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Old 04-08-2013, 01:19 PM   #31
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The moral of this story: Don't take your wrangler off road.
I thought it was "Friends don't let friends clutch."

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Old 04-08-2013, 01:43 PM   #32
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Let me get this straight:

When going down a steep hill you want the jeep to be in gear and just use the break? Can you throw it in neutral and let off the clutch and use the breaks?

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Old 04-08-2013, 01:47 PM   #33
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Let me get this straight:

When going down a steep hill you want the jeep to be in gear and just use the break? Can you throw it in neutral and let off the clutch and use the breaks?
neutral is safe, but you lose the additional control from the engine braking.
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Old 04-08-2013, 01:50 PM   #34
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Let me get this straight:

When going down a steep hill you want the jeep to be in gear and just use the break? Can you throw it in neutral and let off the clutch and use the breaks?
For what reason? The best way to descend steep hills is use the lowest gear possible and just let the engine do the braking. If it is absolutely necessary, use a little brake pressure as necessary to keep things low and slow and under control
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Old 04-08-2013, 01:57 PM   #35
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There is a hill up here that we call "slip 'n slide". The boys with the old carbureted engines have a hell of a time on it because their engine wants to flood out while descending. I just put mine in 1st gear and 4L-- more brakes won't do anything because I slide down anyway-- the engine never goes above idle. With the tranny in gear and clutch engaged; at the bottom one can kind of "catch up" by just giving it the gas.
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Old 04-08-2013, 01:58 PM   #36
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The Jeep manual transmission is designed in such a way that in 4lo there is no need to engage the clutch at all (or the brakes for that matter) downhill. In first gear, in 4lo, the jeep will crawl slowly at a walking pace, often less. There are times I have to give it gas.

A friend of mine and I call it the easy button for hills.

Use this as a warning for all you manual transmissions out there. DONT try to over think the jeep. 1st gear in 4lo was made for crawling up and down. just let it do it's thing.

Note: Totally sounds like an over-rev situation...
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Old 04-08-2013, 02:37 PM   #37
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I bet that the friction material that's riveted/bonded to the steel disk broke free and scattered itself inside the bell housing when it oversped.

They will install a new clutch pressure plate, disk and throwout bearing as this is usually a set. The flywheel will probably need to resurfaced or replaced as it made a mess out of it.

It'll be interesting to see if this type of failure is going to be covered under warranty. They'll know what happened when they get it apart. I hope it all works out in your favor.

4 low isn't something we use everyday, so it might be a good idea to practice using 1st gear 4 low on level ground and stepping on the brake without releasing the clutch just to get the feel of it. This way you know what to expect and how the Jeep will react when on steep grades.
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Old 04-08-2013, 03:18 PM   #38
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Let me get this straight:

When going down a steep hill you want the jeep to be in gear and just use the break? Can you throw it in neutral and let off the clutch and use the breaks?
excessive braking while descending will lead to brake fade as well as glazing both reducing the effectiveness.
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Old 04-09-2013, 09:36 AM   #39
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I imagine that his initial descent down the hill was with the clutch engaged (pedal up) putting force on the engine (showing tach at 4k) and then the OP pushed in the clutch and that is when the clutch went boom.

8000 rpm equals 133 rotations per second for clutch grenading.

Let's say the tire speed was 2 rotations a second...

2 rotations/second * 4.10 gear ratio * 4 to 1 transfer case ratio * 5 to 1 1st gear ratio === 164 rotations per second or 9,840 rpm (BOOM!)
I was skeptical of the math here at first, thinking 2 revs per second downhill was a lot. Then I backed into it. In first gear, 4 lo, you will create 9,840 rpms at just 3.97mph (with 35's)... THAT is scary.
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Old 04-09-2013, 09:58 AM   #40
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I thought clutches were not covered under warranty.
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Old 04-09-2013, 10:00 AM   #41
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I thought clutches were not covered under warranty.
12 month or 12k miles
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Old 04-09-2013, 10:02 AM   #42
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12 month or 12k miles
X's Wearable items like brake rotors, pads, clutches even windshield wiper blades are covered within this period.
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Old 04-09-2013, 05:13 PM   #43
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In my case it isn't a matter of relying on muscle memory so much as "focus on one thing, and if things start to get a little out of control, the muscle memory kicks in". And that is exactly why I said I'm a chicken and a wimp... when possible, I prefer to take it slower. I did some off road driving this winter on ice, and won't be repeating that.

I also do as you mention and go with a group of much more experienced guys. Ultimately though, we all learn through making mistakes... I'm pretty sure the OP won't be repeating this one (no matter who pays for the replacement clutch).
I hear you, when I get back in a vehicle that's an automatic and stop suddenly I find I jam the floor w my left foot putting in an imaginary clutch since it becomes so automatic to do so. At any rate this is a good reminder.
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Old 04-09-2013, 05:21 PM   #44
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Well the dealer won't honor the warranty claiming there is too much mud under the carriage. So looks like I'm going to try puting a new clutch in myself. Guess I shouldn't have bought the extended warranty...
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Old 04-09-2013, 05:42 PM   #45
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Well the dealer won't honor the warranty claiming there is too much mud under the carriage. So looks like I'm going to try puting a new clutch in myself. Guess I shouldn't have bought the extended warranty...
you should able to get a refund on the extended warranty. Seems like the last couple of weeks there have been several people on this forum reporting warranty work denied because of mud. I guess Jeep really is not serious about being trail rated.
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Old 04-09-2013, 06:34 PM   #46
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See my first post... Clean the jeep before you take it to the stealership.

