2015 jeep wrangler code p0128

Before you can reset the P0128 code in your Jeep Wrangler, it is essential to locate the OBD-II port. The OBD-II port is a standardized diagnostic interface that allows you to connect an OBD-II scanner to your vehicle. In most Jeep Wrangler models, the OBD-II port is conveniently located under the dashboard on the driver's side.

2015 jeep wrangler code p0128. 7 posts · Joined 2021. #1 · Mar 1, 2021. When driving on the road, my CEL came on, managed to scan it and my scanner came up with the P1239 code. Haven't heard that one before I so I looked it up and apparently it calls for my engine oil temp being too low. Has anyone else had this code in the past, if so, what did you do to correct it?

Yes, park on an incline and burp it, but notice that on the thermostat there is a round plastic screw. That is there to help bleed the system. You can get air trapped behind the t-stat and cracking the screw will help the air to get out. Will take much less burping letting the air out there. Wolfslash16 and geeve420.

The P0128 code is set when the engine control module (ECM) determines that coolant temperature is lower than the original equipment thermostat’s opening temperature. In this mode, when everything is warmed up, the ECM begins to use the oxygen sensor(s) for fuel control.P0128 Jeep Code - Thermostat Rationality - Code Popularity: 91,871 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 2/3. Table of contents.P0128-THERMOSTAT RATIONALITY. Theory of Operation. The PCM predicts what the engine coolant temperature should be, based on the engine coolant temperature at start-up, ambient temperature and how the vehicle is subsequently driven. The predicted engine coolant temperature is compared to the Engine Coolant …Check Details. 2015-2018 Jeep Renegade code p0128 thermostat fix - YouTubeP0404 - Egr Position Sensor Rationality Open. P0405 - Egr Position Sensor Circuit Low. P0406 - Egr Position Sensor Circuit High. P0420 - Catalyst Efficiency (bank 1) P0430 - Catalyst Efficiency (bank 2) P0440 - General Evap System Failure. P0441 - Evap Purge System Performance.The code is P2096. I have only heard of TJs with this code, not JKs. Here's what I was doing: I was driving at about 50mph for 30 miles with about 4" of snow on the road. I had the gas pedal pushed way down just to maintain my speed. Under normal conditions, my Jeep would have been doing 90+mph with accelerator pushed so far down.2015 Jeep Wrangler 2-Door (JK) 2014 Jeep Wrangler 2-Door (JK) 2013 Jeep Wrangler 2-Door (JK) ... and during that time I've had to frequently deal with P0128 codes, as the temperature will rarely rise above 185 degrees (only rising above that if the engine is run hard and heat-soaked). ... Net result is my rig threw a CEL and codes for ...

The most common symptom of a P0128 trouble code in a Jeep Wrangler is an illuminated malfunction indicator lamp (MIL). Other symptoms may include poor engine performance and a decrease in fuel economy. Lack of heat- The most prominent symptom of the P0128 trouble code in the Jeep Wrangler is the lack of heat. When the thermostat doesn't ...This fixed the issue on my 2010 Jeep Wrangler!Hope it works for you.#Jeep#JeepJK#JeepOxygenSensor1) Warm engine up for five minutes (must reach closed loop) 2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes. 3) Stop and idle for 3 minutes. 4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes. 5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor).P0128 code. I know the fix for the code is 99% of the is a new tstat but I just wanted to ask why the code is causing no effect on the system. The vehicle heats up to normal temp, heat blows and runs fine. The code is tripped because "engine has not reached the required temperature level within a specified amount of time".2D barcodes are being used in some interesting ways. Visit HowStuffWorks to learn everything about 2D barcodes. Advertisement In the summer of 1974 at a grocery store in Troy, Ohio...

