Jeep code po128 - What is P0128 Jeep JK Diagnostic Code? This is a DIY video for Jeep JK Thermostat Replacement...Parts:1) Mopar Thermostat w/housing - https://www.amazon.com...

 
A PO128 code in a Jeep can be caused by a faulty coolant temperature sensor, a malfunctioning thermostat, or other related issues. Diagnostic and Repair Procedures for a PO128 Code. To diagnose and repair a PO128 code in a Jeep, it is recommended to start by checking the coolant level and inspecting for any leaks.. Is ga ebt down

Code P0128 came up and he told me he would need to replace the thermostat and housing since there were cracks and coolant was seeping. I tried reading up on the issue and watched some YouTube videos on how to replace so I am debating whether I should try to do the job myself or leave it to the mechanic.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. My problem is I’m in Tennessee and …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 ...Jeep code P0128 refers to a diagnostic trouble code related to the cooling system of a Jeep vehicle. It indicates that the engine coolant temperature has not reached the expected operating temperature within a specified time after starting the engine. The Jeep code P0128 is a generic code, meaning it is applicable to various Jeep models and ...Mar 4, 2022 · 2016 wrangler p0128. Got a 2016 wrangler with the 3.6l getting a code p0128. question the temp sensor cause it warms up fast and is normal on the gauge dash says 190 normal driving but got up to 220 today sitting and the fan never kicked on. Question is what is the normal operating temperature saw somewhere the fan won’t kick on till 240? Error code P0128 indicates a problem with the coolant temperature sensor or thermostat in your Jeep. While it may not cause immediate damage, if left unresolved, it …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 …To use remote start on a Jeep Cherokee, press and release the remote start button on the transmitter two times within five seconds. The vehicle’s doors lock, the parking lights fla...What Does P0128 Jeep Grand Cherokee Code Mean? P0128 is a generic trouble code that indicates your Grand Cherokee’s engine coolant temperature hasn’t reached the required temperature within a specific time after starting the engine. This denotes a faulty thermostat with an open circuit. This code is stored when the Engine …CODE P0128 JEEP COMPASS RENEGADE FIX. THERMOSTAT RATIONALITYIf you Jeep Compass or Renegade and you have engine light on and code P0128 we will show what usu...Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code.Replacing parts related to code PO128 problems can be a daunting task, as was diagnosing the P0128 code in a Jeep. This code indicates that the engine coolant temperature is below normal operating temperature. It is important to understand what needs to be done to properly diagnose and repair this issue. The first step in diagnosing …2016 JKUHR Billet Silver M/T - (current odometer 54k, paid $35,500 OTD with 13.3k miles on 2/17/2018) - AEV 2.5 + Geo - Milestar 315 Patagona Mt's - Pro Comp 7069 FB Wheels - Rugged Ridge Hurricane Fender Flares - Poison Spider Bruisers and Rocker Knockers - RR Pioneer Platform - Bushwacker Sill Plate - Rigid Ds - Warn VR10 …Feb 17, 2013 · The code means it is not reaching proper temp or not fast enough. The IAT sensor could be bad especially if you are in a cold climate. Read this link, it may help. OBD-II Trouble Code: P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) '05 Rubi TJ Unlimited. '93 Toyota 4Runner. Like. Modern versions of the Jeep include the Grand Cherokee, Wrangler, Compass, Patriot and Renegade. There have been many different model types of Jeep produced since its invention dur...Feb 26, 2019 · How to replace a thermostat. 2.4L, & 2.0L. 2014-2018 Jeep Cherokee, and 2013-2016 Dodge dart uses the same part. Same engine. Car had check engine light on. ... 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...P0128 Jeep Diagnostic Trouble Code (DTC) Definition, Causes and DiagnosisAvoid getting caught out by getting to know more about The Google Voice Vertification code scam. Here's everything you need to know. Scammers target people in a variety of ways. Th...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 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.Diagnosing and troubleshooting the PO128 code in a Jeep Wrangler typically involves the following steps: Scan for codes: Use an OBD-II scanner to retrieve the fault codes stored in the vehicle’s ECM, including the PO128 code. Inspect the ECT sensor: Check the ECT sensor for any physical damage or signs of corrosion.