Two Issues....
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
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From: Chesterfield, VA
Still can't figure it out. I took it to two different mechanics who also couldn't figure it out. One thought the squeeking sound after shutdown was the AC unit releasing pressure but it does it when the AC unit is off.
I'm still clueless as well as to what is causing the whistling sound as well. Now that it is much colder than when I posted this, it doesn't do it all the time like it used to (but it still does it most of the time). I'm still guessing a small vacuum leak or something regarding the ram air that isn't entirely sealed.
The hunt continues.
I'm still clueless as well as to what is causing the whistling sound as well. Now that it is much colder than when I posted this, it doesn't do it all the time like it used to (but it still does it most of the time). I'm still guessing a small vacuum leak or something regarding the ram air that isn't entirely sealed.
The hunt continues.
The ram air not being sealed shouldn't matter, as I don't think it's really sealed 100% from the factory (correct me if I'm wrong). If you have an air leak on the intake you should look at stuff past the lid or even if the intake manifold isn't sealed correctly.
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
Likes: 0
From: Chesterfield, VA
I didn't remove the belt but I did view the engine from above and below on shutdown with the AC off and the squeak happens while the AC belt is not turning. Did the same with the two cooling fans and the squeak still happens even when neither fan is turning.
Whatever it is, it is not effecting performance in any way. I have a vacuum gauge that reads normal at all times, the dyno numbers are on par with the build (400 rwhp), it starts in ultra cold weather, it gets 19/28 mpg and it runs like a raped ape when you want it to.
Gremlins.
Whatever it is, it is not effecting performance in any way. I have a vacuum gauge that reads normal at all times, the dyno numbers are on par with the build (400 rwhp), it starts in ultra cold weather, it gets 19/28 mpg and it runs like a raped ape when you want it to.
Gremlins.
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On The Tree
Joined: Mar 2010
Posts: 112
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From: Iowa
I didn't remove the belt but I did view the engine from above and below on shutdown with the AC off and the squeak happens while the AC belt is not turning. Did the same with the two cooling fans and the squeak still happens even when neither fan is turning.
Whatever it is, it is not effecting performance in any way. I have a vacuum gauge that reads normal at all times, the dyno numbers are on par with the build (400 rwhp), it starts in ultra cold weather, it gets 19/28 mpg and it runs like a raped ape when you want it to.
Gremlins.
Whatever it is, it is not effecting performance in any way. I have a vacuum gauge that reads normal at all times, the dyno numbers are on par with the build (400 rwhp), it starts in ultra cold weather, it gets 19/28 mpg and it runs like a raped ape when you want it to.
Gremlins.
Just tryin to help.
Joined: Nov 2001
Posts: 34,627
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From: Schiller Park, ILL Member: #317
If there is something internal that continues to spin after engine shutdown, the only way to find out would be to prevent it from spinning in the first place, thus pull the belt.
On The Tree
Joined: Jun 2009
Posts: 171
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From: Maryland
not 100% sure but isnt the a/c compressor reciprocating pistons? reason being i dont think it would continue to turn over after the engine is shut down due to it trying to compress refrigerant. kinda like your engine will stop rotating without combustion..... the act of trying to compress something will stop rotation without something continuing the cycle. does that make sense?
sounds to me something in the AIR system isnt capped but i know you said you capped everything.
sounds to me something in the AIR system isnt capped but i know you said you capped everything.
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
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From: Chesterfield, VA
OK- I'm an idiot. I at least figured out the squeaking sound after shutdown. Yes, it is indeed the cooling fans. I ruled it out long ago because I thought they were not spinning when I looked at them from ABOVE the engine bay with my head canted at a weird angle. Today was the first time I actually had the car up on all four corners and could crawl underneath with a really good angle on everything. The fans are the culprit. Sorry to those who recognized early on.
