So am replacing my cylinder head, which started as a head gasket, today have started on the cleaning ready for re-assembly..

WOW.. how much crap is in the inlet !

Holy crap! Wish we could take the intake off as easily as you can on the TDI to clean it. Integrating the intake and the head is such a stupid design.

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OME 2790/2948 Rancho all around
JBA strut plates with clevis lift
2 extra rear upper isolators and one extra lower
Front sits 23
Rear sits 22 3/4
265 75 16 Maxxis Big Horn MT
GDE Hot Tune
Bumper trimming up front

I cleaned mine when I did the rockers/lifters.

I took the EGR elbow off 20k later to check it and no build up at all.

I also got the GDE tune when I did Rockers/Lifters, I would have to guess this is the reason, because mine were horrible.

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings

Is there a place that just sells the intake? Or is it possible to clean it thoroughly enough?

I bet a hot tank at a machine shop would nuke that crud out of there.....

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2005 CRD
ORM / EHM
Cummins lift pump
RRO 3" lift

soak it in diesel overnight. It worked for me

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2006 Liberty CRD 275K, JBA 2.5 with Fox Shocks, GDE Turbo Kit, GDE TCM Tune, Suncoast TC, OEM fuel filter housing converted to fit Caterpillar Fuel Filter 1R-0749, OEM themostat housing modified to accept Hemi 203 F thermostat.

You can clean it in just a few minutes with some gasoline or intake cleaner. I've cleaned out 3 and watched another get cleaned out while I did the water pump and replaced the rockers/lifters.

I would like to try a parts cleaner because it's just less messy, but yeah it's not hard or bad to clean.

You wouldn't want to buy another intake, there's nothing wrong with this one at all, it's just dirty, thanks EGR.

This is the soot and particulate that gets into your oil, fun stuff.

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings

Yea, do what Hexus said, gasoline works like a charm. Get also a bottle brush and clean the holes/air passages while gasoline is in it. Cap the map hole with something so gasoline won't go through when you soak the valve cover.

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2005 kj CRD, samco, suncoast tc, provent, Kennedy lift pump, GDE ECO full torque, 2nd gen filter head, 245/70/16 a/t tires, mopar light bar, fumoto oil valve, OEM Skid Plates, ARB Front bumper and HD OME, tru cool LPD47391 40k GVW tranny cooler (stock cooler delete), FF Dynamics e-fan and shroud, rocker arms replaced, HDS2 190F thermostat.

Wow that's bad. When I removed mine it was relatively clean with really just oil coating. Been running with the MAF unplugged and later GDE tune which I'm sure made the difference.

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'97 Wrangler Sahara with some mods.

'06 Liberty CRD Limited GDE Hot Tune, Lift Pump

Head Gasket and Timing Belt Pics

How many miles on your rig? Do you have a tune, segr or run maf unplugged? Just curious what state my intake is in. Thanks.

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2006 Jeep Liberty CRD Limited
Gen2 Fuel Head - Magnaflow Exhaust - Ram transmission swap - In-Tank Lift Pump
Moab Wheels - 245/75/R16 LR E Cooper Discoverer AT3 Tires - OME Lift 790/90009 948/60069 - Etecno Glow Plugs - V6 Airbox
RUNNING B100
Pic of my Jeep!

Only done 76k, no mods at all...

And that is why - no mods and 76k miles of nearly continuous EGR usage.

The three that I have seen the inside of the intake elbow on in the last few days, have all been less borked than that, but they also all had either a provent or an EHM or a GDE... Or a combination of the above.

EGR = dirt.
CCV = oil.

What happens when you mix dirt and oil? You get mudpies all around your intake. Yum.

Best of luck cleaning it, the suggestions to soak in diesel are probably the best ones. You don't want to use gasoline to soak, if the cams are still in the head. That could thin the grease / oil in the cam bearings, diesel would be closer to the oil that they need and more "oily" than gasoline, yet still do the job of thinning out that sludge.

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Proud supporting vendor of LOST Jeeps
TRAVELING CRD TECH. I come to you!
Need help? Just ask! I've taken it apart more than most.
Email jeep [at] maincomputer [dot] com - BOARD MESSAGING IS BROKEN
Over 225 CRDs currently driving with my valves, timing belt, rockers, or ARP Studs.
Bad noises = REALLY bad things.

Thanks for the tips! You guys that have cleaned your intake noticed any increase in performance?