My buddy did that and got his engine replaced. They couldn't prove he went in deep water or hit a big puddle while driving after a rain.

Clean it and take it to a different dealership. Worth a try.
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Old 04-09-2013, 06:38 PM   #47
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you should able to get a refund on the extended warranty. Seems like the last couple of weeks there have been several people on this forum reporting warranty work denied because of mud. I guess Jeep really is not serious about being trail rated.
Mud inside the housing or on the frame. I would assume it was internal. I also understood warranties didnt cover abuse. I feel sorry for El, but seems like he put a cup load of abuse on the drive train
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Old 04-09-2013, 07:01 PM   #48
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Warranty..............To repair and replace parts that are defective from the factory.
Nothing about replacing good parts that we break.

Sorry, but that is the way I read the warranty.

Altho: there are dealers out there that will repair and replace without asking questions. It is great when we find one of those kind.
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Old 04-09-2013, 07:04 PM   #49
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taking it to another dealer won't help, it will be on record. plus, if you drop your phone and crack it, the phone warranty won't do jack for you. same goes here.
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Old 04-09-2013, 07:11 PM   #50
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Warranty..............To repair and replace parts that are defective from the factory.
Nothing about replacing good parts that we break.

Sorry, but that is the way I read the warranty.

Altho: there are dealers out there that will repair and replace without asking questions. It is great when we find one of those kind.
I agree especially when it comes to clutches. Heck most anyone could roach a clutch in 1/2 hour if they were warranty items and the person wanted it replaced before the warranty expired. Clutches, brake pads, tires etc can all be items that might last one person for 100,000 miles and the next guy can abuse a clutch to death in 100 miles or less. What bothers me is all the posters that are getting denied simply because a vehicle has mud. The week I got my new Jeep I did 30 miles on a dirt road and it rained like crazy and my under carriage was coated with mud that made it look like I was in a mud bog race when in fact it was a smooth dirt road that you could have driven your average low rider without issue.
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Old 04-09-2013, 07:50 PM   #51
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I agree especially when it comes to clutches. Heck most anyone could roach a clutch in 1/2 hour if they were warranty items and the person wanted it replaced before the warranty expired. Clutches, brake pads, tires etc can all be items that might last one person for 100,000 miles and the next guy can abuse a clutch to death in 100 miles or less. What bothers me is all the posters that are getting denied simply because a vehicle has mud. The week I got my new Jeep I did 30 miles on a dirt road and it rained like crazy and my under carriage was coated with mud that made it look like I was in a mud bog race when in fact it was a smooth dirt road that you could have driven your average low rider without issue.
Yes; but a shredded clutch is pretty obvious, along with some other things that get broken.
I got some warranty work done on mine last year with plenty of mud on my rig. They didn't even ask about it. I think some are getting turned down for more than just mud if the truth be known.
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Old 04-09-2013, 08:18 PM   #52
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Sorry to hear about the grenaded clutch. I've honestly never been tempted to take a manual transmission out of gear or to ride the clutch to go down a hill. Generally no gas/gear means I'm either slowing down from drag/friction on a mild/moderate grade or I'm on the brakes to control my speed on a steep grade...no real pay off.

Off Road is a somewhat different ball game - given how steep was some of the terrain my Rubi crawled over I'm of the opinion that if 1st gear in 4-Lo cannot control the descent than what I need is a parachute - because my Jeep is in free fall at that point and nothing else will help.
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Old 04-09-2013, 08:44 PM   #53
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Warranty..............To repair and replace parts that are defective from the factory.
Nothing about replacing good parts that we break.

Sorry, but that is the way I read the warranty.

Altho: there are dealers out there that will repair and replace without asking questions. It is great when we find one of those kind.
x2 the part wasn't defective...
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Old 04-10-2013, 08:56 PM   #54
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I prefer to put the load on the easily replaceable brake pads, rather than the clutch.
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Old 04-11-2013, 06:54 PM   #55
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Good news, I called the dealer and made a big stink. So they are now honoring the warranty. They also said it was the clutch that failed, probably my fault but that's all relative now haha
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Old 04-11-2013, 07:32 PM   #56
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I prefer to put the load on the easily replaceable brake pads, rather than the clutch.
On the streat that is fine. Riding your breaks going down anything that's steep enough that you have to be in 4 low is a huge mistake.

Hell do a simple YouTube search ans you can see all kinds of people flip because they kept there feet on the damned brake.

The only time I use my brake is to stop, or if I attempted a long descent in the wrong gear and have to go up or down a gear. I use just enough brake to keep the jeep from running away when I hit the clutch.


Glad you got them to cover it OP.

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