High pitch sound 2002 Vue

[stikgawd]

Hello, I have a problem similar to this thread saturnfans.com/forums/showthread.php?t=50387&highlight=high+pitch+sound

When the engine is cold, I can drive for around 3-5 miles and the sound will then appear when I let off the accelerator. While I am driving or at a stop, if I press the accelerator just a tad the noise goes away. If I let off just a tad the noise comes back. THere have been a couple times that I have driven for miles and the sound doesn't rear it's ugly head *Usually when I am trying to show someone* but for the most part it does it everyday on the way to work intermittently all the way to and from. Now When I get to work or get home which is about 25miles, I put my vehicle in park and the rpms start to rise gradually until I turn off the engine. If I put it in drive the rpms kick down for what I assume are obvious reasons. I have listened for vaccum leaks but I cannot seem to find any anywhere. I noticed that when the rpms are going haywire, if I disconnect the plug from the sensor at my air filter, the rpms kick back down and the sound will only appear when I raise the rpms/press accelerator. The noise *Seems* to be coming from the air intake flapper area.

Any ideas or suggestions would be appreciated.

[far2grumpy]

Do you have four or six cylinder?

Will help when searching for various bulletins.

[far2grumpy]

Originally Posted by stikgawd

Hello, I have a problem similar to this thread saturnfans.com/forums/showthread.php?t=50387&highlight=high+pitch+sound

When the engine is cold, I can drive for around 3-5 miles and the sound will then appear when I let off the accelerator. While I am driving or at a stop, if I press the accelerator just a tad the noise goes away. If I let off just a tad the noise comes back. THere have been a couple times that I have driven for miles and the sound doesn't rear it's ugly head *Usually when I am trying to show someone* but for the most part it does it everyday on the way to work intermittently all the way to and from. Now When I get to work or get home which is about 25miles, I put my vehicle in park and the rpms start to rise gradually until I turn off the engine. If I put it in drive the rpms kick down for what I assume are obvious reasons. I have listened for vaccum leaks but I cannot seem to find any anywhere. I noticed that when the rpms are going haywire, if I disconnect the plug from the sensor at my air filter, the rpms kick back down and the sound will only appear when I raise the rpms/press accelerator. The noise *Seems* to be coming from the air intake flapper area.

Any ideas or suggestions would be appreciated.

If you have 2.2L ... see attached document.

[stikgawd]

I'm sorry... It is a 6cyl 3.0L AWD

Although I know that pdf was for a 4cyl I pulled the dipstick for the sake of
elimination and the noise didn't go away.

Also thank you for your time with this I am going to run it upto
the local schucks tomorrow and see if they can't pull a code off of it.
The check engine light also came on the same time this started.

Oddly enough, I ran it through emissions a month early to avoid any rush... This
happened right after that... If I hadn't ran it through early they wouldn't have
tested it

[far2grumpy]

Originally Posted by stikgawd

I'm sorry... It is a 6cyl 3.0L AWD

Although I know that pdf was for a 4cyl I pulled the dipstick for the sake of
elimination and the noise didn't go away.

Also thank you for your time with this I am going to run it upto
the local schucks tomorrow and see if they can't pull a code off of it.
The check engine light also came on the same time this started.

Oddly enough, I ran it through emissions a month early to avoid any rush... This
happened right after that... If I hadn't ran it through early they wouldn't have
tested it

Thanks for the update.

I'll see if there's a squeal fix for the 3.0. Please post the code(s) if present ... they are very helpful ... there are 3.0 owners on this forum who have this stuff memorized.

[stikgawd]

Just to let you know, the code was PO171 which basically told me there was
a leak somwhere so I pulled out the stethescope at work and started probing
around and found out that when I had the spark plugs replaced there was a bolt
not tightened near the air intake flapper... I tightened that down and the
squeal is gone and check engine shut off. Thank you for your time with this..
I appreciate it much.