P0128 jeep

Parts I used:Jeep Grand Cherokee Thermostat https://amzn.to/2tHPqXiCheck Engine Light P0128 Jeep Grand Cherokee Thermostat Replace. Step by step how to. Part...

P0128 jeep. 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.

Sep 30, 2022 · To diagnose the P0128 Cadillac 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.

Fixing P0128 in the Chrysler 300 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 ...P0128 Definition: Coolant Temp – Below Thermostat Regulating Temp. The P0128 OBD-II trouble code is a generic powertrain diagnostic code (it has the same meaning for the Ford F350 as any other vehicle). Coolant Temperature. The coolant temp sensor is responsible for telling the Engine Control Module (ECM) the engine’s coolant temperature.Jul 31, 2021 · We found a couple of Chrysler technical service bulletins for several Jeep and Dodge models that recommend reprogramming the PCM (engine computer) if the code P0128 is diagnosed. Another Chrysler TSB for 2009-2010 Dodge Challenger and 2008-2010 Dodge Magnum/Charger and Chrysler 300 describes a problem where the thermostat may move out of place ... A P0128 code in a Jeep is caused by an engine coolant temperature (ECT) sensor that is not reaching the predetermined temperature within a certain amount of time. You’ll also notice this in other vehicles besides Jeeps, such as the P0128 code in a Honda Civic. The ECT sensor monitors the engine’s operating temperature and sends a signal …The P0128 code in a Jeep Compass is a common issue that many owners might encounter. This diagnostic trouble code (DTC) is related to the engine's cooling system, specifically indicating that the coolant temperature is below the thermostat regulating temperature. In simpler terms, your Jeep's engine isn't reaching its optimal operating ...P0128 Definition: Coolant Temp – Below Thermostat Regulating Temp. The P0128 OBD-II trouble code is a generic powertrain diagnostic code (it has the same meaning for the Ford F350 as any other vehicle). Coolant Temperature. The coolant temp sensor is responsible for telling the Engine Control Module (ECM) the engine’s coolant temperature.P0128 code indicates that the engine is running cooler than it should, which can affect fuel economy and cabin heating. Learn how to diagnose and repair …

Low coolant levels, a stuck engine coolant thermostat, and issues with the coolant temperature sensor or its wiring can cause code P0128. Symptoms of the P0128 …When the coolant does not reach the optimum temperature, it can cause poor engine performance and bad fuel economy. Since this often indicates a problem with the thermostat, regardless if you are driving a Dodge, a Ford, or a Jeep, the P0128 code is likely to appear once your coolant thermostat or temperature sensor fails.I picked up this morning at 10 am, paperwork states malfunction indicator lamp is on, found fault code P0128 logged indicating an issue detected in the thermostat system. Performed software upgrade on the PCM per TSB# 18-061-16. From the dealer to McDonalds for breakfast to my home was approximately 15 miles. I parked my Jeep and …Nov 28, 2023 · P0128 is a common diagnostic trouble code for BMW vehicles, indicating a low coolant temperature, which could be caused by a faulty thermostat or a coolant leak. To diagnose and fix this issue, follow these steps: 1. Check the coolant level and condition: Make sure the coolant level is topped up and inspect the coolant for any signs of ... The P0128 code on a 2015 Jeep Wrangler typically indicates a problem with the engine coolant temperature. To fix this issue, it is recommended to first check the coolant level and ensure it is at the proper level. If the coolant level is low, topping it off may resolve the issue. However, if the coolant level is fine, the thermostat may need to ...21. Location. Louisiana. Jan 6, 2023. #1. I need a reliable and quick response to my concern. My check engine light is on and I checked for the code. It shows me the P0128 code related to the coolant system running low temperature. I read somewhere that the risk is low, but should get it checked out within a month.

=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0128 Saving Repair Part...To diagnose the P0128 Cadillac 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.Fixing P0128 in the Chevy Monte Carlo 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 ...I had P0128 - "Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)" fault code for about 2 weeks and I reset with Torque app. SES light would not disappear immediate after resetting but disappeared after two days. Since then SES never came back.