Now, the description of P0128 is the engine takes too long to warm-up. Its an emissions requirement, because the engine makes more emissions while its cold, so the Federal Gov mandates it has to warm-up within a certain amount of time. So the first assumption would be its the thermostat.What is Engine Code P0128 in a Jeep Wrangler? The engine code P0128 in a Jeep Wrangler refers to a faulty thermostat or coolant temperature sensor. It indicates that the engine is not reaching its operating temperature within a specified time frame. Causes of Engine Code P0128 in a Jeep Wrangler. The potential causes of engine code P0128 in a ...Yes, park on an incline and burp it, but notice that on the thermostat there is a round plastic screw. That is there to help bleed the system. You can get air trapped behind the t-stat and cracking the screw will help the air to get out. Will take much less burping letting the air out there. Wolfslash16 and geeve420.OBDII Codes Engine Light Definitions Diagnostic Repair | AutoCodes

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1998 jeep xj classic, I need to know the next steps in fixing my heater, I flushed the heater core a while back and that helped for a little bit but now it feels like it’s back to normal. Luke warm. if I’m driving it’s fine if I get back to an idle the temp goes back down and air gets colder.2. Turn the ignition key to the “on” position without starting the engine. 3. Access the scanner’s menu and select “Read Codes” to retrieve the P0128 code. 4. After reading the code, select “Clear Codes” or “Erase Codes” option on the scanner to …Jeep Wrangler: P2181 Symptoms. Engine overheating. Engine too cold. No/low heat. Stalling, rough idle. If the engine is stalling and running rough after getting this code, it is likely that the head gasket could be blown if it got hot. If the engine is running cold it could run rough because it's too rich.Follow up to the original question. My CEL has been on for a few days. Finally scanned last night and got the same code P0128. Coolant was pretty low, but not below the add line. I went ahead and topped off the coolant. Was hoping that's the simple fix before replacing the thermostat. The jeep is running fine, all the temperatures seem normal.2005 4.0L: Codes P0016, P0171 and P0174 | Jeep Wrangler TJ Forum. Check Details. Replace p0016 opda. Jeep compass renegade 2.4 code p0016 engine light on. car not startingWhat should i do about p0122 code set on my 2002 jeep wr Does a p0016 code mean i need to replace the opda?Jeep code engine p0016 compass renegade fix. P0441 jeep wrangler ...

colorubi. To erase a code, use a scanner tool to remove that specific code. To dump all codes, remove the battery cable for 10 minutes, then reconnect. If you want to erase the adaptive memory completely and set the ECU to a new start up, remove the cable 10 minutes, reattach the cable and turn the key to the run position.The P0700 code in your Jeep Wrangler is a generic OBD-II code that indicates a malfunction within the transmission control system. This code is not specific to any particular issue but rather points to a general fault in the system. Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift ...P0300 code becomming more frequent. Hey guys, 2015 JKUR 6 spd owner. ~90,000km's (56,000miles). On my 20-30min commute to and from work I get a period of about 10 sometimes 30 seconds where the engine will misfire consistently. It'll misfire at idle, off the line, at any speed or RPM, but basically it'll misfire for that short period of time ...I try to crank it again and nothing. Had to take it out of gear and roll it down the street. A few minutes later, I was able to crank it and I read the codes. It showed C2101 and C2103 for battery and system high voltage. My traction control light is …Fixing P0128 in the Dodge Caravan is usually a pretty easy thing to do since, 90% of the time, a stuck thermostat will cause the problem. Here are the most common causes of P0128: Thermostat Stuck Open - Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. When a thermostat is stuck open, it allows ...tmoca Discussion starter. 77 posts · Joined 2010. #1 · Oct 27, 2021. Okay, so my engine light came on today. Stopped by the auto parts store to have the code checked. Came back P0128 stating coolant temp below regular temp. So the guy suggested a thermostat said it is quite common. I also snagged some coolant to top it off, because I know I ...447 posts · Joined 2016. #2 · Jan 23, 2017. That code is usually displayed when the engine takes too long to reach operating temperature (thermostat stuck open). So, under certain conditions after you clear the code, depending on outside air temp, driving conditions, it may warm up within the parameters the computer is looking for, despite ...The description for code P0128 is "coolant thermostat (coolant temperature below thermostat regulating temperature)." This code is set when the PCM notices that the engine has not reached operating temperature within the specified time. ... I have a 2012 jeep wrangler it posted a code of P0128 for about three days and then it went away is ...Its your rigs computer telling you there is an issue. Preventative maintenance helps things like this from popping up. P0128 code definition Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What the P0128 code means The P0128 code means that the engine coolant is not getting warm enough, fast enough.

