348 clicking noise

One thought, JD. I have seen where the flap for the air recirculation system can have a problem, and the servo tries to open or close it without success, causing a clicking noise. To see if this is what's happening, just open the trunk lid and have someone turn on the ignition. Watch to see if the flap (it's right there on the heater box at the base of the windscreen) is making the noise. There is a part that commonly breaks on these.

If you're talking about something more like a "buzzing" noise, or a "hum", it's probably the ABS servo.

 

its building up presure .

 

JD: The "normal" state on the flap depends on the setting on the control button on the climate control panel (the lower right button). It takes the flap about 5 seconds to cycle from the open position to the closed position. It's easy to break the connector piece on the flap, or knock it out of position, so that it doesn't cycle, it just goes "click...click...click".

Edit: The flap servo motor makes a soft "humming" sound while it is operating from open to closed. If the shaft is broken, then you get the clicking sound. This is just a possibility, yours could be fine. It's easy to check.

If the shaft IS broken, here's a good link:
http://70.85.40.84/~ferrari/discus/messages/256120/223545.html/

 

its the meter clicking over, it means you have to add more cash .

 

JD: I just noticed that the link wasn't working. Give me a minute and I'll try again.

So, can you tell if the flap is moving at all?

The dealer would probably want to replace the whole box, and I'll bet you can fix it yourself.

 

Try this one (and associated links):

http://www.ferrarichat.com/forum/showthread.php?t=67951&highlight=fresh+air+flap

 

Hill Engineering has a simple, cheap replacement part that fixes that flap. Hill is a sponsor on this site, so click on the sponsors link at the top of your screen. Or email them. Or PM paul348 (?) here on this forum.

 

OK - I don't know of a good exploded view of the box assembly, but this will give you an idea. #23 is "motor flap outside air/circulation air". You have to remove the trunk lining to get at it. This motor is attached to a shaft that the flap pivots upon. If you check the link in my earlier post, you'll see the little piece that gets broken.

In my case, the piece wasn't actually broken, but it was knocked off. I was able to disassemble and "reclock" the flap/shaft/motor. It has been working OK for five years now.
Image Unavailable, Please Login

 

"Is it possible...etc."

I can think of three ways it could get broken.

1) The flap is closed, and someone intentionally or accidentally pushes on it.

2) The flap is in either position, and it sticks in place against the rubber sealing pieces from lack of use, then breaks when the motor can't unstick it.

3) The flap is open, and someone sets a foreign object inside the box. When the motor tries to move the flap, it hits the foreign object and breaks the flap.

Or....is it possible that the guy drove a screw through the side of the box and it blocked the movement of the flap?