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Unread 02-26-2009, 08:10 AM   #1
Liberty_Bell
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2005 KJ Liberty 
 
Join Date: Sep 2008
Location: tennessee
Posts: 17
Persistent Crd Problem

I own a 05 CRD with 55K. I've owned it 5 months. It seems to be all stock. It's been detuned with the latest JEEP programing. Here's my problems.

It ran fine til cold weather hit, then all hell broke loose. It started blowing off the intercooler hoses, busted one of the hoses. Then it started losing power when I would get into the throttle, climbing long hills on the interstate, or just to feel the diesel power occationally LOL. Sometimes it even die's on climbs. I turn off the ignition and restart and I'm good til the next hill.

When I floor it on takeoff, It smokes(black)like the shuttle is blasting off, then die's.

The funny thing is, the colder the weather, the easier I lose turbo boost. It feels like the damper in the throttle body suddenly closes, then creates pressure from the turbo to blow off or bust the intercooler hoses.

If it's under 30 degrees, you can't drive this thing, it die's with little throttle. The warmer the weather the longer I can stay in the throttle.

I took it to the JEEP dealer a few weeks ago, they replaced the ERG valve, it ran fine for 2 weeks in warm weather, it cools off and now the same thing.

It's also starting to die sometimes when I first put it in gear, I restart and it's fine.

I really love it when it's running right and I would like to salvage my CRD experience. From what I gather, this is a common problem? But I can't really find the fix.


Last edited by Liberty_Bell; 03-16-2009 at 08:39 PM.. Reason: misspell
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Unread 02-26-2009, 11:16 AM   #2
N8FIS
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Fuel Filters?
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Unread 02-26-2009, 01:44 PM   #3
merlinTec
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Yep that's where I would start looking for a melted plug on the fuel filter housing letting air into the fuel.
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Unread 03-09-2009, 07:01 PM   #4
k6uaw
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Black smoke from a diesel generally indicates serious lack of air. start with checking the air filter. maybe just remove the filter and go for a drive. if that fixes it get a new filter or clean it its a K&N filter. if thats not the problem then check the rest of the airflow path.
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Unread 03-09-2009, 10:37 PM   #5
gmctd
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Correct - black smoke is soot is unburned fuel is insufficient air flow - first check the air filter for damp, dirty, or both, incl having been damp but now dry - replace
Check for dirty MAF sensor, 4-wires, while you're in the airbox

Prolly time for new Boost hoses, as the oems are likely too oil-soaked for the clamps to hold - might try R&R'ing them both for a good cleaning with hot soapy water, rinse, dry

Check fuel filter, could be contaminated from winter season, or just accumulated mileage

Check and clean the MAP sensor, mounted in the intake manifold just beneath the main wiring-harness tray where it crosses the rear-half of the engine - 4-wires, one small bolt holding it in
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96 Dodge 3500 CTD, unseemly unstock
If it's a Diesel thing, I do understand....
'05 CRD; INMOTION ST-II; EDGE Trail; Pricol Boost, EGT, Rail Press, Trans Temp; SEGR; Provent; Magnaflow;
2.5" Daystar f, OME r; Al's arms, Moogs; Ranchos; Rubicons, 2.55 Gy's; Suncoast T\C, Transgo
'06 Cummins lift pump module, Fuel Manager\Filter, Filterminder
Four in a row really makes it go
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Unread 03-11-2009, 11:41 AM   #6
SliderCRD
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my CRD has sputtered when trying to drive it approx 3-4 times since I bought it new. I pull over and restart it and problem solved. Has been long periods between this happening each time...at least 6 mos
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Unread 03-11-2009, 02:48 PM   #7
Liberty_Bell
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Warm weather joys

OK guys, thanks for the input. I will try the things that you have suggested. Since I started the thread it has been warm here in East Tennessee and the darn thing has ran like a new one. It's quite possible that the fuel filter is the culprit seeing that cold affects it more than anything, and the air filter is fairly new. The fuel filter is a whopping $42 plus tax. I will check and clean the MAP as well, but probably won't get results unless we get another cold snap(30 degrees or colder)

Last edited by Liberty_Bell; 03-16-2009 at 08:35 PM.. Reason: misspell
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Unread 03-11-2009, 06:56 PM   #8
gmctd
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Check the quote\unquote fairly new air filter, anyway - if it is or has been damp, it is restricted - Diesel engines smoke with restricted intake

