2003 Jeep Liberty Stalling At Idle

I ordered the part from a Chrysler dealership and installed it (no tools required), but until yesterday had not had a good opportunity to get the engine hot, run the A/C for long, and on a hot day to boot. To see how frequently Jeep Liberty problems occur, check out our car reliability stats. Most auto repairs shops charge between $75 and $150 per hour. It was the crank shaft positioning sensor. 90K miles right now, mainly one 150 mile trips once a week for the last 11 years. Well it happened again this morning. -New plugs-Filled up at different stations with good gas-Gets a consistent 17 mpg-Runs at 195-210* all day long My Jeep has had this issue a few times on a COLD start, usually after sitting overnight. The 2012 Jeep Wrangler has 7 problems reported for stalling while driving. Well car starts now, but when I blip the throttle and let the RPMs come down on their own, they come down too far and stall out the engine now. 7 L 210 hp Gas • The engine stalls soon after starting. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. 7L 2006, In-Tank Fuel Pump Module Assembly by Airtex®. This mostly starts in cold weather as I have not had a problem in the summer. Buy Delphi CV10153 Idle Air Control Valve: Fit well on my Jeep Liberty 2003 4WD. Check prices & reviews on aftermarket & stock parts for your 2004 Liberty Idle Air Parts. 0L 1997-2003). Equip cars, trucks & SUVs with 2003 Jeep Liberty Idle Air Control Valve from AutoZone. Well car starts now, but when I blip the throttle and let the RPMs come down on their own, they come down too far and stall out the engine now. Sometimes, the gages don't even dip, there's just a quick grab. I have an appointment next week to have it looked at (under warranty) but. I would like to thank all who posted Jeep stalling remedies on this site. Work great, solved a rough idle/stalling on a Jeep Liberty. Pay attention to low idle or stalling. C intake air controller and is located ion the side of the throttle body, and very easy to change with a torx driver (star shaped) or a phillips screw driver on some models. I have a 1989 jeep cherokee 2WD 4. Find aftermarket and OEM parts online or at a local store near you. Check prices & reviews on aftermarket & stock parts for your 2004 Liberty Idle Air Parts. If I'm driving, it picks right back up and drives like normal for a bit. May happen 10 times one day, and none the next. Irregular idle speed. 0 is that rough idle is usually caused by vacuum leak as mentioned above already. Cars make all kinds of sounds and most of them are completely normal signs of a well-tuned machine. Some models include the Liberty, Grand Cherokee, Wrangler, Compass, and Patriot. 2005 Jeep Liberty Limited 6 Cyl 3. It is neither inferred nor implied that any item sold by CARiD. Page 1 of 3: How to Test the MAP Sensor (Jeep 4. I think what folks are calling the stepper motor is called the I. Your Jeep? Dunno. You are here: Check Engine Light Home > Jeep Check Engine Light Questions & Answers. The auto repair labor rates vary widely across the country, and even within the same city. If I drove the car on ONLY petrol immediately after the reset (with no learned idle) then the original problem of low idle (bordering on stalling) returned immediately, and didnt get any better after 15-20 mins driving. Get updates on the latest Jeep recalls and safety reports, along with helpful info on what to do if your Jeep vehicle has been recalled. ISO Jeep Grand Cherokee 2000 ISO Jeep Liberty 2002 ISO Jeep Liberty 2003 VPW Jeep Wrangler 1998 ISO Gas USA Jeep Wrangler. Engine dies if I dont keep foot on the gas. P0123 Throttle Position Sensor/Switch A Circuit High Input Technical Description. I have a 2003 Jeep liberty 3. 4L Oem Fit IAC420 at Walmart. Now that it is stalling more frequently, I'm paying closer attention to things like engine idle. Update: So the TSB about hot start misfiring refers to heat soak on the #3 fuel injector and recommends the installation of a little shield. The cause is often a problem in the idle air control system. MAP Sensor Diagnostic Essentials. I have a 2003 Jeep Liberty Rnegade that I don't feel heats properly. It has serviced by two different dealerships on six different occasions. Engine stalls when warm Rough idle, stalls, when engine warm. 05 Liberty CRD. Jeep®, Wrangler, Liberty, Wagoneer, Cherokee. 0L MAP Sensor. 