Finley got around to removing the flow plate out of the FCV valve and hopefully this will solve the P0299 code that showed up occasionally with the EGR blocked off. While I had the FCV out I removed and plugged the EGR cooler lines/hoses as some others on here have done. So far no more P0299 codes have shown up.
I had the intake side boost hose off and tried everything I had in the shop to clean it out and nothing seemed to work very well. I tried carb cleaner, dawn soap, purple power degreaser, hot water, engine degreaser, etc. Has anyone found something that will really clean this gunk out of hoses and intercooler?
I plan to do the timing belt job next week and I was going to clean everything out good while i have them off? That gunk is almost impossible to even wash off your hands using gojoe...

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

Gasoline works great, not sure how bad is for the hoses though. If you're fast, could be fine.

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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.

I was wondering the same thing, only not about the hoses. It's the intake itself. I've been able to see inside one off of my broken engine and it don't look good. My new engine which hasn't been installed is caked very thick
In the intake/valve cover. I was wondering if there are any solutions for cleaning it with out removing it.


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05 Stone White Sport Auto/Selectrac
2.5" Rockfather Lift
2.5" Spidertrax Widening Kit
245 75 R16 BFG All Terrains
ARB Bull Bar W/9000LBS Winch
Multiband Ham Radio antenna W/icom Radio
ORM, EHM, Aftermarket Hoses
K&N Replacement Air filter
Sat Radio but doesn't work in Hawaii...

Coming Soon: Roof Rack, Seat Covers, Mud Mats

The service adviser at the local dealer once offered me an intake manifold cleaning service, I think it was around $125. I don't have any idea how it was supposed to work or if it would even work; I did not take him up on it.

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2005 Liberty Limited CRD; Air Filter Monitor; Samco Hoses; GDE HOT Tune; RL037142AA TC; KJ Interior Rack from All J Products; JBA Adjust-a-strut lift and A-Arms; 245/75R16 Firestone Destination ATs on Moabs; ARB Bumper; ASFIR Skids; FS-2500 Bypass Filter; ARP studs.
2016 Grand Cherokee Overland CRD.

I can't imagine trying to clean the intake ports with the intake/rocker cover in place.
You would risk getting loosened sludge into the intake valves.
With the intake cover removed, thermorex's procedure of filling up the intake ports with gasoline and then scrubbing with a bottle brush after a few hours works well.
viewtopic.php?f=98&t=75479

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TWO Identical 2005 Liberty Sport CRDS
#1 CRD, 174,000 miles. Eco tune, Samco hoses. Mobil1 0-40w used since day one
#2 CRD 143,000 miles. Bought used (unknown history) with 100,000 miles. Samco hoses.
Eco tune, new rockers, and 5 volt glow plugs installed at 124,000 miles

I soaked mine in gasoline when I had it out and scrubbed it, then followed up with carb cleaner.
It was a mess.

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Grid power- the one true essential

2005 Liberty CRD- ARP studs, Fumoto, Hayden FC, inline Tstat, ETechno 7v GP, Platinum P1, in-tank lift pump.
1983 Volvo D24T
1981 Volvo D24
Dodge Cummins TD
Case 580B
Mitsubishi MT180 diesel
Kubota BX25 diesel

You'll need to take valve cover apart from the head, it is impossible to clean it while on the engine and even if it would be, you don't want that stuff getting all over the cylinder head and valves.

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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.

DO NOT, I repeat, DO NOT spray ANYTHING into the intake on a diesel, especially these diesels or VW diesels. You WILL destroy piston rings, jump timing, etc. due to hydrolocking, even if minor hydrolocking. You may not even know anything is wrong until it is too late. Seen it many times on smaller diesel engines. I've rebuilt quite a few where they were hydrolocked due to a puddle, due to the use of starting fluid, carb and choke cleaner, or seafoam. Again, nothing should be put into the intake to clean it, or even help start it. The only way to clean the intake is to remove it, which is a royal PITA on these as we know. Disable the EGR early, and the trouble will gunk will be minimal.

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Mike Rausch
Bear, Delaware
2006 Liberty Sport CRD 253K