Code P0428. Was the recipient of a hit and run collision in my 2014 Turbodiesel JGC 3 weeks ago. The idiot that hit me was driving a Honda Accord and he made a direct hit on my driver's side wheel. New axle, knuckle, wheel, tire, front grill, side panel, etc. 3 weeks and $11k later I got the car back and all seemed fine.

Meet the Experts. 2012 Jeep Wrangler Sport getting codes. P2311, P0304, U0103, U0114, U0100, U110B,and U0184. Not sure what going on. I - Answered by a verified Jeep Mechanic.P0108 is a generic OBD-II trouble code. It indicates your Jeep Wrangler's MAP (manifold absolute pressure) sensor's voltage reading is outside of the normal operating range. The voltage is too high. It's most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming intoP0128 code. I know the fix for the code is 99% of the is a new tstat but I just wanted to ask why the code is causing no effect on the system. The vehicle heats up to normal temp, heat blows and runs fine. The code is tripped because "engine has not reached the required temperature level within a specified amount of time".However, the Diagnostic Trouble Codes (DTC) were enough to put the Jeep into limp mode. U0414 - Invalid Data Received From 4-Wheel Drive Clutch Control Module. C1405 - Transfer Case Range Position Sensor Circuit High. I did a Google search for U0414 and came up with a posts in some Jeep forums indicating it is a bad transfer case switch.With a P0128 code, the first step is to get it properly diagnosed to figure out what is causing the malfunction in the coolant temperature circuit. Using the live data function of the FIXD sensor and app allows you to read and analyze engine temperatures to properly diagnose a P0128 code. >Click here to get FIXD for just $19.99 for a limited time!Hydro blue pearl 2015 jeep wrangler unlimited for sale in randolph, nj2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 code Jeep wrangler sahara red unlimited jk forum rock valve recalls fuel tank control over rear bad cold weather gear lightsHemi v8-powered 2017 jeep wrangler unlimited rubicon for sale on bat.trailhunter. 1858 posts · Joined 2013. #2 · Aug 22, 2018. From the internet. There are two main*causes*for*P0128: The most common*cause*is an engine coolant thermostat that has stuck open or is opening prematurely. The next*cause*is a problem with the engine coolant temperature sensor or the wiring associated with the sensor.Of course, they can't get it looked at in a timely fashion, so I'll do it myself. On the 2013 Wrangler JK, I have had the P0128 light on since having the water pump squeal replacement. Last week I replaced the thermostat (and housing-one piece) to the tune of ~$75, including a gallon of the $26 dollar OAT antifreeze. Light decided to come back on.Find the best used 2015 Jeep Wrangler near you. Every used car for sale comes with a free CARFAX Report. We have 2,819 2015 Jeep Wrangler vehicles for sale that are reported accident free, 887 1-Owner cars, and 3,898 personal use cars. ... Enter ZIP Code. 50. miles of. Make & Model Jeep Wrangler ...