2004 Jeep Liberty, bought it brand new in 2003. Jeep Liberty owners have reported 15 problems related to engine stall (under the engine and engine cooling category). At time of purchase it had the ABS / Traction / Check engine light on. The latest reviewed version was checked on 13 July 2018. Others may require a professional mechanic. First off, we replaced the starter, and still nothing. Also please check out the statistics and reliability analysis of Jeep Liberty based on all problems reported for the Liber. How to Determine Why a Car Stalls at Intersections. Fix Jeep Liberty check engine lights with Jeep Liberty OBD2 scanners and OBD tools. Welcome to the Jeep Check Engine Light codes page. how come my 02 jeep liberty sport stalls out when i stop. First thought was to pop the hood and look and listen for vacuum leaks which we did as this would be the most common cause of this idle and surging condition. Partsgeek offers replacements for the Grand Cherokee, Cherokee, Wrangler, Liberty, TJ, Comanche plus more. 2003 Jeep Liberty stalls when at idle or stopped RPMs are at 700 or lower when stalls What might be the issue? My best guess is that the Idle Air Control (IAC) valve may need to be replaced. In many instances, stalling ends up being an idle control motor at its limit or a failed motor. The IAC is computer controlled and allows only a certain amount of air around the throttle plate. The Jeep Liberty was introduced by Chrysler as a sport utility vehicle in 2002. I had to basically pry the old one out of the [] new one won't fit in the [] old sensor outside diameter is. com or eAutorepair. Welcome to the Jeep Check Engine Light codes page. Select your year to find out more. Usually a bad or failing idle control valve will produce a few symptoms that can alert the driver of a potential issue. What is it, why is it there, how to does it work and why? My engine stalls (shuts down) at anytime, or even cranking, why? All comments are USA, not Export Jeeps. The Jeep Liberty Keeps stalling at idle or anytime you take pressure off the gas pedal for a couple of seconds - Jeep 2002 Liberty question. Jeep Liberty Engine Problems. 0 is that rough idle is usually caused by vacuum leak as mentioned above already. Jeep Liberty Brief Description of Defect Mfg. Also please check out the statistics and reliability analysis of Jeep Liberty based on all problems reported for the Liber. 2003 Jeep Liberty Engine Problems. Place the selector lever in P (PARK) to be sure that the fluid level check is accurate. This is especially true right after you fuel up. Step 1 - Finding the IAC. Car starts right up and your off to work, but after some much needed rush hour traffic, you stop for a coffee and shut the engine off, You return 5 mins later and car wont start. Re: Engine wants to STALL when you tap gas from idle. JEEP LIBERTY CHEROKEE Problems Stalling My 2002 jeep liberty Sport has died multiple times recently as I pull up to stop signs. I have a 2003 Jeep Liberty Rnegade that I don't feel heats properly. Jeep Liberty owners have reported 15 problems related to engine stall (under the engine and engine cooling category). It could stall again or continue for hours, days or weeks without further stalling. If you don't have service information you can buy a subscription online at alldatadiy. The car now has an issue with the heat, it blows cold until you turn it to cold then warm air comes out for about 10 seconds. 2003 Jeep Liberty Renegade 3. Alright, with this info under our belts, let's get testing. 858 and the new sensor is. 0 hour of labor. The Jeep Commander holds seven passengers and is approximately 2 inches longer than the Jeep Grand Cherokee. The automatic idle speed motor is common to most fuel injected vehicles. So, to start, let's look at what causes a misfire code in OBD II systems. - Service manager said all six ignition coils are bad (they expanded for some reason), he hasn't seen that before. Battery remained disconnected for extended period. My advice to anyone owning a Jeep Liberty - get rid of it - just take the loss and trade it in for anything but a Jeep. It's easy to overlook but a bad clutch fan will cause overheating in stop & go traffic, while you're idling or out on the trail at low speeds. Others may require a professional mechanic. “Spartan” is the one word I vividly remembered used to describe the Liberty. 0 hour of labor. Pressing the gas does not help. F43 — Powertrain Control Module. It started vibrating and thought it was a bad tire or something simple. And again, it doesn't stall at every stop. Finally got it to stay running but runs rough now. I have a 2000 jeep V6. I was almost sure the dealership would not help me being it was not a used vehicle sold as is. Back-fires thru' the intake manifold when accelerating your Jeep down the road. com FREE DELIVERY possible on eligible purchases. -New plugs-Filled up at different stations with good gas-Gets a consistent 17 mpg-Runs at 195-210* all day long My Jeep has had this issue a few times on a COLD start, usually after sitting overnight. The latest reviewed version was checked on 13 July 2018. Got my diagnostic codes and had a P0505 and a P0304. It was the crank shaft positioning sensor. 