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Jeep Liberty Diesel EGR Problems

114 messages,  Last post on Jan 24, 2010 at 9:00 PM

You are in the Jeep Liberty and Jeep Liberty Diesel Forum. Your Hosts are steve_ & tidester

What is this discussion about? Jeep Liberty, Diesel, SUV


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#53 of 114
Re: Minimal Issues [caribou1] by winter2
Jan 14, 2007 (11:38 am)
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Replying to: caribou1 (Jan 14, 2007 3:03 am)

Caribou,
 
Thanks for the response. It is helpful.
 
- Reliability of a standard PCM technology.
 
I agree with your analysis here. About the only things that will make a controller fail is a nasty voltage surge, too much heat or immersion in water.
 
- Diesel fuel quality is the only criteria we can rely on for lubrification.
 
Big problem is getting good quality fuel that provides adequate lubrication properties while giving a good clean burn. I would love to use EU spec diesel in my CRD. As it is, finding ULSD in the metro Washington D.C. area has been a problem. Found it easily in southern Florida. Still need to add detergents and cetane improvers to the ULSD. Domestic diesel fuel additive packages are marginal at best.
 
Three days ago I stopped back at the local dealer where I purchased my Liberty. Their head diesel technician was telling me about the large amount of sludge found in the CCV system and EGR valve when he has to change them out. I blame a good part of that on the recommended oil, Mobil 1 0W-40, Daimler-Chrysler requires because it has such a high vaporization rate. Since you switched to the Shell Helix oil, has the amount of goo in the Provent decreased? Since switching to Amsoil 15W-40 and their "CJ" rated 5W-40, the aftercooler hoses are nearly free of any oily goo.
 

Winter, are you sure this is what you want to buy when you're far from home?

 
I have nearly 16K miles on my CRD at this time. Ask me in another 84K miles and I will be able to answer you. If you want an answer based on my own experience with the CRD to this point, I would buy again without hesitation. It has not been perfect, but nothing ever is. I can say with great certainty that I am through with gasoline powered vehicles. They are so totally gutless.
#54 of 114
Re: Minimal Issues [winter2] by caribou1
Jan 14, 2007 (12:07 pm)
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Replying to: winter2 (Jan 14, 2007 11:38 am)

Winter,
I bought the "PROVENT" CCV filter but I have not installed it because my engine doesn't have all the sensors yours has.
 
I have a basic turbo with a pressure driven wastegate.
 
My four main engine sensors are:
- one to measure the timing (start of injection),
- one to measure the battery temperature,
- one to measure the over pressure on the intake manifold,
- one to measure the fuel pressure on the common rail.
 
I use Rotella Helix 5W-40 because it matches our local weather and it's easy to find. I can buy it in department stores
#55 of 114
Re: Minimal Issues [winter2] by farout
Jan 14, 2007 (2:00 pm)
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Replying to: winter2 (Jan 14, 2007 11:38 am)

winter2: I was under the impression that the Fed. EPA required all stations in the US to have the change over by Oct. 15, 06. There are a few stations that have not put on the new sticker on the pump because they have not pumped the required numver of gallons of diesel to the point where they can put the sicker on. Perhaps that may be the reason DC? I don't think the fuel quality is too much of a problem here that I am aware of.
   PBS has a program on "Willy-Bio" As Willy Nelson is involved with others that are producing B-100 from cotton seed oil. From there is goes to a place wich mixes it to sell to stations. Most of the big rigs that used B-20 seemed to be pleased, not by the preformance, but because of the dependance upon foriegn oil is less. I did use B-20 and noticed a loss of fuel mileage and rougher ideling, not a lot but enough to notice. I would use up to B-10 IFthere was a station that carried Bio fuel with in my area. I do agree thatfor a 2.8 L 4 cyclender engine this has the torque to move quick, and the economy that is like that of a compact car.
   My issues are not with the price to maintain the CRD or even the recalls or re-flashes. I am most upset that that when we have a problem few know how to take care of the problem. The replace and elimanate, trial by error method is sorta ok as long as it does not require so much time and the miles it puts on with me paying for the fuel to go back and forth to get the issue resolved. One problem took 5 trips before the problem was resolved.
   Right now everything is covered by 1 to 2 inches of solid ice, here. I doubt anyone on our hill can move, unless they have studs in their tires. So our fuel is lasting much longer than normal, it is now 27 F here, we expecting 4 F tommrow. I just might try starting the
"green Beast" tommrow to see how it does without the block heater on.
 
farout
#56 of 114
Re: Minimal Issues [farout] by winter2
Jan 14, 2007 (2:14 pm)
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Replying to: farout (Jan 14, 2007 2:00 pm)

Farout,
 
I have tried to start my CRD at +9 F sans block heater and it started just fine on the first try. Rather noisy though but that is typical for a diesel.
 
I have a better appreciation for your dilemma, namely finding competent service and competent technicians. So far I have been lucky and do have a good service technician who is pretty smart. What I have learned is that when any manufacturer brings a whole new design on line, that there are issues in terms of repairing it right the first time. Even the vaunted Toyota and Honda owners suffer from the same malady with totally new systems.
 
Have tried as high as B20 and have experienced no issues in terms of performance or altered FE. Ran quieter though and had less vibration. There are no local stations that sell biodiesel. Closest on is about 25 miles north of here and they have B5. Have used that a few times and the CRD runs fine on that.
 