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P0128-THERMOSTAT RATIONALITY. For a complete wiring diagram,refer to the Wiring Information . When Monitored and Set Conditions. When Monitored: This diagnostic runs when the following conditions are met: - With the engine running. - Start up coolant temperature less than 65°C (149°F).P0128 thermostat code. how to replace thermostat? 2015 jeep wrangler. P0128 code: replacing your 2012-2017 jeep jk thermostatCode coolant p0128 thermostat temperature regulating below Changing the thermostat in a 2015 jeep grand cherokee (p0128)P0128 engine coolant temperature below thermostat regulating. ...For the first time that I can recall Rubi started throwing an error code. After several months I decided to fix it. Originally I was told it was the cooling ...Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...T. tonydee Discussion starter. 37 posts · Joined 2017. #1 · Jan 24, 2020. Hi, In my 2013 JKU (40,000 mi) I'm getting a P0128 code. This is happening frequently here in south east Pennsylvania in the winter. It did happen once in the summer. I keep clearing the code with my ODB II scanner. The temp is running 169-174 deg F according to the OBD ...Code P0305. Hi members I'm new to the forum. Wrangler 2014 unlimited JK. Code P0305 misfired cylinder 5. In the process of addressing this problem I've learned a few things. As of now I have replaced all spark plugs and all coils. Also ran a concentrated amount of Sea Foam through the injectors. Thought for a short while I had the problem fixed.2012 jeep wrangler: review P0128 code 2013 jeep wrangler P0128 jk thermostat Wrangler jeep caradvice. Repair Garage. Home; ... Hydro Blue Pearl 2015 Jeep Wrangler Unlimited for sale in Randolph, NJ. Check Details. P0128 code 2013 Jeep Wrangler | Which Antifreeze to Use | Thermostat R.Labor: 1.0. To diagnose the U0414 Jeep code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.The logic is TPS1+TPS2 = 5v. All the time. TPS1 goes from low to high, TPS2 goes high to low. If TPS1=1v, TPS2=4v. Anytime this correlation fails then you get P2135. P0221 indicates a problem with TPS2 circuit. If I was jammed up and had to do the SWAG (Scientific Wild-A** Guess) method I would replace the TPS. ….