2003 Jeep Liberty stalls when at idle or stopped RPMs are at 700 or lower when stalls What might be the issue? My best guess is that the Idle Air Control (IAC) valve may need to be replaced. 2000 Jeep Cherokee intermittent engine cut-out 2000 Jeep Cherokee intermittent engine cut-out. RepairSurge covers the following production years for the Jeep Liberty. I have a 1989 jeep cherokee 2WD 4. Engine - by Cody 9/26/2019. The shifting problem usually surfaces when the vehicle is first started and the engine and transmission are cold. Slow engine return to idle: A failing TPS can report the minimum throttle position values incorrectly which can stop the engine entering idle mode when the throttle is closed. Your Jeep? Dunno. The most recently reported issues are listed below. It has stalled 9 times over the last year. Although generic, the specific repair steps may vary depending on. The shifting problem usually surfaces when the vehicle is first started and the engine and transmission are cold. Engine Stalls (Check Engine Light May or May Not Be On). For example, if you turn on your heater or air conditioner when you have a bad idle air control valve, then your engine will probably stall immediately afterward. 7 l ENGINE STALLS OR ROUGH IDLE 1. Jeep Liberty/Torque Specs & Socket Sizes. P1776G / P0700 trans. Cost of diagnosing the P0300 JEEP code. Idling in traffic and RPM's drop way downWK is running rough like it might stalland the check engine light flashes on and off for about 10 seconds, then goes off and everything returns to normal. It was the crank shaft positioning sensor. The stalling might still be caused by a faulty Idle Air Control valve. 03 Jeep Liberty rough idle/ stalling. If you dont have a manual let me know and I will look at mine and post the. Sometimes, the gages don't even dip, there's just a quick grab. 7 and My engine is running very rough it starts fine and Idles until it gets warm then it wants to stall. Low prices on Idle Air Parts for your Jeep Liberty at Advance Auto Parts. Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. What Do the Warning Indicator Lights Mean on a Jeep Liberty? by Jen Anderson Staring at a Christmas tree of blinking, brightly colored problems east and west of your speedometer, it's almost easy to miss the days when cars just broke down without warning. Place the selector lever in P (PARK) to be sure that the fluid level check is accurate. Campaign No. The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control (IAC) valve. Chrysler is recalling certain model year 2002 and 2003 Jeep Liberty vehicles manufactured January 9, 2001, through March 28, 2003, and 2002 through 2004 Jeep Grand Cherokee vehicles manufactured. F43 — Powertrain Control Module. 7l At Ecu Ecm Pcm Engine Control Unit. Maybe not as smooth as it should be, but not really a rough idle either. Low rumbles from the tailpipe, a soft rhythmic hum from the engine compartment, even a slight thunk sound when you first turn on your air conditioner--these are all good news. Get updates on the latest Jeep recalls and safety reports, along with helpful info on what to do if your Jeep vehicle has been recalled. Order Oxygen/Air-Fuel Ratio Sensor for your 2003 Jeep Liberty and pick it up in store—make your purchase, find a store near you, and get directions. Finally got it to stay running but runs rough now. It didn't work, but when I started the car saturday morning after sitting overnight, the idle was fine. This is especially true right after you fuel up. Symptoms of a BAD MAP Sensor. 2003 Jeep Liberty Idle Problems - PLease Help -? My Liberty seems to be having an idle surge. All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. Order your parts online or pick them up in-store at your local Advance Auto Parts. If you're experiencing idle issues on your Jeep Wrangler TJ the most likely culprit (and the first thing you should check) is your IAC (Idle Air Controller). I would like to thank all who posted Jeep stalling remedies on this site. A coating of carbon may accumulate in the idle air control, and cause malfunctioning. Stalling when it's cold can also be caused by a fuel leak problem inside the carb. Re: Engine wants to STALL when you tap gas from idle. If all hoses tight at both ends, remove idle air control (IAC) valve as well as hose from throttle body. Posted: Thu Oct 24, 2013 12:30 am. I took it to a jeep dealership where they replaced the idle air control module, it worked for a week, and then after a long trip on the highway, it began to do the same thing, same problem, turns over fine does not stay started, I live in the far north labour. 