Last post on Mar 24, 2013 at 6:40 AM
You are in the Jeep Liberty and Jeep Liberty Diesel
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Jeep Liberty, Biodiesel, Diesel, SUV
#10698 of 11441 Oil consumption issue
Nov 30, 2009 (6:16 pm)
This evening I received a call from another 2005 Jeep Liberty CRD owner who uses the same dealer I use. The dealer asked me to speak with this fellow.
In our discussion I learned the following.
1. His CRD has about 74K miles on it. He purchased it new and has been using the Mobil 1 0W-40 oil. Oil change interval is 6250 miles.
2. Up to about a year ago, oil consumption was not an issue and he told me took a 6000 mile cross country trip without a problem.
3. Oil consumption is about 500 miles/quart. There is no external oil leak.
4. On start up, there is a little white smoke but no blue smoke. There is no blue smoke that is visible when driven.
5. He does a "nose" blowing every second or third day and gets a significant amount of black soot coming out of the exhaust each time. For about one year most of his driving is stop and go city.
6. He uses the cheapest fuel he can find, a no name brand which I avoid. He does not use any fuel additives.
7. States has good power at all times.
I suggested that he stop using the Mobil 1 and try either Shell Rotella 5W-40, RedLine or Amsoil. Also suggested he put some decent additive in the fuel to clean out the fuel system and combustion chambers.
I am of the opinion that there are several places to look here.
1. Turbocharger is starting to fail.
2. Bad valve seals or bad valve guides
3. Warn piston rings, a broken piston ring(s) or carbon loaded rings.
4. Oil being pulled into the engine by some other route that I have not thought of.
Any input/ideas welcome.
As always, thank you.
#10699 of 11441 Re: Oil consumption issue [winter2]
Dec 05, 2009 (5:11 pm)
You might check the crankcase ventilation valve. If that fails I could see the turbo really sucking oil.
#10700 of 11441 Re: Oil consumption issue [mdamick]
Dec 06, 2009 (5:18 pm)
I asked about that part and it is in good working order. Any other ideas are welcome!
#10703 of 11441 Re: Oil consumption issue [winter2]
Dec 07, 2009 (8:22 am)
Basic Causes of huge oil consumption:
1. Turbo bearing seals leaking oil directly into exhaust.
2. Broken / stuck / wornout piston oil ring.
3. Gouge on cylinder wall
4. Plugged PVC device causing oil to be sucked into intake air stream
All of these items except item 1 will cause rough engine performance becuase oil enters combustion chamber and may cause misfits or incomplete combustion. Eventual engine exhaust will carbon up.
Items 2 & 4 are usually found on higher mileage cars with poor service history/
Item 1 found on mid to hig mileage car which are driven at highway speed and then not allowed to cool off turbo before shutdown.
Item three is usually caused by missing air filter allowing foreign object into intake air stream and damaging engine cylinder. A broken fin on turbo may also cause engine damage of cylinder, head and valves This is usually death of engine if not corrected immediately before cascading failures blow engine.
Using 1 quart of oil per 1K mile is normal (says Chrysler). Items above are indicated by several quarts of oil per 1K miles or smoke cloud behing car.
#10704 of 11441 Re: Oil Pan Blues [jkievit240], drainplug size
Dec 07, 2009 (8:36 am)
The Liberty Diesel drain plug has a weird, seldom used size, 16.4mm with 1.33mm pitch. Neither metric nor SAE nor BSW. Just plain odd. Maybe an old marine standard? VM Motori was/is a marine engine supplier.
My solution is to drill and tap to 18-1.0(best) or 18-1.5(ok). There are cheap 18-1mm taps on ebay right now! (but 18-1 bolts/plugs are hard to come by!)
Since an 18-1 requires a 17mm tap drill size, this will work. An 18-1.5 requires a 16.5mm tap drill size so that works too since our original hole has a major diameter at about 16mm.
#10705 of 11441 Correction: Oil Pan Blues [jkievit240], drainplug size [desmo750ss]
Dec 07, 2009 (8:40 am)
Small error, our drain-plug's major diameter is about 16.4, not 16.0 as I said in previous post. That is still ok if you are going to use an 18-1.5 plug using the 16.5 tap drill.
#10706 of 11441 Re: Correction: Oil Pan Blues [jkievit240], drainplug size [desmo750ss] [desmo750ss]
by steve_ HOST
Dec 07, 2009 (9:40 am)
Just a FYI, but after posting, you may edit your post for 30 minutes.
#10707 of 11441 Re: 2005 Jeep Liberty CRD Fuel Filter [crash227]
Dec 07, 2009 (4:36 pm)
I had my fuel filter changed at the dealer two weeks ago. When I go the Jeep back it now sputters around 1400 RPM, more-so when warming up after it has been driven to operational temperature and then turned off for a while. I took it back the following Wednesday to have them fix it. What they told me is that I have to replace the filter housing under a TSB # 12-011-09 issued April 17,th 2009 to correct the problem. TSB cover the “HARD START or NO START or ROUGH IDLE” and covers ALL 2005 through 2007 vehicles with the VM 2.8L turbo Diesel (Cherokee, Liberty, and Voyager) sale code ENR. I was quote $200.41 for the new housing installed. The part numbers are: Wiring Kit – 6804308644, and Fuel filter/Water Separator Assembly Kit - 68043089AA, labor is listed at 0.5 for KJ (Labor Operations No. 14-40-02-91)
Now this problem didn’t exist before the filter change, and I haven’t had any issue with the dealer before this service. Today, I went to the dealer to get the O-rings for the fuel filter (to change it myself) and they can’t be ordered separately. SO I ask for the complete filter kit (includes O-rings), then he tells me they can’t even get the fuel filter for the housing I have in my CRD the stock is “ZERO” at the dealer and Jeep. I got the last filter from their shelf. They can get the new filter part number…
Has anybody else been informed of this TSB?
I had 69,931 miles when I took it in for the fuel filter and oil change (Mobil 1 0W-40 since new) every 5000 miles and they told me the warranty would not cover this Chrysler forced change. I have been reading this forum since the beginning and bought my CRD in July of 2005. I have had the recalls completed, and the F37 did reduce the power. Now it is harder to maintain speed with our (3000#) 18’ camper in tow, the CRD is now more like our Montero we traded-in as it didn’t have the power if I turn on the A/C. The CRD did tow well until the F37 and it was part of the purchase agreement I had with the dealer at time of purchase: The CRD had to pull the camper without struggling and it did in the test drive with the camper in tow.