Jeep Grand Cherokee & Commander Forums. WK Grand Cherokee & XK Commander Forum. 05 WK Limited Throwing Codes P0128 and P0700. Jump to Latest Follow 2K views ... 2015. G. Goose34 ...In this video, I'll explain what the P0128 Coolant Thermostat Error Code means when your check engine like goes on and you get this code. Another name is P01...I have a 2012 Jeep Wrangler Unlimited Sport...I got the P0128 code and we did the following: Replaced the thermostat, replaced the coolant temperature... Home. Forums. New posts Search forums. ... How to Change Thermostat with Housing Assembly 12-17 Jeep Wrangler - YouTube Use correct coolant. Do not mix or bad stuff can happen.SOLD 2018 Gobi Recon unlimited, Mopar 2" lift coils combined with RK rear coils wedges, AEV geo brackets, AEV rear track bar, TF rear track bar bracket, Falcon 3.1 shocks, Toyo AT3 35x11.5-17 on AEV Salta wheels, Falken AT3W 255/80-17 on stock recon wheels, Grabars, RE gas skid tank, mopar head liner, Warn VR10 and Maximus3 winch plate. Yeti4x4 III ...Aug 8, 2023 · Jeep Code P0128 means that your Engine Coolant Temperature is below the thermostat regulating temperature. Simply put, the coolant which helps regulate your engine’s temperature is colder than it should be. What happens as a consequence is that your engine will be running colder. The ECM, an electronic control unit placed in the engine ...Sirius satellite radio is available in many new cars, including Jaguar, Mazda, Ford, Jeep, Chrysler, Dodge, Mercedes-Benz, BMW, Volvo, Volkswagen and Audi vehicles. If your new car...#1 · Dec 21, 2016. CEL p0128 code 'coolant temp below thermostat regulating temp' This would show up on cold days. So I thought my IAT may be bad, so for $20 I changed that, but I am still getting the CEL and , in addition, code p0113 'IAT sensor 1 circuit high input' …Joined Jun 11, 2018 Threads 2 Messages 113 Reaction score 273 Location Colorado Website www.facebook.com Vehicle(s) 2018 JLU Sport S; 2002 KJ Sport Occupation 2015 jeep wrangler code p0128, A subreddit for Jeep Wrangler enthusiasts Members Online 2015 Wrangler JK Check Engine Code P0128: Coolant Thermostat Temperature Below Regulating Temperature…, Ratchet said: P0128 sets when it takes longer than normal for the engine to reach operating temperature. Generally caused by a thermostat that is partially stuck open and/or low engine coolant. If there is a problem with the coolant temperature sensor, there are several trouble codes that can set for that as well., trailhunter. 1858 posts · Joined 2013. #2 · Aug 22, 2018. From the internet. There are two main*causes*for*P0128: The most common*cause*is an engine coolant thermostat that has stuck open or is opening prematurely. The next*cause*is a problem with the engine coolant temperature sensor or the wiring associated with the sensor., P0128 Jeep Wrangler 2015. P0128 code 2013 jeep wrangler Diagnose and fix jeep wrangler p0457. 23 May 2023. P0344 scenery least pretty jpeg Unlimited hydro vary 4dr rubicon 4wd Jeep wrangler. ... P0128 code 2013 Jeep Wrangler | Which Antifreeze to Use | Thermostat R. Check Details. DTC P0128 How to replace the thermostat on a 2.4L Jeep Dodge ..., 2.26K subscribers. Subscribed. 118. 18K views 3 years ago. Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code. ...more., The most common symptom of a P0128 trouble code in a Jeep Wrangler is an illuminated malfunction indicator lamp (MIL). Other symptoms may include poor engine performance and a decrease in fuel economy. Lack of heat– The most prominent symptom of the P0128 trouble code in the Jeep Wrangler is the lack of heat. When the thermostat doesn’t ..., 171 posts · Joined 2017. #2 · Mar 15, 2019. I had the P06DD code and ended up replacing the pump. There's an oil pressure sensor switch by the back oil cooler housing towards the firewall. I know people have replaced that and if that doesn't clear than more than likely you'll have to replace the pump., Sirius satellite radio is available in many new cars, including Jaguar, Mazda, Ford, Jeep, Chrysler, Dodge, Mercedes-Benz, BMW, Volvo, Volkswagen and Audi vehicles. If your new car..., The Jeep is a daily driver, mostly short trips. This was a P0128 code. I had replaced the coolant temp sensor twice, and the thermostat 3 times. I also took it to the dealer who charged $95 to tell me he thought the fix was changing the thermostat housing for $400, which I declined to do. LOL., Should I Get a Computer Science Degree or Go to a Coding Bootcamp?... The best online coding bootcamps at colleges was created using Updated May 23, 2023 • 5 min read The technolog..., Introducir 81+ imagen engine code p0128 jeep wrangler I have a 2014 jeep wrangler unlimited sport that is throwing p0017 【印刷可能】 p0340 jeep cherokee 255886-jeep cherokee code p0340 Introducir 57+ imagen how to reset p0128 code jeep wrangler, P0128 Code - How To Replace Jeep Wrangler Coolant Sensor, Thermostat & Bleeding Coolant System - YouTube. Just Empty Every Pocket. 2.52K subscribers. Subscribed. 448. 33K views 1 year ago..., Follow up to the original question. My CEL has been on for a few days. Finally scanned last night and got the same code P0128. Coolant was pretty low, but not below the add line. I went ahead and topped off the coolant. Was hoping that's the simple fix before replacing the thermostat. The jeep is running fine, all the temperatures seem normal., Are you in search of the perfect off-road vehicle that can handle any terrain? Look no further than a Jeep Wrangler. Known for its ruggedness and versatility, the Jeep Wrangler is ..., SpottyJ. 