Whistle sound after turning off car
#1
Whistle sound after turning off car
After turning off the car and taking the keys out of the ignition I hear this higher pitched whistle sound for just a second. This doesn't happen every time I go for a drive and turn off the car (actually it's only happened twice so far). My girlfriend's brother also has an '05 MCS that exhibits the same whistle. Like I said, this doesn't happen all the time. I just tried to duplicate the sound and could not, so it appears random.
I'm not that good looking, so what could it be?
Thanks, guys.
I'm not that good looking, so what could it be?
Thanks, guys.
Last edited by Xymox; 07-14-2008 at 04:36 PM.
#3
After turning off the car and taking the keys out of the ignition I hear this higher pitched whistle sound for just a second. This doesn't happen every time I go for a drive and turn off the car (actually it's only happened twice so far). My girlfriend's brother also has an '05 MCS that exhibits the same whistle. Like I said, this doesn't happen all the time. I just tried to duplicate the sound and could not, so it appears random.
I'm not that good looking, so what could it be?
Thanks, guys.
I'm not that good looking, so what could it be?
Thanks, guys.
make sure the vacuum hose on the fuel pressure regulator is on
#4
#5
#6
Checked. All is good! Maybe it's the back-to-back bottles of Chevron w/ Techron I added the last two times I filled up.
#7
Join Date: Feb 2007
Location: Washington. No, the other one.
Posts: 1,517
Likes: 0
Received 3 Likes
on
3 Posts
Trending Topics
#9
#12
#13
Do you know what general area the noise comes from?
My car will sometimes make a "whirrrrrr" noise immediately after shutting it off and pulling the key out of the ignition. It only seemed to do this when Auto A/C was on, or if the recirculate mode was on.
I dug around, and found that a flap in the ventilation system moves (probably the fresh air flap?) the same time this noise happens. And it seems loudest on the passenger side, near the front of the vehicle.
My car will sometimes make a "whirrrrrr" noise immediately after shutting it off and pulling the key out of the ignition. It only seemed to do this when Auto A/C was on, or if the recirculate mode was on.
I dug around, and found that a flap in the ventilation system moves (probably the fresh air flap?) the same time this noise happens. And it seems loudest on the passenger side, near the front of the vehicle.
#14
The deflating balloon/pressure release noise sounds like it's going from the front passenger side of the car, just behind the engine. The sound only lasts a few seconds, so by the time I run around to hear exactly where it's coming from, it's too late. I even tried to pull into the garage, put the car in neutral, open the hood, turn off the car and run around to engine bay to listen.
#15
Sounds to me like it might be the refrigerant (A/C) pressurizing or something. My MCS does not do this, but my other vehicles do this after driving w/ the A/C on. The hotter the day, the longer it "hisses" for.
Try running w/o the A/C on (even better w/ the whole auto a/c system shut down), and see if your car hisses at you after a drive.
Try running w/o the A/C on (even better w/ the whole auto a/c system shut down), and see if your car hisses at you after a drive.
#18
Sounds to me like it might be the refrigerant (A/C) pressurizing or something. My MCS does not do this, but my other vehicles do this after driving w/ the A/C on. The hotter the day, the longer it "hisses" for.
Try running w/o the A/C on (even better w/ the whole auto a/c system shut down), and see if your car hisses at you after a drive.
Try running w/o the A/C on (even better w/ the whole auto a/c system shut down), and see if your car hisses at you after a drive.
#19
#21