So for anyone who I haven't alienated from this thread, what can I do short of replacing the fans to quiet things down? I've tried all kinds of lube but nothing shuts them up. There doesn't seem to be easy access to the inner workings of the fan where the source of the squeaking is coming from. Does the entire assembly need to be taken apart to get inside and grease things up? Also- the fans seem to kick on all the time on start up even if the car is cold- obviously a separate problem.
And yes, the loud whistling sound persists but I can now spend more time with that now that I know the squeak is more of an annoyance than a problem.
My apologies again but I guess that's why this is called the newbie area.
So for anyone who I haven't alienated from this thread, what can I do short of replacing the fans to quiet things down? I've tried all kinds of lube but nothing shuts them up. There doesn't seem to be easy access to the inner workings of the fan where the source of the squeaking is coming from. Does the entire assembly need to be taken apart to get inside and grease things up? Also- the fans seem to kick on all the time on start up even if the car is cold- obviously a separate problem.
And yes, the loud whistling sound persists but I can now spend more time with that now that I know the squeak is more of an annoyance than a problem.
My apologies again but I guess that's why this is called the newbie area.
Joined: Nov 2001
Posts: 34,627
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From: Schiller Park, ILL Member: #317
OK- I'm an idiot. I at least figured out the squeaking sound after shutdown. Yes, it is indeed the cooling fans. I ruled it out long ago because I thought they were not spinning when I looked at them from ABOVE the engine bay with my head canted at a weird angle. Today was the first time I actually had the car up on all four corners and could crawl underneath with a really good angle on everything. The fans are the culprit. Sorry to those who recognized early on.
So for anyone who I haven't alienated from this thread, what can I do short of replacing the fans to quiet things down? I've tried all kinds of lube but nothing shuts them up. There doesn't seem to be easy access to the inner workings of the fan where the source of the squeaking is coming from. Does the entire assembly need to be taken apart to get inside and grease things up? Also- the fans seem to kick on all the time on start up even if the car is cold- obviously a separate problem.
And yes, the loud whistling sound persists but I can now spend more time with that now that I know the squeak is more of an annoyance than a problem.
My apologies again but I guess that's why this is called the newbie area.
So for anyone who I haven't alienated from this thread, what can I do short of replacing the fans to quiet things down? I've tried all kinds of lube but nothing shuts them up. There doesn't seem to be easy access to the inner workings of the fan where the source of the squeaking is coming from. Does the entire assembly need to be taken apart to get inside and grease things up? Also- the fans seem to kick on all the time on start up even if the car is cold- obviously a separate problem.
And yes, the loud whistling sound persists but I can now spend more time with that now that I know the squeak is more of an annoyance than a problem.
My apologies again but I guess that's why this is called the newbie area.
As for fixing it, I never bothered to. I don't know if the motors are serviceable (I never investigated this). Replacement might be the only option, if it really drives you nuts. Once I knew what it was, it didn't really bother me any more.
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
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From: Chesterfield, VA
Yeah, I'm just going to leave the squeaky fans alone and focus on the possible vacuum leak. I guess the AIR system is worth another look. Is there maybe something behind the intake that needs to be capped? It's a bitch seeing back there even with a mirror.
Launching!
Joined: Feb 2010
Posts: 264
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From: Twin Falls Idaho
Thought I would post a vid of the engine sounds- not sure if this will help, but...
http://smg.photobucket.com/albums/v4...t=M4H00179.mp4
http://smg.photobucket.com/albums/v4...t=M4H00179.mp4
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
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From: Chesterfield, VA
If you figure it out please post the solution.
Thread Starter
Launching!
Joined: Mar 2009
Posts: 203
Likes: 0
From: Chesterfield, VA
Looked at some diagrams of what is behind the intake and started pulling off all the extra AIR system stuff that was still on my car after the pump was removed. Removed the vacuum line elbows, the check valve and the vacuum solenoid (the shutoff valve was already off). I then reached behind the intake and felt where one of the elbows attached to the tee and capped that off.
Question- the other part of the tee goes to what? Can that be removed and capped or should I leave it alone?
Question- the other part of the tee goes to what? Can that be removed and capped or should I leave it alone?