So something new just started with the libby and I won't have a chance to chase it down until tmw. Maybe someone here knows what this is:

I noticed a new noise coming from somewhere around the firewall. I can hear it from inside but it's louder outside. It sounds like and electric motor is going and it lasts about 20 seconds after I kill the engine.

Anyone know what this is before I go digging?

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Former CRD owner... now I just sit around and stare at the wall.

It could be the FCV trying to close the flapper. I heard of some jamming the gears. Best to have someone shut the engine off for you so you can listen close.

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2006 Black Jeep Liberty CRD Limited
K&N, Samco Hoses, Michelin 245/70-16 LTX A/T2, Fumoto F-102, V-Force Muffler, Mopar, Hitch, Trailer Wiring, Skid Plates, Slush Mats, Rear Shelf, Predator Stage 1, Transgo, ORM & CodeReader, Facet 40109 Pump
"IT'S A DIESEL THING, YOU WOULDN'T UNDERSTAND"
Certified Services Auto & Truck Repair

If it is a whining sound it is probably the FCV. This is a normal sound.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.

It either just started or became significantly louder yesterday...

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Former CRD owner... now I just sit around and stare at the wall.

its the FCV, dont worry about it, eventually it will finish stripping the gears and stop making noise. problem solved.

its an ancillary part of the CRD, kinda like the appendix of the human body, cept when this one fails you just leave it.

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http://www.Colorado4Wheel.com
"Its not about what you can DO with your Jeep, its about where you can GO with your Jeep."
Knowledgeable - But Caustic

haha awesome... consider it fixed!!

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Former CRD owner... now I just sit around and stare at the wall.

ya, you'll notice a little more shutdown "shudder"(you will feel the last fire kinda jerk the vehicle) but other than that nothing, its wont throw a CEL or anything

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http://www.Colorado4Wheel.com
"Its not about what you can DO with your Jeep, its about where you can GO with your Jeep."
Knowledgeable - But Caustic

It sounds like the throttle to create vacuum to enable EGR. I thought it would throw a MIL, it does whenever I unplug it.

Typically it's pretty quiet then after about 20 seconds clicks as the valve slams open. There was a software update that opened it gradually to remove the click.

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2005 CRD Limited Flame Red w/ Renegade rock rails & light bar, AirLift 1000. 225/75R16 MT/R's on cheap black steel wheels, dual MOPAR subwoofers, Ipod kit & seat covers, Samco hoses - totaled and gone. 2008 WK Laredo 3.0L diesel - AirLift 1000, wife won't let me mess with it much. 2013 JK Sahara on order.

When unplugged yes, but when the valve just doesn't move, nope, no problem!

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http://www.Colorado4Wheel.com
"Its not about what you can DO with your Jeep, its about where you can GO with your Jeep."
Knowledgeable - But Caustic

Bettery yet, just remove the butterfly. Then you know it won't be stuck halfway closed.

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06 CRD
Kerma Tune
Fumoto valve
Cummins Lift pump
Selling Non F37 TCM due to having another child and needing a 6 passenger vehicle. Plans for Suncoast are now gone.

When mine went bad at 17k miles it started grinding real bad then got quiet, too quiet. As mentioned the engine shuddered when shutting of (a diesel thing ) Finally I started getting error code 401 that wouold clear it's self every week or so. Then when the weather got cold it was every day or so. Finally I took it in and last week they replaced both the FCV and EGR valves It took over a day to do it. Seat of the pants dyno test is it runs better when the cel is not on. If you've got any warranty left have it replaced then you might want to remove the butterfly as mentioned

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)

Definately stripped gears on the FCV...replaced one on a friends KJ couple of months ago and took the old one apart: main gear missing 4 teeth...

You can leave it or replace it. If the noise bothers you much you can pull the connector. It will throw a cel at ya then.

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Cherokee 2,5 CRD: sold - Wrangler TJ 2.5: gone - Touareg V10 TDI: new toy

Solo Liberty en Español: Jeepliberty.es

They make a squealing noise even when they work properly.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.