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Fixing P0128 in the Buick Encore 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 ...What the P0128 code means. The P0128 code means that the engine coolant is not getting warm enough, fast enough. In other words, there is a problem with the engine operating temperature not being reached within a certain amount of time. The Engine Control Module (ECM) determines this length of time based on ambient …Whether you’re in the market for a mid-sized SUV or want to learn more about the Jeep brand, this simple guide will help you gain a basic understanding of the Jeep Grand Cherokee. ...The P0128 code on a 2015 Jeep Wrangler indicates a potential issue with the engine coolant temperature (ECT) sensor. This subheading will delve into the details of what the code means and why it is important to address it promptly. Engine coolant temperature (ECT) sensor: This sensor is responsible for measuring the temperature of the engine ...The most common symptom of a P0128 trouble code in a Jeep Liberty 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 Liberty is the lack of heat. When the thermostat …

P0128 code. 2016 Overland. Got one of these this morning on the way to work. Jeep had been running for 25 minutes at that point and was up to temp. Basically, I'd like to deal with this myself--I've got the super MaxCare warranty, but I JUST got this thing back from the last issue, and they had it for four months.P0128 JEEP Code - Engine Temperature takes to long to reach Operating Temperature For taking to long to warm up, the first thing everyone suspects id the thermostat, but in my experience if the engine is reaching full operating temp it isn't the thermostat, something is causing the engine to take longer than normal to warm up. ...Oct 5, 2022 · We go over how to diagnose and repair the P0128 DTC in your Jeep Grand Cherokee/ Dodge Durango WK2 with the 3.6 liter pentastar engine!Here is a link to my a... 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.As Tim suggests, clearing the code doesn't solve the problem if it's not a random positive. The engine temperature gauge is fine. Based on the information that you've provided so far (and using Tim's link as a reference), it seems likely that you have either a bad engine coolant temperature sensor.The implication from your PS is that the car is, in fact, …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 coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating ...When you need to locate a dealer that sells or services Jeep vehicles, there are a few ways to find one. You can search through the Jeep website, a partner website, online sources ...The most common symptom of a P0128 trouble code in a Jeep Grand Cherokee 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 Grand Cherokee is the lack of heat. When the thermostat ...The Jeep Renegade (BU) is a subcompact crossover SUV from the Jeep division of Fiat Chrysler Automobiles. It is built in Melfi, Italy alongside the related Fiat 500X, with which it shares its platform. ... It's been a good vehicle except for a continued issue related to P0128 fault code. The code first showed up about a year and a half ago ...Countryside Jeep Tours From Hanoi To The Co Loa Villages. Overview We will go to the outskirts of Hanoi to see typical local communities in the countryside of Northern …Meaning. In essence, the P0128 trouble code means that the engine coolant is not getting warm enough, quickly enough. What this boils down to is that there is a problem with the engine not reaching its operating temperature within a certain amount of time. The engine control module ( ECM) is what determines and governs the length of time that ...

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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 coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating temperature. How to Replace a …Fixing P0128 in the Nissan Altima 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 ...Key Takeaways: The P0128 code indicates a problem with the coolant thermostat.; Understanding the meaning, diagnosis, and repair options for this code is crucial for quick and efficient resolution. The common causes of the P0128 code include a faulty thermostat, low coolant levels, and a malfunctioning coolant temperature sensor.; Diagnosing the …Feb 8, 2022 · P0128 Jeep Wrangler coolant sensor replace diy. Code P0128 could be either the thermostat or the coolant sensor .Today I replaced the coolant sensor on our 2... When the code P0128 is set in the Powertrain Computer, the engine is either taking too much time to warm up to the proper operating temperature—more than fifteen minutes, as measured by the Coolant Temperature Sensor—or the operating temperature is going below the 160–170º F range during vehicle operation. This causes the Fuel System to ...Countryside Jeep Tours From Hanoi To The Co Loa Villages. Overview We will go to the outskirts of Hanoi to see typical local communities in the countryside of Northern …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 coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating ...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 …12. 532 views 3 months ago. If the check engine light is on in your jeep, dodge, chrysler, ram, I'll bet it's for this super common issue. It will come up with P0128 …

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Nov 21, 2018 · 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 coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating ... Oct 5, 2022 · We go over how to diagnose and repair the P0128 DTC in your Jeep Grand Cherokee/ Dodge Durango WK2 with the 3.6 liter pentastar engine!Here is a link to my a... The intent of the P0128 Mercedes code is to indicate a faulty thermostat. Similar codes: P0125 Mercedes In determining the engine did not reach a “normal” temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading ...1) 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).Medicine Matters Sharing successes, challenges and daily happenings in the Department of Medicine Join the dedication via this link. A wonderful and "signal" event for Johns Hopkin...The most common cause for the P0128 code on a Jeep Grand Cherokee is a faulty thermostat. A faulty thermostat can be what is described as a "stuck open thermostat." Other issues can be low coolant, a bad radiator fan or water pump, an inaccurate engine coolant temperature sensor (ECT sensor), or a bad engine control …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 ...Feb 22, 2022 ... Replacing the thermostat and housing. Part number: 0518 4651 AH P0128 trouble code When you click on links to various merchants on this site ...May 11, 2023 · To diagnose the P0128 2016 Chevrolet Silverado 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. We got this 2015 jeep wrangler here with check engine light code p0128 Thermostat below temp. I will show you step by step how to change the thermostat and f... ….