2002 Jeep Liberty 3. Engine And Engine Cooling Problem on the 2003 JEEP LIBERTY. Not to the point where it has to be. com This guide has been prepared to help you get quickly acquainted with your new Jeep and to provide a convenient reference source for common questions. 2004 Jeep Liberty, bought it brand new in 2003. Free 2-day shipping. With a newly programmed ECM or TCM for your Jeep from Car Computer Exchange, you can keep it running like a charm, whether on the road or on the trail. Just take a fine powder and fluff it when the motor is running by lines and see if any is being drawn towards a section of line. Many, many people have complained about their Jeep stalling out for no apparent reason. Using the tach in the vehicle it's idling at around 630 rpm's while in drive with foot on the brake. There may be lots of reasons a car stalls at intersections, including low automatic transmission fluid levels, moisture in your gas, broken sensors, or issues with the EGR valve. There is a common issue with shifting on a number of Jeep Grand Cherokee models as they age and their mileage increases. At fist it was stalling once every five days or so ,(and start right back up)then every day then every time it warmed up 15-20 minutes. I have an appointment next week to have it looked at (under warranty) but. This page contains information courtesy of Eric Giordano (JabaThaHut). I live in MN, so its pretty darn cold. I suspected the alternator, so I checked it out, but it's actually putting out 13. What is it, why is it there, how to does it work and why? My engine stalls (shuts down) at anytime, or even cranking, why? All comments are USA, not Export Jeeps. At idle the throttle plate is closed, of course. For example, if you turn on your heater or air conditioner when you have a bad idle air control valve, then your engine will probably stall immediately afterward. My jeep liberty has had issues with the heater system in the past. Get Yours Today! We have the best products at the right price. 0 The cost of diagnosing the P0300 JEEP code is 1. When you rev the motor, you should be able to hear the clutch fan 'roar' up to speed slightly behind your engine speed. Cars make all kinds of sounds and most of them are completely normal signs of a well-tuned machine. The 2006 Jeep Liberty has 3 problems reported for engine stalls/dies while driving. Repeat three times, then start your car. Does this sound like a misfire?. A Jeep Idle Control Valve is designed to work in conjunction with the engine computer to actuate a valve that maintains engine speed. RepairSurge covers the following production years for the Jeep Liberty. 2008 Black Jeep Liberty Sport 4. I will, of course pay the required fee or, if you are a private party doing me a favor I too could. I have a 2003 Jeep Liberty Sport 3. My advice to anyone owning a Jeep Liberty - get rid of it - just take the loss and trade it in for anything but a Jeep. OBD2 Code P0505 Jeep definition: The IAC (Idle Air Control) valve controls the idle speed of the engine. 2001 Jeep Grand Cherokee Stalling I would start your Jeep, let it idle, then start pulling on engine wiring to see if you can cause it to stall. P1776G / P0700 trans. EVAP Canister Purge Valve- The most common issue that causes the P0441 trouble code in your Jeep Wrangler is going to be the vapor canister purge valve. Jeep owners complain of stalling High-speed stalls, low-speed stalls, it's hard to isolate the problem will this fix a bad crank sensor or idle air motor? No. Jeep Liberty Weak Heat [ 11 Answers ] Momma has to haul the kids around in this thing starting Monday! Ok, so here's the deal. A number of Jeep Liberty's have this no crank condition caused by broken actuator pin inside the Ignition Switch Actuator Shaft as this is very common. To correct an uneven idle or stalling engine, you may need to clean or replace the idle air control valve. Torque Converter Stall Test. Intermittent stalling immediately after starting or punching gas There is gas, the starter is fine, the battery is good. Did you fix your problem? I think I'm having a similar problem as you with my Jeep Liberty 2003. Could be that it is telling the computer to increase the idle to keep the engine running at idle but im not sure on that one. The cause is often a problem in the idle air control system. Check prices & reviews on aftermarket & stock parts for your 2004 Liberty Idle Air Parts. The car now has an issue with the heat, it blows cold until you turn it to cold then warm air comes out for about 10 seconds. I own a 2003 Jeep Liberty that was purchased in February, 2003 and currently has 10,000 miles on it. all the gauges look normal. The Jeep Liberty was introduced by Chrysler as a sport utility vehicle in 2002. Others may require a professional mechanic. 