meaty paws in there, and ended up using all my socket extensions and a deep-well 10mm socket on the tension nut (and lock nut). Took me a while to figure out how much tension was ideal, but now I feel it works as it should with no drag. Can freely coast on a 1-degree incline, or straight, and the p-brake will keep me in position in neutral on a 7-degree incline (didn't have anything steeper nearby).
 
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MrBones

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Reviving this thread. Happened to me this week. At first the JT wasn't holding on sloped driveways. Then, on Friday I yanked the handle and there was absolutely no resistance. Nearly yanked the handle off the pivot. I'm not nimble enough (spinal fusion) to get down and see clearly but I raised the console enough to feel that the cables had worked their way out of the yoke. I managed to get them back in and now the handle feels normal. I have a feeling this isn't the end of the story. There may be a trip to the dealer in the future.
 
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MrBones

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Reviving this thread. Happened to me this week. At first the JT wasn't holding on sloped driveways. Then, on Friday I yanked the handle and there was absolutely no resistance. Nearly yanked the handle off the pivot. I'm not nimble enough (spinal fusion) to get down and see clearly but I raised the console enough to feel that the cables had worked their way out of the yoke. I managed to get them back in and now the handle feels normal. I have a feeling this isn't the end of the story. There may be a trip to the dealer in the future.
First try was not successful. This time I managed to feel my way to the adjustment nut with a 10mm long socket on a 10 inch extension and hand tighten, I probably could have gone a little further but for now it's holding on my driveway that has a slight incline.
 

Advntrbound

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I'm glad you revived this thread. Guess what I'm doing tomorrow!!
 

MrBones

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Good luck! Here's the price I paid but it was worth it if I don't need to waste time at the dealer.
Jeep Gladiator Parking brake repeated fail - what to do next... Brake 1
 

MrBones

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Here we go again. I yanked up on the P-brake handle today and nothing. Apparently the cables worked loose again. Dealer says they are backed up and want me to leave it for 3 days just to look at it. I'm going to work on it again but question in the meantime:

With an AT is there potential for damage parking it on a 3-4% sloped driveway? I had this happen on my JKUR with 80,000 + miles and never fixed it and the transmission didn't seem to suffer any.
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