P0128 JEEP Code - Engine Temperature takes to long to reach Operating Temperature For taking to long to warm up, the first thing everyone suspects id the thermostat, but in my experience if the engine is reaching full operating temp it isn't the thermostat, something is causing the engine to take longer than normal to warm up. ...To make sure the plant is properly watered, take a section of PVC pipe and put it in the center of the planter. Expert Advice On Improving Your Home Videos Latest View All Guides L...Apr 25, 2024 · Repair Costs for P0128. Fixing the P0128 engine code may cost roughly $150-$500 based on your car’s make and model, the repairs, labor rates, etc. For instance, replacing the ECT sensor may cost $200-$400. This includes labor, typically around $100-$150, and the cost of the sensor itself, which can range from $5-$250. The most common symptom of a P0128 trouble code in a Jeep Commander 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 Commander is the lack of heat. When the …In this video we replace Eugene's thermostat due to a check engine code of P0128.Fixing P0128 in the Ford Explorer 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 ...Jan 2, 2024 ... Error code P0128 indicates that your engine coolant temperature is below the thermostat regulating temperature. This means that your Engine ...What benefit does the mockingbird get from copying another bird's calls? HowStuffWorks talks to the bird experts to find out. Advertisement What do Arkansas, Florida, Mississippi, ...Jan 21, 2024 · The Honda Code P0128 is a diagnostic trouble code that indicates a problem with the engine coolant temperature sensor or thermostat. This code means that the engine is not reaching the proper operating temperature within a specified time frame. This issue can result in decreased fuel efficiency, poor engine performance, and increased emissions. Fixing P0128 in the Dodge Journey 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 ... P0128 jeep, The P0128 code indicates an issue with your engine coolant temperature, which can lead to many problems. Learn the possible causes and solutions for this …, The most common cause for the P0128 code on a Jeep Wrangler is a faulty thermostat. A faulty thermostat can be what is described as a "stuck open thermostat." Other issues can be low coolant, a bad radiator fan or water pump, an inaccurate engine coolant temperature sensor (ECT sensor), or a bad engine control module. Check Out The Latest Price!, Fixing P0128 in the Hummer H3 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 …, We go over how to diagnose and repair the P0128 DTC in your Jeep Grand Cherokee/ Dodge Durango WK2 with the 3.6 liter pentastar engine!Here is a link to my a..., Nobody likes a warm, wilted salad. If you want your homemade salads to be as crisp and refreshing as the ones you get at a restaurant, try this trick. Nobody likes a warm, wilted s..., CKE CUSTOMER STATES THE CHECK ENGINE LIGHT IS ON. CHECK AND REPORT. 453 WEXP (N/C) PARTS: 0.00 LABOR: 0.00 OTHER: 0.00 TOTAL LINE A: 0.00. 9993 SDS TEST CODE PO 12800 R48 THERMOSTAT PERFORM TEST THERMOSTAT. HEATING ELEMENT OK PASS PERFORM AL20.10-P-063817 PROGRAM AIR. CONDITIONER AND ENGINE CONTROL UNIT. Like., Jan 20, 2022 · The first and most common cause for the P0128 code is a faulty thermostat. The thermostat can get stuck in an open position, preventing the coolant from ever reaching the optimal operating temperature. However, you should check the coolant level first as it can also trigger the P0128 fault code. While you’re at it, make sure that your car is ... , P0128 Definition: Coolant Temp – Below Thermostat Regulating Temp. The P0128 OBD-II trouble code is a generic powertrain diagnostic code (it has the same meaning for the Ford Expedition as any other vehicle). Coolant Temperature. The coolant temp sensor is responsible for telling the Engine Control Module (ECM) the engine’s …, Nov 21, 2018 · Fixing P0128 in the Chrysler 200 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 ... , Nov 28, 2023 · P0128 is a common diagnostic trouble code for BMW vehicles, indicating a low coolant temperature, which could be caused by a faulty thermostat or a coolant leak. To diagnose and fix this issue, follow these steps: 1. Check the coolant level and condition: Make sure the coolant level is topped up and inspect the coolant for any signs of ... , The cost to diagnose the P0128 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., 2008 Jeep Liberty Auto Trans 1988 E-150 4.9L 5 Speed Stick God Bless Our Troops. ... I've got the P0128 Code. I ordered a digital laser infrared thermometer and will check the temp at the thermostat housing. I need the thermometer for other things, so the time was right ($14 on Amazon). I will check on Friday and if the temp is reading 195 …, When the coolant does not reach the optimum temperature, it can cause poor engine performance and bad fuel economy. Since this often indicates a problem with the thermostat, regardless if you are driving a Dodge, a Ford, or a Jeep, the P0128 code is likely to appear once your coolant thermostat or temperature sensor fails., Fixing P0128 in the Nissan Versa 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 ..., Causes of P0128 Code. 1) Faulty Thermostat. 