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 Post subject: Do I need to clean my intake manifold?
PostPosted: Tue Mar 15, 2011 3:39 am 
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Joined: Tue Feb 22, 2011 4:54 pm
Posts: 23
Location: Gurnee/Lake Villa, IL
Greetings exalted Gurus,

I’m still working on completing the Sam’s Noob Guide for my 06 Liberty CRD.

1) Replaced Air Filter to K&N (aware of bad press). Will buy a Pro Guard 7 air filter very soon.
2) Fuel filter has been replaced in the last 10K miles. I plan on installing a Raycor 245 Fuel filter similar to Eurekaboy’s
setup (w/fuel press gauge & omega temp sensor) when the time comes.
3) Replaced Map Sensor with a new one 2 weeks ago. Huge improvement in drivability, I doubt it has been
cleaned/replaced since the truck was new. Just passed 60K miles this morning. Kept the old one to clean and re-use
when the time comes.
4) I plan on replacing the boost hoses when I install the GDE stage 2 turbo kit.

Other mods completed or in-progress.
1) Unplugged MAF (ORM Mod) when I replaced the MAP sensor.
2) In the process of building a DIY Provent-type CCV Filter.
Not sure if I missed it but I don’t know what to connect the braided hose to from the output of
the oil catch can.

3) Have a new EGR Valve to install, the CEL light came on last week with the requisite code. Just got the part 2 days
ago.

I’m wondering…
Since the MAP/Boost sensor was so nasty when I replaced it, is the intake manifold on the engine that disgusting as well?

Am I correct in thinking the MAP sensor probe is monitoring the intake manifold pressure?

I looked up the cylinder head/intake manifold procedure on ALLDATA and it was a very long and painful looking procedure, just to clean the gunk out of the intake system. Is it worth it to pull off the head and clean it or does that extra yuck get pulled into the engine and burned up a-la diesel combustion?

Any comments/suggestions are welcome.

Thanks.
John :JEEPIN:

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06 Dk Khaki KJ Limited CRD
Mods:Roof Rack, Offroad Lights, 3" Cat back, Aero Muffler, JBA 2 1/2" Lift, Moabs/BFG Rugged terrain TA's, DIY CCV, GDE Hot Tune, Samcos, Suncoast TC & shift kit.
Coming Soon
JCR Sliders, DIY Bumper Mod, Front & Trans Skid Plates, OBD2 monitor, Mall rated sticker and Camo Jeep Hat


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 Post subject: Re: Do I need to clean my intake manifold?
PostPosted: Tue Mar 15, 2011 7:07 am 
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Joined: Wed May 24, 2006 6:52 am
Posts: 3442
Location: Columbus, Ohio. USA
From what I understand the build up will start just past the elbow the FCV is mounted to . So you only need to remove the FCV and elbow. I've cleaned a TDI ALH engine's manifold twice and what I saw there was a snow fence type thing where it started building up and was the worst just behind the anti shudder valve.

There was a post not too long ago where a person cleaned his and discribed the procedure. Maybe he'll see your post and reply :SOMBRERO:

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 Post subject: Re: Do I need to clean my intake manifold?
PostPosted: Tue Mar 15, 2011 8:23 am 
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I'm not sure how much curd is in the intake but I know there is a bunch in the elbow, I had to remove it when I did the glow plugs. It was crazy how soot was stuck to that thing, makes you think the intake is full of it too.

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-05 Dark Khaki Limited CRD. GDE ECO tune. In-tank lift pump, Transgo doo doo kit, B&M trans cooler, replaced trans solenoid pack and filters, Newer Michelin tires, Timing belt with all related parts replaced at 110,000miles.


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 Post subject: Re: Do I need to clean my intake manifold?
PostPosted: Fri Mar 18, 2011 8:03 pm 
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Joined: Wed Mar 09, 2011 11:56 pm
Posts: 24
Location: 9911 airport way Snohomish, WA 98290
What I am curious of is has anyone had any success in removing the curd from the intake. Not much room in there to get any tool in.

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2005 Liberty 2.8L CRD
BD crankcase filter, Platinum Fass pump, MBRP 2.5 free flow exhaust, InMotion stageII, Transgo, Edge CS. 115K and going strong.

www.dynamicdiesel.com


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