XJ Only (Odd Sound after Shutdown)

[jeepxj3]

OK, I called a few of you guys to ask about this allready, but I wanted to spread the word.

Lets get a bit of a background first... I have owned 3 XJ's so far, a 93, 96, and the 01. I havent spent enough time in the 95 to know if it happens in this one yet.

Basically after driving around for an extended period of time, after shutdown, a noise will come from under the dash. I wish I could describe it but words elude me... Me personally I have always just ignored it, the noise scares the hell out of anyone that has ever sat in my Jeep and I have left (Like when going to prepay for gas).

Just wanted to see what you guys thought, or if any of you have heard this in your Jeeps.

[96greenxjjeep]

whats the sound sounds like does it sound like anyhting

[Deadman 94 xj]

If the heats on could be something decompressing. Not sure though, sometimes I can hear relays clicking but that wouldn't be enough to scare anyone.

[TimMichaels]

Ghost.

[jeepxj3]

whats the sound sounds like does it sound like anyhting

kinda like a buzzing or un winding of something? Its an odd noise, I cant describe it, ill have to take a vid of it later and post it.

[96greenxjjeep]

sound would be good

[96greenxjjeep]

do you have your heater on when you shut it down it might be you fun spinning down try not running your heater fan and shut it down

[jeepxj3]

do you have your heater on when you shut it down it might be you fun spinning down try not running your heater fan and shut it down

nope, happens winter or summer, doesnt really matter, sound seems to come from under the DS dash.

[trailblaze]

what side of the dash does it come from??

have you kinda crawled under and listened and tried to pin point it??

which xj... the 01??

[96greenxjjeep]

maybe its your door buzzer thing i know on my 90 it would just go off then kinda get quiet and then stop when i shut it off

[DMG]

It is probably your hvac doors moving as they lose vacuum.

[jeepxj3]

what side of the dash does it come from??

have you kinda crawled under and listened and tried to pin point it??

which xj... the 01??

Please reread

maybe its your door buzzer thing i know on my 90 it would just go off then kinda get quiet and then stop when i shut it off

No its not the door buzzer the 93 and 96 have different buzzers than the 01.

It is probably your hvac doors moving as they lose vacuum.

I know that sound, nothing like a vacume door closing.

[andrew2516]

I have no clue what the sounds is...It must be something they did in the later models though because I know my 93 and Seths 92 never made that noise.

Its an odd deep buzzing sound that only lasts like 1-2 seconds. I think it happened like 1-2 minutes after you shut the jeep off.

The first time I heard it was in your 96

So your 01 is making the noise now?

[jeepxj3]

I have no clue what the sounds is...It must be something they did in the later models though because I know my 93 and Seths 92 never made that noise.

Its an odd deep buzzing sound that only lasts like 1-2 seconds. I think it happened like 1-2 minutes after you shut the jeep off.

The first time I heard it was in your 96

So your 01 is making the noise now?

yup.

[jeepxj3]

Got some help from another site, heres what I have so far:

I know the noise you refer of. It sounds to me like it's something unwinding real quick or something. It happens on my 96XJ.....I don't think I've heard it on my 99, but I don't drive that one nearly as often.

Mine isn't all that loud or anything, but it is weird when I hear it.

If my lights are left on when I turn mine off, it will make a weird noise after 10 or 15 seconds. Reminds me a little bit of when my sons take their windup cars and pull them back fast and go past where they should have stopped....that kind of clicking noise. It's only when my lights are left on, though, so I don't know if it is a buzzer that just doesn't work right or what. It's been that way ever since I bought it at 47k miles. Startles you though when it happens.

I never realized if it happens when the lights are left on or not, but ill def. have to check it out.

[OverkillZJ]

Relax folks, it's just the flux capacitor discharging.



But it's OK, because I found you instructions to build a brand-new one for cheap, but should be newer and quiter! http://www.rookscastle.com/tutorials/time4.html

[jeepxj3]

Relax folks, it's just the flux capacitor discharging.



But it's OK, because I found you instructions to build a brand-new one for cheap, but should be newer and quiter! http://www.rookscastle.com/tutorials/time4.html

wow... way to take that WAY OT... Was this thread getting out of hand for you Matt? I was told this:

That's your XJ sighing in relief that the douchebag inside it is finally exiting.

:f2:

Which is way funnier!

[OverkillZJ]

wow... way to take that WAY OT... Was this thread getting out of hand for you Matt? I was told this:



Which is way funnier!

Ok, I can't top that..;

And yes, there was entirely too much tech for me to handle!

[XJchris98]

Which is way funnier!

But so true!

[jeepxj3]

But so true!

takes one to know one buddy

[CRCs Reality]

I have no clue what the sounds is...It must be something they did in the later models though because I know my 93 and Seths 92 never made that noise.

Its an odd deep buzzing sound that only lasts like 1-2 seconds. I think it happened like 1-2 minutes after you shut the jeep off.

The first time I heard it was in your 96

So your 01 is making the noise now?

Hmm, my '99 never did that either... I'm going with VetteBoys answer

[Krod]

J does your XJ have the automatic headlight off after a few seconds thing?

Could be the timer. But I don't follow the Uni-Jeeps as closely...so who knows

[jeepxj3]

J does your XJ have the automatic headlight off after a few seconds thing?

Could be the timer. But I don't follow the Uni-Jeeps as closely...so who knows

IDK, might be the timer, im not worried about it really, NorthFaceZJ keeps bugging me about it, so I posted it up because it does seem a bit odd that I have owned 3 Jeeps and its done it in every single one of them...

Hey Krod figure out that rust issue yet? My uniHeep doesnt have that issue....

[MF Steve!]

My '86 MJ did it. No clue what it is.

[jeepxj3]

Chris you have to spend some time in your Jeep to know if it happens or not, IE, hooking up with wemenz or driving the damn thing.... No point in having it if you dont use it?! Am I right or am I right???!?!