7L 2006, In-Tank Fuel Pump Module Assembly by Airtex®. Well car starts now, but when I blip the throttle and let the RPMs come down on their own, they come down too far and stall out the engine now. Jeep Liberty Weak Heat [ 11 Answers ] Momma has to haul the kids around in this thing starting Monday! Ok, so here's the deal. Page 88 Jeep. Engine sat apart for a couple months. I had to basically pry the old one out of the [] new one won't fit in the [] old sensor outside diameter is. At higway speeds it stalls. It was able to influence the idle speed but not control it very well. Using the tach in the vehicle it's idling at around 630 rpm's while in drive with foot on the brake. Crankshaft Positions Sensors : Jeep Liberty 3. Is there anything I can do to make sure these issues do not happen?. 2002 jeep liberty 3. 2005 Jeep Liberty Limited 6 Cyl 3. "Spartan" is the one word I vividly remembered used to describe the Liberty. It has stalled 9 times over the last year. Very random. 2 liter engines came with a rather lowsy carter bbd carburetor which of goes out fo adjustment. It's advisable to clean the idle air sensor control motor even if there are no problems evident, in order to prevent dirt from caking up [source: 2Carpros]. , Chrysler, Dodge, Jeep, and Ram, 18 replies 2006 Jeep Liberty CRD, Chrysler, Dodge, Jeep, and Ram, 21 replies 2002 Saturn Runs Hot At Idle Only (AC Worsens It), Retired Brands, 19 replies. I had purchased a brand new 2006 Jeep Liberty (which I had wanted for some time) and it was a 2 year nightmare. Jeep Diesel Diagnostics 2005 - 2006 2. Step 1 - Finding the IAC. It can be cleaned using these steps. idle air control (iac) valve fit dodge jeep grand cherokee 53030657ab 53030657ac. Home mechanics can perform some of the repairs needed to solve the issue. 7L throttle body Old Man Emu lift Sky Slider Post subject: Re: low rpm's at idle and stalling. I then did another reset and this time did the ECU learning on petrol alone. Now that it is stalling more frequently, I'm paying closer attention to things like engine idle. The PCM (powertain control module) tracks the speed at which the crankshaft spins between each segmented section of its revolution timed with the injector and ignition pulse. free shipping. My 2007 grand cherokee would idle or stall mostly when i was moving slow in traffic or at a. Vacuum leak. The JEEP ASD "Automatic Shut Down relay". Idle was ok before all this mess. Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. Order Oxygen/Air-Fuel Ratio Sensor for your 2003 Jeep Liberty and pick it up in store—make your purchase, find a store near you, and get directions. This mostly starts in cold weather as I have not had a problem in the summer. Jeep®, Wrangler, Liberty, Wagoneer, Cherokee. There is a leak on the passenger side valve cover gasket. Your Jeep? Dunno. 7 L 210 hp Gas • The engine stalls soon after starting. Now they want to order a new PCM, doubling my costs from $500 to $1000. 0L 1997-2003). So, to start, let's look at what causes a misfire code in OBD II systems. Order Oxygen/Air-Fuel Ratio Sensor for your 2003 Jeep Liberty and pick it up in store—make your purchase, find a store near you, and get directions. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. threw in a sound system and completely gutted the old one and added 2 12 subs to a 300 RMS 1000 peak watt Kenwood 8105D amp and new 6. Browse your favorite brands affordable prices free shipping on many items. It has stalled 9 times over the last year. My TJ has a very low idle almost to the point of stalling, it shakes a lot and it feels like it wants to stall. I will, of course pay the required fee or, if you are a private party doing me a favor I too could. It has stalled 9 times over the last year. Irregular idle speed. I had to basically pry the old one out of the [] new one won't fit in the [] old sensor outside diameter is. When you turn the key all of the lights, radio, work. Engine sat apart for a couple months. “Spartan” is the one word I vividly remembered used to describe the Liberty. Low prices on Idle Air Parts for your Jeep Liberty at Advance Auto Parts. Some models include the Liberty, Grand Cherokee, Wrangler, Compass, and Patriot. My Jeep has 117K miles on it and it runs great. 2003 Jeep Liberty Idle Problems - PLease Help -? My Liberty seems to be having an idle surge. Symptoms of a BAD MAP Sensor. Using the tach in the vehicle it's idling at around 630 rpm's while in drive with foot on the brake. The stalling occurs at speeds anywhere from idle to 65 miles an hour. com This guide has been prepared to help you get quickly acquainted with your new Jeep and to provide a convenient reference source for common questions. 