97 Park Avenue to gut or not gut airbox? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-28-2008, 11:08 PM   #11
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Quote:
Gutting my air box completely woke the sound up for me.
Airbox whistle or exhaust note?
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Old 01-28-2008, 11:37 PM   #12
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Note, and a new found whistle when you hold throttle at a certain position, mainly right before the car shifts which is odd. 5 transmissions do it, so I'm convinced its just from pcm cutting timing and sucking more air.
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Old 01-29-2008, 01:29 AM   #13
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Quote:
Originally Posted by putertopia
Note, and a new found whistle when you hold throttle at a certain position, mainly right before the car shifts which is odd. 5 transmissions do it, so I'm convinced its just from pcm cutting timing and sucking more air.
If it'* arond 3500RPM, my '95 SLE did it. Also had a 60 transmission.. and it wasn't gutted either (airbox)
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Old 01-29-2008, 11:26 AM   #14
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It'* not really RPM specific... but it does get a bit louder around 3500 RPM
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Old 02-18-2008, 05:01 PM   #15
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Ok I now have the airbox out of the buick and was wondering how does it come apart? I took it out it one big piece and need to know how to seperate it now.
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Old 02-18-2008, 06:30 PM   #16
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Don't know what yours looks like, but if it is like ours, schroll down this link and see pics I posted.
http://www.bonnevilleclub.com/forum/...408&highlight=
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Old 02-18-2008, 07:42 PM   #17
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Quote:
Originally Posted by egladman
Ok I now have the airbox out of the buick and was wondering how does it come apart? I took it out it one big piece and need to know how to seperate it now.
I'll fish mine up from the garage after dinner and post pics of how to take it apart...
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Old 02-19-2008, 08:28 PM   #18
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My car started to whine like crazy after I gutted the box.
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Old 02-19-2008, 10:21 PM   #19
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thats because its SC... it wont be quite as pronounced on a NA engine, but still will sound better.
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Old 02-19-2008, 11:36 PM   #20
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OK, assuming you have the same airbox as I do...

You need to remove the airbox from the car, as the plenum opens on the bottom. Don't bother disconnecting the battery.

Follow the arrows....


Step 1, Undo the accordion tube from the box, then open the PCM compartment by removing the top two screws. The lid will hinge forward on tabs at the front. Set it aside.

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Step 2, remove the PCM. It will simply lift out, then set it aside. DO NOT REMOVE THE CABLES FROM THE PCM.
Next, unscrew the 2 screws the core support mount, and the bolt at the top right, insisde the PCM compartment. Lift out the box.

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Step 3, undo the filter wing-bolts, and remove the cover, and the filter inside.

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Step 4, flip the box over and undo the five bolts that hold it together(red arrows), then pull the box open from the green arrows. Make sure to open it from the filter side, as the other end has a foam ring that attaches to both halves. Also, the foam seal at the filter end is attached to the filter side of the two halves, make sure not to pull it off with the lower half.


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Step 5, there will be two white plastic baffles inside, simply pull them out.

Step 6, reverse the disassembly process to put the box back together. Make sure that the strip of foam at the filter side of the bottom is properly in place.

Step 7, enjoy your new-found whine.
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