As to the USLD issue, EPA does not require all stations to carry ULSD. Up to 20% of diesel fuel can still be S500. I believe that by 2010, all diesel must be S15.
 
Enjoy your ice storm. Hope you do not have a power outage.
#57 of 114
Re: Minimal Issues [winter2] by farout
Jan 15, 2007 (3:09 pm)
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Replying to: winter2 (Jan 14, 2007 2:14 pm)

winter2: The b-20 did run quieter, but ran rough. If the quality of the ULSD is a problem or if 20% of the stations still have the old diesel and add a b-20 old fuel this may be the reason the b-20 responded as it did.
   Our Green Beast is sealed in one and a half inch of ice. Now as the snow has started up, with ice and snow it does have a rather airodynamic look. The windshield is sloped from the top of the windshield to the front top of the grill is sloped and looks real cool! We can't even open the doors. We have not lost any power, but close to 100,000 home are with out electric and water, with little hope of reconnections until Wed. or Thurs. However our road up to our home has more than 2" of ice and only a fool would attempt going up or down. Missouri is a neat state because we get a wide varity, and we love green all over the place. We lived Phoenix and we hated the one hundred twenty + degrees, and the humid summers. We love it here. This state is a very good place to retire.
 
farout
#58 of 114
Re: Minimal Issues [farout] by caribou1
Jan 16, 2007 (1:15 am)
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Replying to: farout (Jan 15, 2007 3:09 pm)

Farout, I saw on TV the damages caused by the ice storm where you live. Montreal also had a very bad one a few years ago
When you have to drive downhill on an icy road, remember that the ABS has a strange behavior: when you use the brakes, the wheels block easily and the ABS loosens the brakes to let the tires grip again. During the time given to resume adherence, the transmission pulls the truck again. So you cannot stop the truck going downhill while the transmission is engaged. The ABS will stop you safely when you are in neutral (going down an icy slope of course).
 
Last but not least: forget the 4WD Part-Time on ice. This truck has a short wheelbase and rapidly slides sideways. Once it starts to get out of hand either you stop sliding naturally, either you engage the 4WD Full-Time and take control after a few "irrational trajectories". Try it once and you can repeat the recovery sequence fairly easily. It's quite pleasant to know how to recover a safe drive.
#59 of 114
Re: Minimal Issues [caribou1] by farout
Jan 16, 2007 (11:40 am)
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Replying to: caribou1 (Jan 16, 2007 1:15 am)

caribou1: Your advice is very much appreciated, thank you. With the CRD I have never used the part-time yet, we leave it in full-time on our dirt/rock/gravel/ roads. On pavement we take it out of full-time, unless it's needed.
   Last night it got down to -25C. Notice I used the C temp for you, I thought you might like that. We have 2" of ice covered with 1" of packed snow. My wife and I have been iced in here from last Thurs. night, and until the ice gets soggy we are not moving. Ice is not something I intend to deal with on the very steep hill we live on the top of. The ice- cycles on the eves of the house are mostly 18" long.
   The Green Beast is frozen solid and doors and hood don't even come close to wanting to budge open. I am glad we are retired because there is no way anyone beyond our our home down the road are going any place. Gas generators are at a huge demand. The home improvement chain stores are issuing numbers to people and as the generators come in by the truck load. Most generators sell for $1,295.00 Finding gasoline has been a problem in Springfield MO, and several other places. Because the electricity being out, along with some houses that just can't keep enough heat has had the Red Cross, and Salvation Army have opened many places so people can be fed and sleep and kept warm. I have never seen so many people who really needed to be in these centers. I think on the Lake of the Ozarks there are about 10 to 15 such places. We have a Waterford Wood Stove ( made in Ireland) that we use for heat. This we can also cook on if we needed to. We designed our home to be so if we got stranded we could be fine for several weeks if we had to. It really feels good to be independent and self reliant. Has this winter been bad for you?
 
Farout
#60 of 114
Re: Minimal Issues [farout] by steve_ HOST
Jan 16, 2007 (3:57 pm)
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Replying to: farout (Jan 16, 2007 11:40 am)

Maybe you'd like to move to Portland?
 
King5 video
#61 of 114
Re: Minimal Issues [farout] by nescosmo
Jan 16, 2007 (6:13 pm)
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Replying to: farout (Jan 16, 2007 11:40 am)

Farout... Must be something to see the snow untouched, here in florida has been very hot A/C run all day today, is very hot for the winter. Is your CRD doing as it should after the F37, do you think that gas mileage is doing ok, my seems to me that is not doing so good, maybe is my imagination but maybe not.
 
Nescosmo.
#62 of 114
Re: Minimal Issues [winter2] by mdamick
Jan 16, 2007 (8:19 pm)
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Replying to: winter2 (Jan 14, 2007 11:38 am)

I had mine in for the F37 and replacement of the EGR flow control valve. It has 61000 miles on it.
The tech pulled out a lot of "gunk". They blamed it on the Rotella 5W40 and PowerService.
I am blaming it on the CCV system design.
I wonder if it will plug up the intake manifold to the point where it won't run right, I remember an earlier post about VW having that problem.
Any thoughts?

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