212 posts · Joined 2013. #2 · Feb 4, 2020. I have a 2013 Wrangler JK, last week, at 87K, it threw Code P0305. Started running rough at idle. Bought it dealer, after they tore it apart, they confirmed a bad head. They said new head is on back-order and could take months., P0301 dart P0128 cherokee How to change the headlight bulbs of a jeep grand cherokee (5 minutes Jeep cherokee code p0300 engine light on 2014 2015 2016 2017 2018 2019, Low engine coolant level Leaking or stuck open thermostat (likely) Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor. Read more at: https://www.obd-codes.com/p0128. Copyright OBD …, 2012 Jeep Liberty Code P0128 2012 Jeep Liberty code P0128 Replaced Thermostat and temperature coolant sensor, - Jeep Cars & Trucks question ... 2015 • 2005 Chevrolet TrailBlazer. 1 helpful. 1 answer. ... 2002 jeep wrangler 6 cylinder: 2002 Jeep Wrangler. I want torque setting for jeep 3.7l on cylinder head., Don't procrastinate on fixing misfires as they can quickly damage catalytics. as for your p0128, it was likely a history code (unless your check engine was on solid. p0128 will only reset after quite a few cycles (believe 40 from history). No worries as if it did set once, your thermostat was likely losing some performance., 4 posts · Joined 2019. #1 · Mar 26, 2020 (Edited) I recently had an engine light come on in my 2013 Wrangler Sport, 2dr. 6 cyl. Code was P0128. I found the code issue. My coolant reservoir was low. No leaks found. I added fluid and cleared the code (disconnected the battery for an hour). No re emergence of the engine light yet, but I …, Diagnose and fix jeep wrangler p0457 Jeep wrangler P0128 code temp incident low P0128: low temp code incident. ... Hydro blue pearl 2015 jeep wrangler unlimited for sale in randolph, nj. Cylinder misfire wranglerJeep wrangler P0128: low temp code incidentP0128 code temp incident low., Jeep wrangler unlimited lift tires nitto terrain wheels fuel maverick side 18x9 steps suspensionP0128 code 2013 jeep wrangler 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 codeJeep wrangler engine code p0153., Jul 10, 2019 · Hello all. Having an issue on 2006 2.4L TJ. The P0128 code keeps coming up. I've done the following: Replaced thermostat with Stant 195. Replaced the Coolant Temperature Sensor (also Stant) Flushed and Burped the coolant. Still getting the P0128 code., P0128 Jeep Wrangler 2015. 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 code P0344 scenery least pretty jpeg Jeep cherokee p0128 4l. Diagnose and fix Jeep wrangler P0457 - YouTube. P0123 code Jeep wrangler P0128 code temp incident low. P0128 cherokee., 548 posts · Joined 2014. #1 · Feb 17, 2020. Hi all. I got DTC code P0128 this morning - probably stuck thermostat. 2015 JKU with almost 80K... so probably it's time. Jeep is covered with lifetime powertrain warranty., 107 posts · Joined 2013. #1 · Mar 23, 2015. I recently got a code "P0128 thermostat rationality" on my 2015 Jeep SRT. I first had a Jet 180 thermo and recently switched to a Mishimoto 180. Anybody else ever get this code? Is there a way to clear and see if it comes back without going to dealer? Like., Walk through the steps for replacing a thermostat and housing. Once that is done follow up with bleeding the air out of the system. These steps will clear ..., Engine temp 120 p0128 code. ... Just bought a 2015 jeep grand Cherokee last week with 99k miles. It is the 3.6L v6. No check engine light when I drove off the lot. FFW roughly 50 miles. Check engine light came on. Odd.. and convenient for the dealership or very bad timing for me. I opted out of dealer warranty or gap coverage as my dad sells ..., jeep-wrangler-jk-3-6-pentastar-engine-used-angle.jpg. 206.5 KB Views: 1,033. P1050973.jpg. 134 KB Views: 895. ... So, for anyone who reads this looking for a solution to a check engine light code P0128, replace the thermostat first (Part #5184651-AG), top off the coolant, make sure you bleed the air in the system well and then be patient. Side ..., 7 posts · Joined 2021. #1 · Mar 1, 2021. When driving on the road, my CEL came on, managed to scan it and my scanner came up with the P1239 code. Haven't heard that one before I so I looked it up and apparently it calls for my engine oil temp being too low. Has anyone else had this code in the past, if so, what did you do to correct it?, Joined Jun 11, 2018 Threads 2 Messages 113 Reaction score 273 Location Colorado Website www.facebook.com Vehicle(s) 2018 JLU Sport S; 2002 KJ Sport Occupation, Le déclenchement du code défaut P0128 peut être dû à : Une ou plusieurs fuites du système de refroidissement. Un niveau de liquide de refroidissement trop bas pouvant entraîner la formation d'une poche d'air au niveau du capteur de température du liquide de refroidissement. Un thermostat bloqué en position ouverte., Wrangler unlimited jeep altitude edition test 2001 drive consumer guide msrp charge arrived destination trim came including truckP0128 thermostat code. how to replace thermostat? 2015 jeep wrangler P0128 replace thermostat 2.4l jeep dodge chrysler by the book. part 1Jeep wrangler p0128: coolant thermostat - below temp.