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Jeep Liberty Starting and Stalling Difficulties

213 messages,  Last post on May 30, 2013 at 9:16 PM

You are in the Jeep Liberty and Jeep Liberty Diesel Forum.

What is this discussion about? Fuel System, Electrical, Engine, Diesel, SUV

    
 
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Messages Page 16 of 22

#146 of 213 Re: Stalling Issues 2003 jeep liberty renegade [xbeanx] by outman85

Sep 28, 2009 (1:56 pm)

Replying to: xbeanx (Sep 28, 2009 12:26 am)
Cam Shaft and/or Crank Shaft sensores need to be replaced, also as a precation take a can of "trottle body" clearner and douse your throttle body with it. I changed both of my sensors on my liberty and thar car runs like new. Sensores are about $30 bucks each, the "trottle" clearer is only about $10 bucks. Also when you replacing the sensores check the old ones you take out to see if there soaked in oil, That could be the reason your sensores died to begin with. Best of luck.

#148 of 213 Re: Stalling Issues 2003 jeep liberty renegade [xbeanx] by xbeanx

Sep 28, 2009 (6:18 pm)

Replying to: xbeanx (Sep 28, 2009 12:26 am)
Ok update.
 
Got home from work went to where my Jeep was at. Turns out the code was flashing "misfire on cylinder 3" so i swapped the coil of cyl3 with the one on cyl1. I reset the code and let it idle.. sure enough after 5 mins of idle, it registered "misfire on cyl1" So i took one of my old original ignition coils (the onlyone that was in decent condition) and placed it in cyl1. The misfire was not apparent anymore. as it was the misfire was barely noticeable however now it was gone. so my conclusion is that maybe i had 2 bad coils? talk about bad luck. Outman, I saw what you had put in there about the throttlebody cleaner. i'll be doing that once i get paid next (this freakin breakdown sucked me dry just about) im sure that will help with keeping things in shape. I'm going to drive it around a bit and update in about a week (or sooner if theres another issue). Anyone think maybe the pcm is shorting the coils? i guess i'll have to see...if it does, that will be bad coil #3...i must really have super bad luck if thatw as the case! i'll still troll the forum in case anyone has anything else to look out for. I love my jeep...but was contemplating trade in for a 4door truck if it kept breaking on me

#149 of 213 JEEP LIBERTY SPORT V 6 3.71 LITER STAHLING ISSUE by duggar

Oct 06, 2009 (4:36 am)

I, as like most in here have had the same problem with the vehicle staling out. I first came to this site this past weekend and did a little research before panicing. After reading 50 or so posts on the internet about this issue, I came to the conclusion that it may not be sensors but fuel line and vacuum issues. I purchased a fuel line additive to clean injectors for $2.99 and a can of gum cutter spray for $2.49. I began the process of cleaning up the fuel system and air intake system, My goal was to get to the intake manifold, Grabbing a flat head screw driver, I began disassembling the air intake apparatus. Still using the flat head screw drive. I loosened the clamps, loosened the plastic securing bolts on the main intake housing and pulled the main collection housing off the intake manifold. Using the gum cutter. I liberally sprayed the intake flapper while holding it open and was amazed at the amount of filth that was there. Upon closer inspection, as I was beginning to reassemble the parts, I noticed several of the vacuum hoses, connected to this unit, were cracked wide open. Further investigation left me with the conclusion that the hoses (rubber tubes) connecting to the main air intake were all cracked which caused unfiltered air to leak into the fuel combustion chamber ( IE:the dirty air intake flapper). The breakdown of these lines evidently lead to moisture being introduced into the fuel chamber causing the vehicle to run rough and stall out. As a quick fix for now . I used black electricians tape and sealed up the cracks in the hose lines. I will need to order all new lines for the vacuum system. After I taped each line, I re-assembled everything, having to remove the overflow tank for the radiator to get the hoses back on (you'll need a number 10 metric wrench for this, it is held by two (2) nuts to the fire wall). I tightened all the connections again with the flat head screw driver (use a long thin headed one). Next I un-hooked the battery cables, cleaned as needed and re-connected them. This reset the computer and the sensors allowing the motor light on the dash to go out. Knock on wood, it has been running without staling for two days now and it seems to have more power than before. My theory is that these cracks in the hose lines were allowing moisture and dirty air to get into the combustion chamber which messed up the fuel richness causing it not to ignite properly and miss fire hence the sensor failure. If I have any further problems I will post but for now everything is back to normal except for replacing the worn our air hoses.

