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Old 05-30-2015, 12:26 AM
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Burning smell / smoke while offroading

Last time I took my 01 wrangler off road I had a problem. Actually it was the last two times, but the first time I thought the smell / smoke was from mud. With 4wd high engaged in the more technical spots I noticed a burning smell / smoke coming from underneath.

Crawled under there and tried to figure out where it was coming from. Appeared to be coming from the tranny / transfer case area. It was smoking pretty bad for a bit. It continued to work fine, and I noticed no ill effect. Still this doesn't seem normal.

I am not sure where to start trouble shooting on this. Any help will be much appreciated!

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Old 05-30-2015, 12:38 AM   #2
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My guess is it is your clutch if you have a manual transmission. If you are modulating/slipping the clutch a lot that would make sense.

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Old 05-30-2015, 12:46 AM
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My guess is it is your clutch if you have a manual transmission. If you are modulating/slipping the clutch a lot that would make sense.
It is a manual, forgot to mention that. Yes, I was on the clutch a lot before this. Assuming this is the clutch, is this normal or am I putting unnecessary stress on it?
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Old 05-30-2015, 12:52 AM   #4
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It is a manual, forgot to mention that. Yes, I was on the clutch a lot before this. Assuming this is the clutch, is this normal or am I putting unnecessary stress on it?
this does happen although it isn't good for your clutch. If you are slipping it that much you should shift into 4low instead and let the gears do the work. It will also be easier on your motor. The more you slip it in that hard the sooner it will fail and you will need to replace it.
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Old 05-30-2015, 01:00 AM   #5
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It is a manual, forgot to mention that. Yes, I was on the clutch a lot before this. Assuming this is the clutch, is this normal or am I putting unnecessary stress on it?
Normal - no. Not that uncommon either in some situations. Check out the photo by Jerry in post #3 of the following thread. https://www.wranglerforum.com/f210/of...tch-69697.html
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Old 05-30-2015, 01:07 AM   #6
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Same happened to me when I was playing in the mud. It started smoking alot and about 5 months later my clutch completely gave out
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Old 05-30-2015, 01:07 AM
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Thanks guys! After reading the thread ngs552 linked, I'm not so worried about it.
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Old 05-30-2015, 01:23 AM   #8
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Same happened to me when I was playing in the mud. It started smoking alot and about 5 months later my clutch completely gave out
Mud is really hard on the clutch. It acts as an abrasive and will eat up the friction material real quick. Thats why you are not supposed to shift gears in deep mud. There is a fuse to bypass the clutch safety switch so you can restart the engine in 4L without using the clutch too.
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Old 05-30-2015, 01:55 AM
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Mud is really hard on the clutch. It acts as an abrasive and will eat up the friction material real quick. Thats why you are not supposed to shift gears in deep mud. There is a fuse to bypass the clutch safety switch so you can restart the engine in 4L without using the clutch too.
This makes me wonder, why is the clutch exposed to the elements? Is it possible to seal it so that it can't get mud in it?
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Old 05-30-2015, 02:23 AM   #10
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Well I wasn't that deep in the mud just up to maybe half rim deep.
But I guess I was on the clutch alot trying to get out alos
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Old 05-30-2015, 03:04 AM   #11
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This makes me wonder, why is the clutch exposed to the elements? Is it possible to seal it so that it can't get mud in it?
Part of it is for cooling, and another so that any clutch dust and particles can fall out the bottom.

Also you can get mud in the clutch housing and on the clutch, just not between the flywheel and pressure plate. If mud gets in between those components(like shifting in deep mud) then you start to have problems with abrading the friction material.
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Old 05-30-2015, 12:49 PM
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Part of it is for cooling, and another so that any clutch dust and particles can fall out the bottom.

Also you can get mud in the clutch housing and on the clutch, just not between the flywheel and pressure plate. If mud gets in between those components(like shifting in deep mud) then you start to have problems with abrading the friction material.
Thanks for the explanation.

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