2003 Jeep Liberty 3. Checked for vac leaks with smoke machine, checked compression, changed injectors and replaced both bank 1 O2 sensors. It doesn't matter what temperature the engine is or how long between starts but if I rev up the engine while cranking it starts okay. At fist it was stalling once every five days or so ,(and start right back up)then every day then every time it warmed up 15-20 minutes. come to a complete stop and the engine is at idle. Easy way to test for a vac leak without any gauges is to spray break parts cleaner or carb cleaner all over the motor while its running and when your idle jumps thats the area where - 1997-2001 Jeep Cherokee. I have a 2003 Jeep liberty 3. Auto parts stores put their code readers on the vehicle and get no codes even though engine light is on. With a newly programmed ECM or TCM for your Jeep from Car Computer Exchange, you can keep it running like a charm, whether on the road or on the trail. Hi, have a 2003 jeep liberty 3. It's easy to overlook but a bad clutch fan will cause overheating in stop & go traffic, while you're idling or out on the trail at low speeds. Once you lift your foot off the gas the engine stalls immediately. 7L is an odd fire v-6 and when the odd cylinder fires it causes vibration (rough idle) i don't know if any of the above are true?. Another 2003 Jeep Liberty stalling problem: - Crankshaft sensor was replaced, didn't help. This happens both during cold starts and even after being warmed up. Page 1 of 3: How to Test the MAP Sensor (Jeep 4. Revs above 1500 rpm smoothly. My Jeep has 117K miles on it and it runs great. It is neither inferred nor implied that any item sold by CARiD. P0123 Throttle Position Sensor/Switch A Circuit High Input Technical Description. Engine stalls when warm Rough idle, stalls, when engine warm. Again, start the engine and compare how it is running at a stop to how it normally runs. Why Is My Engine Knocking When My Car Is Idle? When an engine knocks, one of the likely causes is low-quality fuel. If you don't have service information you can buy a subscription online at alldatadiy. Engine runs normally otherwise. This potentiometer converts the throttle valve angle into an electrical signal. Wont idle after warmed up. No check engine light. If there are no codes, "Done" will appear. 2003 Jeep Grand Cherokee I bought a 2003 Jeep Cherokee Laredo turns out the vehicle had some undocumented issues. Think of it like a command center for all the electrical functions of your car, and in FCA's case a very, very disfunctional one. I am not sure about the idle adjustment produres I have not had to use them but I am sure there in whatever service manual have. I will, of course pay the required fee or, if you are a private party doing me a favor I too could. It has serviced by two different dealerships on six different occasions. JEEP LIBERTY CHEROKEE Problems Stalling My 2002 jeep liberty Sport has died multiple times recently as I pull up to stop signs. Revs above 1500 rpm smoothly. May happen 10 times one day, and none the next. Cause: The IAC (Idle Air Control) valve was failing. 05 liberty running rich bank 1 I have an 05 liberty with the 3. It idles fine around 600 most of the time but occasionally it will just dip below 500 for a moment and then die (as I roll to a complete stop). -New plugs-Filled up at different stations with good gas-Gets a consistent 17 mpg-Runs at 195-210* all day long My Jeep has had this issue a few times on a COLD start, usually after sitting overnight. P0505 is an OBDII code that deals with the idle air control system in the Jeep Liberty. i just replaced mt idle control valve it was causing it to idle high, good luck! Jeep liberty stalls. To find out if it is, the next time you come to a stop, while braking with your left foot, slightly step on gas pedal with your right foot. It has serviced by two different dealerships on six different occasions. Others may require a professional mechanic. This information may be used by NHTSA during the investigation process. Compare 2004 Jeep Liberty Idle Air Parts brands. This is especially true right after you fuel up. This is the advice I got when my idle messed up this weekend. Vacuum leak. This mostly starts in cold weather as I have not had a problem in the summer. However, I did have a problem with a sometimes erratic idle, and at the end harsh erratic shifting, and then it threw a code for a bad throttle position sensor. Update: So the TSB about hot start misfiring refers to heat soak on the #3 fuel injector and recommends the installation of a little shield. It was the crank shaft positioning sensor.