#150 of 213 Re: JEEP LIBERTY SPORT V 6 3.71 LITER STAHLING ISSUE [duggar] by xbeanx

Oct 06, 2009 (12:12 pm)

Replying to: duggar (Oct 06, 2009 4:36 am)
thats really good info to know! i'd also like to point out to be careful once an ignotion coil goes out. In talking to several jeep mechanics (after my incident) it turns out that they go out like dominoes..basically if one goes out, the others are soon to follow. they are very testy when it comes to this.. thats what i'm gathering about the coils as well whoci would explain me getting 2 bad coils in the bunch.
 
Knock on wood so far my jeep is running fine.. i'll be checking the hoses as you did this weekend.

#151 of 213 Re: JEEP LIBERTY SPORT V 6 3.71 LITER STAHLING ISSUE [duggar] by duggar

Oct 07, 2009 (10:16 am)

Replying to: duggar (Oct 06, 2009 4:36 am)
Ok my theory has a few issues although the cracked hoses were a problem and it seemed to run better afterwards. It stalled again for my wife last evening and she had the heater on. I again unhooked the battery terminal and reconnected it to reset the computer. Everything was back to normal. Today I turned off the heat control and ran it close to 30 miles and no stalling. My next venture is to go with the heater on to see if it is drawing down on the battery. My battery is over two years old and may be getting week. If this is the case, it may have some affect on those sensors malfunctioning and causing a disruption in the ignition chamber. I'm off for a test drive with the heater on to see what happens.

#152 of 213 Re: JEEP LIBERTY SPORT V 6 3.71 LITER STAHLING ISSUE [duggar] by duggar

Oct 07, 2009 (1:39 pm)

Replying to: duggar (Oct 07, 2009 10:16 am)
Ok finally back from my road test. Had the heater on and boom there it went again. There are a number of things that it could be but have no idea why it stalled only while the heater was on. It has been backfiring. running rough. I left it sit for 15 minutes and it fired right up ran two miles and shut down again. Can't be the battery at this point or it would have been dead an hour ago. It is still cranking. here are possible answers: 1 bad batch of gas 2. fuel filter needs changed. 3 fuel pump is malfunctioning. 4, needs tuned up. Needs to be traded in, I've searched about every place I can think of for an answer. Any suggestion will help at this point. The vehicle is now unreliable.

#153 of 213 Re: Stalling Issues 2003 jeep liberty renegade [xbeanx] by pktechgirl

Oct 11, 2009 (11:02 pm)

Replying to: xbeanx (Sep 28, 2009 6:18 pm)
My 2005 Liberty Renegade (manual trans) just started having the same stall/idle issue, same symptoms over the last few days. It's got 61k miles. Day before I'd just finished a 600 mile drive and was using the defrost. I'd left the defrost on when I got out and thought maybe it wore out the battery. Swapped battery and jeep restarted but stalled over and over, especially while turning and braking. It's at the dreaded dealership so I'm seriously following potential solutions and outcomes here. I would really like to hear what happens to your jeep. I absolutely love my jeep and need it back! thanks.

#154 of 213 Re: Stalling Issues 2003 jeep liberty renegade [pktechgirl] by mfitzyk

Oct 12, 2009 (6:51 am)

Replying to: pktechgirl (Oct 11, 2009 11:02 pm)
A $7 can of throttle body cleaner ought to do it. The Jeep diverts exhaust back through the intake to decrease emissions which clogs up the throttle body with carbon deposits and decreases air flow. Your Jeep probably only stalls stop signs and red lights or while slowing down and not on the freeway because it is getting enough air plus has the forward momentum of the engine/transmission. Ours was filthy when we cleaned it. The dealer will tell you that there are all these error codes including "crank" and "camshaft" sensors that they will want to replace for $100's. Try the throttle body cleaner first, $7 is better than a $300 sensor that will just give you the same problem as soon as you drive it out of the service garage, which will just make them keep replacing more.

#155 of 213 Re: Stalling Issues 2003 jeep liberty renegade [pktechgirl] by jrlopez14

Oct 12, 2009 (1:51 pm)

Replying to: pktechgirl (Oct 11, 2009 11:02 pm)
i had similar problems too but mine wasnt with turns or stops but the codes did tell us that it was the camshaft and crankshaft sensor and we bought then and we did it ourselves its really easy...when we took our sensors off the were rusted on.

Messages Page 16 of 22

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