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Topic
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My father in law is having trouble out of the brakes on his jeep.
Here’s what happens: when he backs out of his driveway they work fine. When he backs into the road, presses his brakes to stop, shift into drive, and presses the gas to go the brakes will grab and it’ll jerk and you can tell the vehicle is pulling against the brakes. After about 15 feet or so it’ll stop and you can drive like normal. It doesn’t do it every time you stop and does it mostly the first couple of times you stop when driving. After everything is warm the problem doesn’t hardly happen.
I’ve checked a few things and right now the jeep is sitting up on jack stands so i could look at the brakes and the emergency brakes. The e brakes seemed to be working perfectly fine. And they grab and release perfectly fine. It wouldn’t be an emergency brake problem because he has never used them so they never would have been in contact in the first place.
Last week when he drove home he noticed a burning brake smell. When he got out of the jeep he didn’t see anything smoking but the rear passenger wheel was radiating heat and smelled very much like burning brakes. We looked at everything but didn’t see anything wrong.
This may or not be a huge clue to the problem for one of you all. On the dashboard the abs and the esp bas lights are on. They’ve been on since all this started.
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Sounds like a stuck caliper.
What do you mean when you say stuck? Do you mean the piston in the caliper or do you mean the slide pins in the caliper?
Get to a shop and get the codes pulled for ABS and traction control systems. These codes aren’t going to be something you can find with the parts stores pocket scanners. ABS maybe, but traction control, definitely not.
[quote=”ewhitaker0020″ post=119490]What do you mean when you say stuck? Do you mean the piston in the caliper or do you mean the slide pins in the caliper?[/quote]
It could be both. If the slides don’t move that can cause the burning.
If the caliper itself does not release that can cause the burning.http://www.ericthecarguy.com/faq/solving-brake-problems?start=3#HowtoDiagnoseaBadBrakeCaliper
Yes, you supposed to have rotor+drum parking brake combo in the rear.
http://www.jeep4x4center.com/jeep-brake-parts/wrangler-jk/
And P-brake shoes are likely the culprit. Esp cuz he NEVER used them. No use = rust and stuck.Or, simple dirt and debris.
Of course, it might as well be as simple as caliper guide pins needed lubrication, but it awfully sounds like P-brake shoes. Is the rotor itself nice and grey color, or it’s blue-ish tint? If it’s blue-ish or, lord save, yellow-ish, ROTOR was overheated and then yes, caliper decided to jam on it.
We will be taking everything apart today and I’ll check all of the parts. And it’s the rotor/drum p brake combo.
Good. PB shoes will actually shoe uneven wear very well. They should have smooth even mating surface. Should you see one edge worn out to nothing, and the rest never touched – there you go.
I have gut feeling, as that is not sealed system, you simply built up enough debris inside PB drum, to cause trouble. When you take rotor/drum off, you’ll notice, how easily it is to push PB shoe this way or that way by hand. That ease of directional displacement makes me think that it’s PB shoe related. Go in reverse – it catches and scoots somewhere, go forward – it grabs drum and then slowly re-sets into the right spot. Dirt.Okay, I took the back brakes apart and the pads, especially the passenger side, were completely frozen in place. They had rusted in place and was causing the brakes to grab. This took care of the brakes grabbing but the noise is still there. It only happens after stopping and trying to go again. You can feel and hear it. The noise isn’t loud more like a grinding. None of the brakes are rubbing anymore. It only lasts for a second or so. Does this have anything to do with the abs and the esp bas lights being on?
And just to let you know there was no problem with the parking brakes and the caliper pins were in great shape.
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