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Old 06-08-2013, 02:35 AM
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Odd Noise

Hello,
I'm new to owning a Jeep, and mine is a JK Unlimited Rubicon 10th Anniverseary, I've owned it about a week and a half, and ith as between 500 and 600 miles on it.

I just got home from work today, and parked it in my drive way. As I was getting out, I heard some noises...

There was a metallic ticking, noise. I think this is normal, as most cars tend to do this sort of thing as the exhaust is hot and cools and metal expands and what not.

However,
I also heard a peridoic noise, sounded like maybe some liquad was dripping onto something hot and boiling off right away. No drips under the Jeep though. But if somthing was dripping onto the hot exhaust and boiling off you woudln't see it. Well it's 230AM, as I worked overtime tonight, so Hard to really tell.

Just wondering if this is a normal noise for a jeep to make. I did not use the AC on the way home from work. Also, it did not rain at work today, but the Jeep is/was covered in condensation from dew after work.

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Old 06-08-2013, 04:42 AM   #2
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Did it smell? Any oil will stink if dripping on a hot exhaust.

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Old 06-08-2013, 09:57 AM
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Did it smell? Any oil will stink if dripping on a hot exhaust.


I didn't notice any smell.
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Old 06-08-2013, 10:36 AM   #4
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Originally Posted by insylem View Post
Hello,
I'm new to owning a Jeep, and mine is a JK Unlimited Rubicon 10th Anniverseary, I've owned it about a week and a half, and ith as between 500 and 600 miles on it.

I just got home from work today, and parked it in my drive way. As I was getting out, I heard some noises...

There was a metallic ticking, noise. I think this is normal, as most cars tend to do this sort of thing as the exhaust is hot and cools and metal expands and what not.

However,
I also heard a peridoic noise, sounded like maybe some liquad was dripping onto something hot and boiling off right away. No drips under the Jeep though. But if somthing was dripping onto the hot exhaust and boiling off you woudln't see it. Well it's 230AM, as I worked overtime tonight, so Hard to really tell.

Just wondering if this is a normal noise for a jeep to make. I did not use the AC on the way home from work. Also, it did not rain at work today, but the Jeep is/was covered in condensation from dew after work.
Congrats on the new Jeep!
The metallic ticking, cracking, popping sound it typical of a new exhaust system cooling down.
Since you did not have the A/C on then, there should not be any liquid dripping, when hot. Sometimes you will get some condensation out of the exhaust at cold start up.
I would take it for a ride and warm the drive train up to operating temperature, this will also build the pressure up in the cooling system. Turn off the engine. Put the emergency brake on and block the wheels for safety. Next climb under it with a flashlight and start looking. Since you can hear it, then you should be able to see it.
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Old 06-08-2013, 10:42 AM   #5
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OP - did you have the HVAC controls set to defog at all? If so, the AC compressor will cycle to dry out the cabin air so the windshield doesn't fog. The sizzle would be from the condensation draining out the drain tube and dropping on the exhaust.
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Old 06-08-2013, 11:22 AM
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OP - did you have the HVAC controls set to defog at all?
Yes I did


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The sizzle would be from the condensation draining out the drain tube and dropping on the exhaust.
So I guess it's okay then. Wonder if I should reposition the drain tube? I mean, if cold water is dropping on a HOT exhaust... Woudlnt that cause a crack in the exhaust ?
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Old 06-08-2013, 02:29 PM   #7
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Yes I did




So I guess it's okay then. Wonder if I should reposition the drain tube? I mean, if cold water is dropping on a HOT exhaust... Woudlnt that cause a crack in the exhaust ?
The water from drain drips onto the side of the transmission. From there it can drip onto the exhaust pipe. No different really than driving a wet highway and having water from the tires get thrown onto the exhaust. No worries.

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