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.The best online medical billing and coding schools award an associate degree and prepare you for certification at a flexible pace and affordable rate. Written by TBS Staff Writers ...Contact details, email and telephone number of authorised Jeep Kolkata workshop and service centers. You may also contact Kolkata Jeep dealer for more information. Jeep …Quick, unedited cell phone video covering P0128 Data Trouble Code (DTC) on 2013 Jeep Wrangler JKUR w/3.6L V6 caused by a faulty thermostat tripping Check Eng...Nov 24, 2022 · After 500 Miles. You should only travel with the DTC code p0128 for 500 miles. During the distance, the car will not have much damage and risks. However, some people would travel more than 500 miles, which may cause car problems. It is not safe to go more than 1000 miles. Feb 3, 2021 · Marissawalkerjones94 Discussion starter. 1 post · Joined 2020. #1 · Feb 3, 2021. I have a 2015 Jeep Wrangler with thermostat rationality throwing a code on my jeep. The tech said it could just be a sticking thermostat but upon reading it could be an engine coolant temp sensor. My temp runs normal on my jeep, & everything runs normal. Yes, your code is the engine coolant is too slow to reach operating temp. The temperature on the gauge is running around 200 and sometimes up to 210 in stop and go traffic in hot weather. 210 is the correct temp, but the code indicates it is taking too long to get there. I will try another thermostat.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...Music has long been shown to boost both cognitive performance and productivity. These are the most popular songs to code to. Music has long been shown to boost both cognitive perfo...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 ...My 2012 Sahara unlimited 3.6 V6 is throwing the code PO128-Coolant thermostat--Coolant temp below thermostat regulating temp, Bad ... Previous Jeeps: 84 CJ7 (A True Jeep), 2000 XJ (163,000 Miles/Totaled (Pictures of wrecked Jeep in gallery)), 2004 WJ (parting out die to major electrical issues) If you don't have time to do it ...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.Jeep code P0128 indicates that the engine coolant temperature is lower than the thermostat regulating temperature. It indicates that the engine is running colder than it should. Use the Way App to find the best gas discounts , EV charging near you , auto insurance , auto refinance , and more!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 code include an illuminated check engine light, longer warm-ups, and significantly decreased engine temperatures while driving on a highway. Contentshide.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 …Jun 17, 2023 · 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! 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 …VAHAN 4.0 (Citizen Services) ~onlineapp01~135~8000 vahan.parivahan.gov.in (Build Version:050320241330)After 500 Miles. You should only travel with the DTC code p0128 for 500 miles. During the distance, the car will not have much damage and risks. However, some people would travel more than 500 miles, which may cause car problems. It is not safe to go more than 1000 miles.The P0128 code is a diagnostic trouble code (DTC) for "Engine Coolant Temperature Below Thermostat Regulating Temperature." This code indicates that the engine coolant temperature is not getting hot enough, fast enough. The thermostat is designed to open at a specific temperature to allow coolant to flow and to close when the …To reset the p0128 code on a jeep wrangler, disconnect the battery for a few minutes and then reconnect it. When the code reappears, it indicates a persistent issue that needs to be fixed. The p0128 code is related to the engine coolant temperature being below the expected range. This could be caused by a faulty thermostat, a coolant leak, or a ...Please help support this channel by any means such as word of mouth, sharing the links, or by donations. For donations please click on: https://www.paypal.me...Feb 22, 2024 · Code Number Code Description Related Codes; P0128: Coolant Thermostat (Below Regulating Temperature) P0125 - Insufficient Coolant Temperature P0127 - Intake Air Temperature (IAT) Too High 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".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 ...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.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 Jeep code is an engine-related fault code that signifies an inadequate coolant mixture/level or a malfunctioning thermostat. Symptoms include: An activated CEL. Starting and performance issues. …The P0128 code can be set while the PCM is monitoring engine warm-up. The PCM draws from a few key pieces of data during this time to maximize engine efficiency, including the Engine Coolant ...