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Had to turn in the T&C [five day dcx limit (even with extended warranty) is over]. Better half picked me up after work with our Malibu LT. The poor crd is left up on the rack waiting.
Week 6 CRD held hostage. My new Chrysler sample loaner is a Liberty gasser 2WD. 300 miles and no check engine light.
Problems to date:
*Repace Steering Clock Sensor Spring under recall for ESP system
*Pinion Seal Leak...Replaced seal under warranty.
*Test and replace Optima Battery under recall.
*Reflash Body Control Module
I have 15k miles on the Jeep Liberty CRD that I bought in February '06...yes I drive it often on long trips, Build Date 08/05. Use Castrol Syntec 5w-50 with Purolator PureOne PL25230 at 6k mile intervals. Put a few ounces of Marvel Mystery Oil in the tank at every fill up. Will be switching to Mobil 1 Turbo Diesel Truck 5W-40 or Shell ROTELLA T Synthetic 5W-40 at next oil change.
Have a safe and happy 4th!
1000 miles and no problems
So, we are now looking at a Gasser. You call can take pity on me when you drive by with the 25+ MPG. I can dream.
Signed.... New Diesel Liberty owner in 2010?
My 2006 Jeep Liberty Limited has a trip computer that gives the Avg. MPG. I have checked it doing calculations at fill ups, and it is right on. Fill up your vehicle jump on the highway, set the cruise control to 60/65 mph drive 60 miles down and 60 miles back and fill up the tank...then do the calculations...if you do not get better then 29 mpg without the AC running, you have something wrong with your CRD. You should get between 27 and 29 with the AC running. At 55 MPH you should see over 30 without the AC.
If you would like, I will video the Trip Computer and mail it to you so you can see for yourself that it is real!
Diesels work best with a light throtle foot. They love to operate just under the peak in the torque band, which is in the 60 to 65 mph zone in the Jeep Liberty CRD.
I can get 20 to 22 mpg in my 2005 F350 SRW Short Bed King Ranch Crew Cab 4x4 with the 6.0 Power stroke if I keep it under 65 mph. Once the turbo kicks in above 65 mph on the highway the fuel ecomnomy drops. It has 3.73 rears.
I believe alot of it has to do with driving styles...alot of the posters on here are used to driving gassers...getting the most efficiency from a diesel takes a different driving style and mentality...Life's Short...Take The Scenic Route and Drive Within The Torque Band! :P
Read my post again...what happened when my wife drove the vehicle for a week? It's all about driving style!
MY 2006 Jeep Liberty CRD Limited gets 31 to 32 mpg cruising on the highways at between 55 mph and 65mph in Pa without the AC on, and 27 to 29 mpg in Florida cruising the highways at between 70 and 75 mph w/ the AC on (72 mph at 2000 rpm). Combined city/highway is in the range of 24 to 27 mpg...worst I've had was 22.5 mpg when wife used it for a week while her 2005 Jeep Wrangler Rubicon was in for repairs doing all city driving...the Wrangler Rubicon only gets 13 to 14 mpg in her daily driving routine.
Now piss off! :mad:
As for the CRD, it is designed to run on ULSD (S15). In Europe, their fuel is S30.
As to a 2008 model, the law states that you must run ULSD in a any diesel built for MY 2007 or newer.
Last night, I heard the ad on the radio. As I recall, it was done by the German CEO of DCX and touched on what DCX was doing for the environment. He mentioned the Liberty diesel and several other diesels that will be coming here in the fall and in the spring. If I hear it again or see it, I will add more information.
Diesels in general require different style of driving as maximum torque arrives much sooner than with a gasser. Those posters who are getting low FE are probably driving their CRDs like gassers.
I used 0w40 too long. Did you warn us last year during oil wars and I forgot? I went with new stuff as a fuel additive. If you've been reading then you remember my not additives again tired old dave post.
