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Jeep Liberty Diesel Maintenance and Repair

332 messages,  Last post on Dec 07, 2009 at 8:47 PM

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#289 of 332 Re: diesel consumption is way up [msol] by dlmartin729 Sep 15, 2007 (7:05 am)
Replying to: msol (Apr 23, 2007 6:01 am) The lack of power, acceleration and decrease in mileage is directly related to a mod change by the dealers. Chrysler required this change because the torque was breaking too many torque converters. I was told by the dealership that they couldn't reverse the change. A week after the change my 2005 Liberty needed to be flat bedded out of my yard. My dealer paid for everything and after some heated talks I got them to make a few changes. These changes almost brought back some of the things I liked about the Liberty in the first place. Before the original change I was getting around 27mpg highway, after the initial chg it was around 20mpg and after the last change it was back up to 25mpg. I agree with the person that we were used as a test bed because my Liberty has been in the shop more than all the other cars I have ever owned together and multiplied by a factor of 2. 2005 CRD 60K miles Replies to this message: msol (Sep 18, 2007 12:29 pm) caribou1 (Sep 19, 2007 7:27 am) msol (Sep 19, 2007 9:10 am) and 1 more...
#290 of 332 Re: diesel consumption is way up [dlmartin729] by msol Sep 18, 2007 (12:29 pm)
Replying to: dlmartin729 (Sep 15, 2007 7:05 am) dlmartin thanks for the info   It is still puzzling to me, my gas consumption I thought got better after the last visit but it didn't. It is better but not how it used to be. It used to be 8L/100km and now it's 10.5L/100km and that is if I use Petro Canada gas station, any other gas station in Ontario will give me 13L/100km. I've changed the fuel filter recently and got new alternator(it went very quickly) but no change. It seems that the low sulphur is the issue in my case but I will look into the change you have made Replies to this message: caribou1 (Sep 19, 2007 7:27 am) msol (Sep 19, 2007 9:10 am) caribou1 (Sep 22, 2007 1:17 pm)
#291 of 332 Re: diesel consumption is way up [msol] by caribou1 Sep 19, 2007 (7:27 am)
Replying to: msol (Sep 18, 2007 12:29 pm) 10.5 is what I've been getting over the past 4 years. This is the typical fuel consumption of the 150 HP engine. When you had more power, you had shorter acceleration time to bring the vehicle to speed; this was good for mileage figures probably because the converter was less involved (% of time). Air temperature plays an important role; low sulfur diesel will also be a penalty; winterized fuel will add one more penalty. I noticed that when fuel doesn't smell bad, mileage decreases. Nowadays after filling the tank I can predict mileage by smelling the hand that held the hose. Replies to this message: msol (Sep 19, 2007 9:10 am) caribou1 (Sep 22, 2007 1:17 pm)
#292 of 332 Re: diesel consumption is way up [caribou1] by msol Sep 19, 2007 (9:10 am)
Replying to: caribou1 (Sep 19, 2007 7:27 am) I know the low sulphur diesel makes all the difference in my car. I found only one gas station that works for me and I try to stick with it but I think this car was meant for european diesel which is much cleaner. And I agree with you on the winterized fuel, I can see the difference on my car, didn't know about the smell... The bottom line is that in addition to all the repairs I had to do, I have to watch what diesel I put in it to get a good mileage. This car is a lot of work. Replies to this message: caribou1 (Sep 22, 2007 1:17 pm)
#293 of 332 Re: diesel consumption is way up [msol] by caribou1 Sep 22, 2007 (1:17 pm)
Replying to: msol (Sep 19, 2007 9:10 am) I agree with you it's a lot of worrying, work and money to keep it purring but it's the best of it's kind I've had and driven in 40 years! It's also true to say this engine was meant for Europe but Europeans buy more and more asian cars because they are fed up with the high sophistication and uncertainties of local manufacturers such as Bosch and other generic CPU manufacturers I still haven't the faint est clue about a replacement truck that can park in a tiny spot, carry 4 adults + luggage, have a real transfer case and get 5 star rating in a crash-test.
#294 of 332 code P0047 by wishfishmore Sep 25, 2007 (10:23 am)
Has any one had this code come up? its described as Turbo/Super boost control solenoid A circuit low any help with a cause or where to look would be appreciated   Greg
#295 of 332 CRD no more by cornbread1 Dec 15, 2007 (4:24 pm)
I a'm a hard core Mopar man so when Jeep came out with the 06 CRD I traded my 04 Liberty in. The CRD ran good for about 6 months then every thing went wrong. The Jeep lost all of its power and started missing. The dealership reset the CPU. It ran good for 3 months and did it again so they replaced the EGR valve. The Jeep did this over and over and over and they never could fix it. They replaced the CPU the fuel injectors the separator filter housing the wiring harness and other sensors. The CRD would run fine for a while then with no warning it would lose power. Sometimes it would lose power and miss and sometimes it would idle like normal but would not rev up. Every time they put it on their computer it said unknown code. The Dodge place worked on this for over a year and they finally gave up and they bought it back. I give them credit they stood behind their product. Replies to this message: caribou1 (Dec 17, 2007 4:11 am) cornbread1 (Dec 24, 2007 5:35 pm) caribou1 (Dec 26, 2007 10:29 am)
#296 of 332 Re: CRD no more [cornbread1] by caribou1 Dec 17, 2007 (4:11 am)
Replying to: cornbread1 (Dec 15, 2007 4:24 pm) I have the impression you are describing a throttle or boost pressure sensor problem. As long as the engine can idle (it then needs no boost, no throttle) it has "everything" to run. Did you buy another CRD? Replies to this message: cornbread1 (Dec 24, 2007 5:35 pm) caribou1 (Dec 26, 2007 10:29 am)
#297 of 332 Re: CRD no more [caribou1] by cornbread1 Dec 24, 2007 (5:35 pm)
Replying to: caribou1 (Dec 17, 2007 4:11 am) No I did not get a another CRD because they don't sell them in the US any more. Jeep told me that the 2.8 VMMOTORI diesel won't pass the new CARB standards but what gets me is that they now offer a 3.9 V6 VMMOTORI diesel in their 07 Jeep Cherokee. The CRD Liberty was a neat SUV with great sales numbers so if it was a hot seller why not make adjustments so it meets the new standards? After reading a lot of these postings on CRD problems that sounds a lot like mine I believe they stopped selling them because of all of these problems they are having. I'm still in a MOPAR product just not a Jeep CRD. Replies to this message: caribou1 (Dec 26, 2007 10:29 am)
#298 of 332 Re: CRD no more [cornbread1] by caribou1 Dec 26, 2007 (10:29 am)
Replying to: cornbread1 (Dec 24, 2007 5:35 pm) The VM engine is modern and reliable nowadays. It's just the accessories (not built by VM) that fail statistically by batch. This is typically what you get when you want to save a few pennies over a few thousand units of a given currency

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