whats that noise??

[60sec_assassin]

i don't know if its me or what but every time i park my mm and shut the driver side door i hear a low howl or hiss or something after i shut the door, the sound isn't coming from the door but under the hood! does anyone else hear this or is it just me?:cool:

[BlackHole]

Sounds like the air ride in back. Basicly its leveling itself out. does it sound like a long drawed BURRRRRRRRRRRRR if so thats the airride.

[MarauderMark]

i don't know if its me or what but every time i park my mm and shut the driver side door i hear a low howl or hiss or something after i shut the door, the sound isn't coming from the door but under the hood! does anyone else hear this or is it just me?:cool:


Yea but my noise sounds like a dead person releasing there last breath slowly. Kinda hollowy .

[Marauder386]

Yeppers, that is your suspension...no need to worry !

:cool:

[BlackHole]

Yea but my noise sounds like a dead person releasing there last breath slowly. Kinda hollowy .


No yours just whistels and not to the tune of HI HO HI HO its off to work I go. :burnout:

[CBT]

I hear wailing noises coming from under/behind my car, too. Sounds like "HEY! I JUST GOT PUNKED BY A MARAUDER !!" Then moaning sobbing noises...

[Blue03]

i don't know if its me or what but every time i park my mm and shut the driver side door i hear a low howl or hiss or something after i shut the door, the sound isn't coming from the door but under the hood! does anyone else hear this or is it just me?:cool:

I agree and believe it to be your rear air suspension relaxing from the drive. If you have a second, when you get out and close doors, you can watch the rear wheel well to tire clearance settle down a couple inches. My 95 GM LX HPP does it too. I've seen Town Cars and Continentals do it as well. Seems more noticable when the trunk is loaded and I've had a couple people in the back seat. I think when you back out of a driveway it stays down (maybe for visability) until you put it in drive and start forward. Sometimes it seems as the horizon moves down in the rear view mirror as it inflates... but maybe thats just me as well.

[CRUZTAKER]

Air ride.....not to worry.:D


Sounds like Marauder flatulence. :baaa:

[BillyGman]

I think I know what he's talking about. I've heard the noise too, and it isn't the noise that you hear when you start her up and the air suspension adjusts. It's something totally different. It does sound like a gasp, and it comes from somewhere under the hood. Do you guys still think it could be the air suspension? Because it doesn't come from the back of the car at all. but whatever it is, I'm not really worried about it myself since it's been doing that from day one, and it merely lasts about one second.

[Directedby]

My intake gives a deep gasp when i turn the engine off.

[Dr Caleb]

Do you guys still think it could be the air suspension?


Totally Billy. All Panthers with air ride do this.

When you shut off the car, get out and close the door, you'll hear a faint hiss, like the car has had too much beans. :) But you won't hear it until you close the door.

It's just the suspension blowing off the extra compressed air and water in the lines, and reducing the suspension height to compensate for no longer having the driver in the vehicle.

[Macon Marauder]

I've noticed something similar that's more pronounced with the JLT air intake. It sounds like some sort of pressure release right near the intake or from the intake tube.

Doesn't sound like the suspension, but could be I guess. Isn't the compressor right underneath the stock air filter?

[HwyCruiser]

FWIW, the white dealy-bob in front of the airbox is called the air compressor muffler in the K&N Aircharger install manual.

http://www.kandn.com/instructions/63-1111.pdf

I usually get the "BRRRRRRRR" whenever I get in first thing in the morning after putting the key in, but I've never noticed it hissing when I get out. Maybe check to see if the hose popped off.

- JD

[Krytin]

It's the electric cooling fan on the radiator winding down. I've had it since day one - it sounds like the black CV in the first MIB movie. It sounds a little bit like a turbine winding down!

[BillyGman]

It's the electric cooling fan on the radiator winding down. I've had it since day one - it sounds like the black CV in the first MIB movie. It sounds a little bit like a turbine winding down!Paul, that's a different type of npise that you're talking about and I know exactly what you mean because that's exactly how I described it too. it sounds just like the car in the first MIB movie. I believe it's the atlernator clutch that does that, because ever since I S/Ced my car, it doesn't make that noise anymore, and that's because the alternator clutch is removed from the alternator, and a new standard pulley is installed during the Trilogy S/cer installation.

[the_pack_rat]

Well I know the sounds associated with the rear air suspension.

And I know about the fan sound just after you shut the car off(only for a second or two).

However, one other sound that I have noticed on mine :

If the HVAC is on when I 1st start the car, about 10-15 seconds after, I always seem to hear some air/vacuum bleeding off behind the dash for a few seconds ..... probably in the area of the ETC I would think.

Anyone else ?

[Krytin]

Paul, that's a different type of npise that you're talking about and I know exactly what you mean because that's exactly how I described it too. it sounds just like the car in the first MIB movie. I believe it's the atlernator clutch that does that, because ever since I S/Ced my car, it doesn't make that noise anymore, and that's because the alternator clutch is removed from the alternator, and a new standard pulley is installed during the Trilogy S/cer installation.

I'll buy that - makes sense! Also sounds like I might want to loose the clutch before it craps out on it's own, I will miss the cool sound!