I came across my very old little couple ounce can with nozzle in the garage some time back and said - what the heck. Used redline/valvoline syn additives. Bought a new bottle of mmo because of the modern combustion chamber and ethanol etc. The malibu 3.5 v6 just purrs and now it smoothly purrs and better half noticed and asked why with ethanol is ours running so smoothly. Just put some in the diesel, if that is what we get when we buy diesel here.
Found the aircraft engine info on the net weeks ago after the google. And I have bottles of oil of wintergreen that I bought years ago before I found out it wasn't a superficial thing and it wouldn't help but only make the t-shirt smell.
I have all diesels now, a 95 Ford 7.3 auto crew cab DRW with 187,000 plus miles, ii- 12 mpg towing 9,000 lb gooseneck and a 2006 6.6 Kodiak 5500 motor home with 9,000 plus miles, 7-8 towing 12,500 lb two car tag stacker.
My CRD had only two problems, one with trans wire harness burnt from exhaust and the other a glow plug with timing module. It has 13,000 miles and gets no lower than 19 mpg and no higher than 23 usually 22 mpg.
Power is good and the engine runs smooth. Trans shifts right with 5th gear at around 52 mph and lockup dropping about 600 rpm at around 59.I use Shell 5-40. I have the Sport so I don't have the trip computer, I calculate the old fashion way.
65 mph=1800 rpm
Computer shows no codes=EdoN
Hope this helps.
I believe that was after the goodyear removal but before aero-turbine and airbox mod with thinner air filter. I do not overpressure the tires. Only on good diesel can we get the evic to climb to 27-28 (evic good enough-tired of calculated disappointments). Stopped at a shell recently and watched my around town drop to just above 18mpg. Back to the walmart pump run by murphy and back up above 20 around town before now sitting in the shop.
Was 0w40 good enough for our bearings etc and is some of it the 5w50 oil used for break-in.
Also you can now ask DCX questions by going to askDr.Z.com. I asked his what he was going to do for all us "test market" people who feel DCX let us down. I bet Dr. Z don't answer......anyone care to bet?
Here Diesel is $2.899 gas is $2.839 holidays are great for the fuel stations.
Farout.
I believe our specific ECU (engine) combined with the PCM (transmission) are causing this because other manufacturers don't have such variations.
I've never heard of diesel Nissan, Toyota, Suzuki or Mitsubishi 4x4 owners complain about this instability :confuse:
All I know is that my colleagues are getting even mileage practically all year round depending upon traffic conditions. The youngest I refer to has been doing the same travel for more than 10 years already!
Could it be that our engine + transmission are not well matched to control fuel consumption when the converter is open compared to what the other manufacturers do?
thanks,
PrairieGirl
We are going to test drive trailblazer/tahoe/await new hyundai seen here at edmunds. In our minds this crd is history but we have never taken two hits on a new vehicle.
Dr. Z can keep making his commercials, his car failed the side impact and Impala passed.
last week I order a CM filter that cost me about $160.00 with a few replacement cartrages. I install it saturday and on sunday I went to my mother in law. well the computer read 28 mph all the way. The CM filter said that the flow of oil to the engine is very high, I notice tha the engine run much looser maybe oil flow is better. well I want you guy to know what happen to my CRD. welcome all comments.....Happy forth.......
Dr. Z can keep making his commercials, his car failed the side impact and Impala passed.
Remove the side impact air bags and see how the Impala does in the tests. As far as I know DCX does offer side impact bags as an option, that should be a standard feature IMO. Add those side impact bags and re-run the tests, those DC cars will pass with flying colors. Cars that did not have side impact bags fared worse than those that did.
As to running with GM, I would be careful. The Trailblazer has a "rubber" frame and flexes more than the Liberty or GC. The Tahoe is a proven design with totally numb steering and is a "pig" at the pump in spite of the cylinder deactivation feature.