Also check for rodent motel - furry critters'n'birds find an engine-heated airbox very accomodating in winter climes
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96 Dodge 3500 CTD, unseemly unstock
If it's a Diesel thing, I do understand....
'05 CRD; INMOTION ST-II; EDGE Trail; Pricol Boost, EGT, Rail Press, Trans Temp; SEGR; Provent; Magnaflow;
2.5" Daystar f, OME r; Al's arms, Moogs; Ranchos; Rubicons, 2.55 Gy's; Suncoast T\C, Transgo
'06 Cummins lift pump module, Fuel Manager\Filter, Filterminder
Four in a row really makes it go
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Unread 03-12-2009, 10:07 AM   #9
Liberty_Bell
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Location: tennessee
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I orderd a new fuel filter today, will have it installed Saturday, will give an update soon. I loosened the water sensor on the existing filter and pumped it about 20 times or so to see if this helps, someone told me to try that as well. Is there another fuel filter anywhere near the tank? Like a primary filter?
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Unread 03-12-2009, 10:18 AM   #10
gmctd
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None - watery fuel will black smoke, as the H20 extinguishes the combustion flame - contaminated fuel will black smoke, or will cause fuel starvation as fuel filter plugs up - wet air filter will black smoke, resulting from reduced air\fuel mixture - split Boost hoses will black smoke resulting from reduced air\fuel mixture
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96 Dodge 3500 CTD, unseemly unstock
If it's a Diesel thing, I do understand....
'05 CRD; INMOTION ST-II; EDGE Trail; Pricol Boost, EGT, Rail Press, Trans Temp; SEGR; Provent; Magnaflow;
2.5" Daystar f, OME r; Al's arms, Moogs; Ranchos; Rubicons, 2.55 Gy's; Suncoast T\C, Transgo
'06 Cummins lift pump module, Fuel Manager\Filter, Filterminder
Four in a row really makes it go
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Unread 03-14-2009, 11:43 AM   #11
Liberty_Bell
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Join Date: Sep 2008
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Posts: 17
Crd Owners: Must Read - Persistant problem

I posted a thread recently titled PERSISTENT CRD PROBLEMS. I just wanted to tell you guys that a simple fuel filter change solved all these common problems that we seem to be having. I changed the fuel filter(a fairly easy 30 minute project)and all my symtoms have vanished. My CRD has 55k and I've been having these problems since 40K. Read the other thread and you can compare your troubles with mine. Perhaps this easy fix might work for you as well. I noticed much smoother operation and acceleration. No smoke, as this problem must have been sending false signals to the ECM. Test drove on long interstate climbs at full throttle and runs like new now. I hope this helps some of you guys that have been experiencing the same symtoms. Thank you guys for all your input : )
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Unread 03-15-2009, 10:05 PM   #12
Liberty_Bell
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Location: tennessee
Posts: 17
Fix

I changed the fuel filter, went on a 500 mile trip this weekend in 40 degree weather. Changing the fuel filter was my miracle cure for all these problems. Can stay in the throttle all I want now and no problems. Thanks for all the input.

Last edited by Liberty_Bell; 03-16-2009 at 08:37 PM.. Reason: add
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Unread 04-10-2009, 09:47 AM   #13
Liberty_Bell
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Join Date: Sep 2008
Location: tennessee
Posts: 17
Wrap Up

It's been almost a month now since I changed the fuel filter. This thing has ran like new. I never thought that a simple fuel filter change could make such a difference. The clogged filter was causing other problems, much like a snowball effect that was sending different types of codes to the ECM. I don't think that any of the fixes at the JEEP dealership was the actual cause of any of the codes; EGR Valve, MAP sensor, reprogramming, etc.... as none of these fixes helped in any way.

When starved for fuel the ECM obviously closed the throttle body damper, causing the sudden build of pressure from the turbo that would blow off or bust the intercooler hoses, causing several of the sensors to send a code.

I guess next up for me is to install a vent system/catch can for the turbo oiler. My intake looks a little nasty from the build up of oil from the turbo. Not extremely bad yet, but I wonder how much oil is in the intercooler.
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Unread 04-16-2009, 06:39 PM   #14
CRD_Joe
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Ive read there is some kind of CAT fuel filter upgrade to a 2 micron filter. Ive done the same upgrade to my TDI VW. Does anyone know of this upgrade?
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Unread 04-16-2009, 08:33 PM   #15
CATCRD
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Yes, the adapter for the Cat filters was made by lubricationspecialists.com, but it is out of production due to lack of demand. They may have a few left.
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