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Jeep Liberty Engine and Performance Problems

89 messages,  Last post on Nov 30, 2009 at 4:55 PM

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

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#25 of 89 Re: Dealer say new liberty sputter is normal, can it be? [ucanfarm] by caribou1 Mar 19, 2007 (1:17 pm)
Replying to: ucanfarm (Mar 19, 2007 11:53 am) Ucanfarm, If I could bring my two cents worth of a thought here, I would like you folks to understand that the CRDs we get in the EU are not subject to these problems, at least they are not known to give problems. So where's the difference then? Is it a different group of employees who assemble the 'export' trucks? Could someone from the Toledo plant comment this? I doubt the fuel quality alone could justify so many issues. Every family here owns at least one diesel vehicle and dealerships no longer have dirty looking workshops. Most people buy their diesel fuel where it's cheapest, not where it's mixed with super high tech additives. The same applies to oil: people buy it in the supermarkets and the engines last forever
#26 of 89 Re: Dealer say new liberty sputter is normal, can it be? [careyb] by caribou1 Mar 19, 2007 (1:20 pm)
Replying to: careyb (Mar 19, 2007 1:15 pm) Do you feel these hesitations when the A/C control and headlights are turned off? Replies to this message: careyb (Mar 19, 2007 9:30 pm) krecker (Oct 28, 2008 2:41 pm)
#27 of 89 Re: Dealer say new liberty sputter is normal, can it be? [caribou1] by careyb Mar 19, 2007 (9:30 pm)
Replying to: caribou1 (Mar 19, 2007 1:20 pm) yes, headlight and A/C are turned off. I guess, getting back to my 1st question.... being told that the new libertys run leaner and therefore have a tendancy to run a bit rougher (sputter/hesitate) it something I'm just not that willing to buy into for the next 5 years of owning it. If no one else has this problem then I will just have to be a constant thorn in their side hoping they can fix it. But combining the sense of sputtering with the way the trany seems to always be looking for the right gear in its quest to rev as low as possible combines for the less then perfect riding experience. Replies to this message: krecker (Oct 28, 2008 2:41 pm)
#28 of 89 Re: Dealer say new liberty sputter is normal, can it be? [careyb] by siberia Mar 20, 2007 (3:07 am)
Replying to: careyb (Mar 18, 2007 9:53 pm) sputter is normal, can it be?   NO! It can be endemic to this particular year or model (based on CRD experience) but definitely not normal. If this were a 1960's car we would look at parts like the accelerator pump not squirting enough fuel, the vacuum advance sticking or not moving freely, centrifugal weights in the distributor not moving properly so not advancing the timing. Or even inaccurate timing or improper low speed jets in the carburetor - all things a corner garage could fix.   What I would do is ask to drive another 2007 to see if they all do it. If they won't let you, go to another dealership. Verify for yourself that this is a common problem.   These jeeps (like most everything else, now) are drive-by-wire. There is a rather cheesy position sensor in the gas pedal that may not be throwing a code but not reading properly. There is a throttle plate controller that may have the same issue. There are a number of sensors that might be performing marginally and not throwing a code. Just because there is no code does not mean the tech can't try something. It is a valid diagnostic to change out parts and change them back if there is no improvement.   Lastly, if it is a common problem it won't take very long for a TSB to show up at dealerships that will almost but not quite fix the problem. Good luck!
#29 of 89 valve problems with Liberty by madiscl Jul 10, 2007 (8:07 am)
i recently had a similar problem with my 2006 Liberty and it worsened to the point that it felt as though my Liberty was going to stall (both while idling and while accelerating); eventually, my "check engine" light came on so i took it in to the dealership. it turns out that there was excessive carbon deposits on the valves and all of the valves had to be replaced. and this is not the first time my dealer has had this problem. luckily, mine was covered by warranty. i suggest you ask your dealer to check your valves. Replies to this message: krecker (Oct 28, 2008 7:22 am)
#30 of 89 Re: Dealer say new liberty sputter is normal, can it be? [careyb] by jayrider Jul 10, 2007 (10:31 am)
Replying to: careyb (Mar 18, 2007 9:53 pm) I would suggest taking a thorough test drive in one of the new 07's sitting on the dealers lot and see if it does the same thing. Maybe test drive two and if your problem isn't evident in the other Jeeps you have a very strong case to insist it be remedied. Just say, " I want mine to run like the others or swap them out at no charge". An old lesson I learned the hard way is that before buying any new car, I take it and several others similarly equipped on test drives and settle on the one that drives the best. You would be surprised at how different identical cars feel on the road re accelerating, shifting etc.
#32 of 89 How do you prime the fuel water separator? by anabelle Jan 30, 2007 (6:08 pm)
The manual doesn't help at all... How do I re-prime? We are stuck in Ohio, the car doesn't start....Argh!!!!! Replies to this message: ucanfarm (Jan 31, 2007 1:15 am) anabelle (Jan 31, 2007 7:34 am) siberia (Feb 03, 2007 6:53 am) goodcrd (Feb 17, 2007 1:09 pm) and 3 more... jay_diesel (Feb 17, 2007 8:32 am)
#33 of 89 Re: How do you prime the fuel water separator? [anabelle] by ucanfarm Jan 31, 2007 (1:15 am)
Replying to: anabelle (Jan 30, 2007 6:08 pm) I would suggest to get a 11mm wrench. Make sure the tank is not empty, or why are you priming it in the first place? Anyways, pump the hand pump on the filter assembly till it gets harder to pump. Bled the air out by opening th the little nipple on the side of the fuel filter with the 11mm wrench but close it before the air stops coming out. Repeat the pump till it gets hard and letting the air out till bubble free fuel comes out. Just like the air shut the nibble off before it stops flowing. By the way use a long hose like a oversized aquarium hose on the end of the nipple to a container below the the jeep, or some rags to catch the fuel. Or one will smell fuel for a few days. Make sure the air nipple is closed tight and try to start it again. Might suggest putting the battery on a charger if you have tried to crank it a bunch. Replies to this message: anabelle (Jan 31, 2007 7:34 am) siberia (Feb 03, 2007 6:53 am) goodcrd (Feb 17, 2007 1:09 pm) farout (Feb 18, 2007 12:43 pm) and 2 more...
#34 of 89 Re: How do you prime the fuel water separator? [ucanfarm] by anabelle Jan 31, 2007 (7:34 am)
Replying to: ucanfarm (Jan 31, 2007 1:15 am) Hubby let the fuel get too low, then put a Bio/regular diesel mix. I think since it was so cold, the bio would not let the fuel flow. We ended up having it towed to a garage which was heated. The mech. did almost exactly what you said. But it really needed to be out of the cold for a while too. He suggests changing the fuel filter, who knows what it is going to look like now.   thanks...sorry to freak out...it was freezing on the Ohio turnpike   We have had so many issues already with this vehicle. Our turbo went bad and stranded us in Virgina. The parts were on back order, so the jeep had already been in the shop for a month. thanks much Replies to this message: siberia (Feb 03, 2007 6:53 am) goodcrd (Feb 17, 2007 1:09 pm) farout (Feb 18, 2007 12:43 pm) steve_ (Feb 18, 2007 1:35 pm) and 1 more...

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