Farout
Thank you very much Grubbs Jeep in Bedford, Texas. Just got the crd back. Repeating an observation posted somewhere else, with new ball joints the crd is now level again and not nosedown. Got new shocks for the coil over shock (strut to some) not at our expense. Got a new tcm but can't report on any results yet. Paid for my request to have the tranny filters and fluid changed.
Talked to the mechanic about why he wouldn't let me drive the crd until the lbj's come in and he was shocked after testing them. The look on his face turned serious. He said his wife drives a liberty and has mileage and that is his first thing to check at home. I reminded him that these fail at ~ 10 mph, turning, braking. Usually people report - just turned into my parking space at school after a 300 mile trip, wife just backed out of the driveway etc.
On the highway I usually get around 25 mpg, in the city the best I get is 18 mpg, typically it is closer to 15 mpg.
I have just over 5,000 miles on my Liberty.
"The CRD owners with the oil in the air cooler tubes may have this problem and it also causes poor fuel economy."
I foolishly used the dcx mobil 1 0w40. At 18k miles before moving up to 5w40, I removed my ccv and found only one spot possibly the result of one drop of sooty oil in the sump part of the ccv. I always thought that maybe the drain hole wasn't completely through the head and therefore no liquid was going back into the head.
Tonight, I removed the ccv again to check the depth of the hole in the sump. What I found was an oily hole, not soot covered, but the o-rings were covered in sooty oil and the plastic .065 trimmer line went down at least two inches. Heavier the oil the better the ccv works (or less volatile the oil).
Has anyone who moved from 0w40 to 5w40 to 15w40 ever checked the efficiency of the ccv. I try to believe someone's observation and/or assertions. I will also believe that vm said to use 5w40 and 10w40.
Diesel Farmer, before you go to thinner oil would you please examine your ccv and ccv sump and the cleanliness of your cac hoses and tell us. Can we assume that you have the original tires and working ccv and no mods?
It looks like a lawn mower fuel filter.
Just met a mature female texas driver who's personal one-time best is 25mpg. The crd is 26 or 27 highway mpg rated. Good diesel and opened up exhaust can give 30mpg. Overinflating the ST balloon tires can get one over 30 on cruise and driving the diesel.
I am really serious. Are you using 0w40 mobil 1? Is your ccv factory? Are you playing by all the rules. If yes, so much the better for an auto autopsy. Please contact jeep engineering or email Dr. Z. and offer up your good crd in a sacrifice for the rest of us.
I find this CRD gets its best performance after pushing it hard. "Blowing it's nose" I use 5w40 and have the original CCV. I also find the best MPG at 55 to 60 MPH. Isn't it normal for MPG's to decrease by about 10% for every 5 or so MPH above 60. When on the highway try to stay at a constant speed. Drive it like a diesel, don't floor it. Let the turbo build your torque. And driving closer to 55 saves more then just lives. The first one from stop light to stop light is normally the first one at the filling station.
No problems! LK
It's too bad we couldn't get a video made up on how great this vehicle is, and send it to DCX marketing headquarters.
You know make it a 5 minute deal ,anda little comical , but still get the idea that we love the liberty CRD.
Maybe throw line in there like ,
"hey ! that thing got a diesel in it ??" or something.
Sending a copy to the news station may help get the idea across to them,that they may re-consider.
Yesterday on cruise highway 65mph a/c on - 24mpg on a short test. Waiting for first road trip for a real test and some non-texas diesel. Funny since the last reflash, using o/d off tranny started to act funny. Yesterday with all the work done, o/d off local driving evic started to pick up tenths of a mpg. However, it then started the infamous shudder approaching 50 mph that ours never had. O/D will always be left on. Punching it for the need to maneuver, the mph did advance more than before but still not right - no shift down maybe just tc unlock and very slow rise in mph. I still suspect the tc. I didn't ask about the quality of the tranny. All the parts must have come in monday am and all work was done that late am and early afternoon.