2) Insufficient Coolant. 3) Bad Coolant Temperature Sensor. 4) Damaged Wires. 5) Faulty Radiator Fan. 6) Bad Intake Air Temperature Sensor. 7) Coolant Flow Restriction. 8) Contaminated Coolant., "Chinese people can also save the world." In the film Wolf Warrior 2, Leng Feng, a former special forces operative, is on a one-man mission to save Chinese nationals and innocent l..., codes P013A and P0128 2007 Jeep Commander 5.7 Hemi My Jeep is throwing those codes, but only in cold weather. After the fist time the Check Engine light came on I had the coolant checked when I had an oil change. , P0128 Definition: Coolant Temp – Below Thermostat Regulating Temp. The P0128 OBD-II trouble code is a generic powertrain diagnostic code (it has the same meaning for the Ford F350 as any other vehicle). Coolant Temperature. The coolant temp sensor is responsible for telling the Engine Control Module (ECM) the engine’s coolant temperature., OBD2 Code P0128 BMW definition: This means that the engine’s PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 BMW code is to indicate a faulty thermostat. Similar codes: P0125 BMW In determining the engine did not reach a “normal ..., What Does p0128 Jeep Grand Cherokee mean? The basic meaning of p0128 is the issue with the coolant thermostat temperature. When this code is triggered, the coolant thermostat temperature is below the regulating temperature. The primary cause for this DTC can be an open thermostat, damaged wearing, or a faulty coolant temperature sensor., You may find a Jeep P0128 –P0128-THERMOSTAT RATIONALITY trouble code on your Jeep, Dodge or Chrysler product. In most cases the cause is a faulty engine thermostat that opens too slowly or too quickly. To determine when to set the Jeep P0128 trouble code, the PCM tries to predict what engine coolant temperature should be based …, P0128 Jeep Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. Home JeepP0128 Jeep DTC P0128 Make: Jeep Code: P0128 Definition: Thermostat Rationality Description:, Mar 3, 2022 · 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! , The Jeep power train control module (PCM)--or computer, as it is known in layman’s terms--controls the vehicle’s ignition, emission and fuel systems, along with other auxiliary sys..., Sep 30, 2022 · To diagnose the P0128 Cadillac 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. , What Does p0128 Jeep Grand Cherokee mean? The basic meaning of p0128 is the issue with the coolant thermostat temperature. When this code is triggered, the coolant thermostat temperature is below the regulating temperature. The primary cause for this DTC can be an open thermostat, damaged wearing, or a faulty coolant temperature sensor., Before getting into in-depth knowledge about the P0128 Code, first of all, know what does a P0128 means and how it works in your car. Don’t worry we are here to explain how long can you drive with a P0128 code. P0128 is telling your fix sensor that your car’s coolant thermostat is operating below the regulating temperature., How to Fix a Dodge, Chrysler & Jeep P0128 engine code: Thermostat Rationality or Coolant thermostat – coolant temperature below the thermostat regulating tem..., Dec 13, 2022 · 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 coolant to flow through the engine at all times. When this happens, the engine is “over-cooled” and never reaches the proper operating temperature. How to Replace a Thermostat (video). , The Jeep Wrangler is a car that bills itself on its fearless character. Jeep has sought to portray the car as the ultimate vehicle for adventure seekers who love exploring the unch..., Code P0128 is most likely caused by one of the following: (1) Improper coolant level/mixture (2) Faulty cooling fan (3) Faulty coolant temperature sensor (ECT) (4) Stuck open thermostat. What are the symptoms of code P0128? The description for code P0128 is “coolant thermostat (coolant temperature below thermostat regulating temperature).”, 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 …, Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code.