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.Car stereos that come equipped with anti-theft systems may require a reset of the security code. In the event the battery is disconnected from the unit (the result of failure or re...The P0128 code can also be triggered by malfunctions in the engine coolant temperature sensor or its circuit. If the sensor is sending incorrect readings to your engine control module, it may think that the engine is running at a lower temperature than it actually is. This can cause the P0128 code to be triggered. Overall, there are several potential …How to Fix a Dodge, Chrysler & Jeep P0128 engine code: Thermostat Rationality or Coolant thermostat – coolant temperature below the thermostat regulating tem...P0128 coolant temp below thermostat/regulating temp. 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 code is to indicate a faulty thermostat. Similar codes: P0125.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.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 temperature.How to Fix a Dodge, Chrysler & Jeep P0128 engine code: Thermostat Rationality or Coolant thermostat – coolant temperature below the thermostat regulating tem...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 thermostat doesn’t ...P0128 can be caused by a bad thermostat OR the Coolent Temperature Sensor being faulty. After much research, I decided it was the sensor, not the thermostat. Depending on whether you have a 3.6 or 3.8, the sensor is either right next to the thermostat (replace from above) or in the block near the firewall on the driver's side (replace through ...CODE P0128 P0126 DODGE DART, CHRYSLER 200, JEEP CHEROKEE COMPASS RENEGADE, RAM PROMASTER CITY, FIAT 500X, FIAT TOROIf you have engine light on and code P0128...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 code include an illuminated check engine light, longer warm-ups, and significantly decreased engine temperatures while driving on a highway. Contentshide.15494 posts · Joined 2006. #3 · Aug 6, 2009. A code P0128 may mean that one or more of the following has happened: Low engine coolant level. Leaking or stuck open thermostat. Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor. Faulty intake air temperature (IAT) sensor. Past experience indicates that the most likely ...P0128 Jeep Wrangler thermostat and housing replace diy. Code P0128 could be either the thermostat or the coolant sensor .Today I replaced the thermostat on o...P0128 can be caused by a bad thermostat OR the Coolent Temperature Sensor being faulty. After much research, I decided it was the sensor, not the thermostat. Depending on whether you have a 3.6 or 3.8, the sensor is either right next to the thermostat (replace from above) or in the block near the firewall on the driver's side (replace through …CODE P0128 JEEP COMPASS RENEGADE FIX. THERMOSTAT RATIONALITYIf you Jeep Compass or Renegade and you have engine light on and code P0128 we will show what usu...OK, I just installed new "MoPar" thermostat after getting the PO128 code. Also decided to drain what I could of the 14 quarts listed in manual from lower hose. Was not able to flush completely but the 2 gallons of fluid removed looked new and 2014 WK only has about 70K so thought that should be fine.18 Aug 2023 ... check engine codes to you! In this video, Eric the Car Guy checks out code P0128, which usually has to do with the coolant thermostat. The ...2016 jeep cherokee latitude 2.4 thermostat removal.code po128. 2016 jeep cherokee latitude 2.4 thermostat removal.code po128.The P0128 code can also be triggered by malfunctions in the engine coolant temperature sensor or its circuit. If the sensor is sending incorrect readings to your engine control module, it may think that the engine is running at a lower temperature than it actually is. This can cause the P0128 code to be triggered. Overall, there are several potential …The P0128 Jeep code is an engine-related fault code that signifies an inadequate coolant mixture/level or a malfunctioning thermostat. Symptoms include: An activated CEL. Starting and performance issues. …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.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.Feb 26, 2019 · How to replace a thermostat. 2.4L, & 2.0L. 2014-2018 Jeep Cherokee, and 2013-2016 Dodge dart uses the same part. Same engine. Car had check engine light on. ... Please help support this channel by any means such as word of mouth, sharing the links, or by donations. For donations please click on: https://www.paypal.me...No, a Jeep code P1698 cannot be cleared without fixing the underlying issue. Is there a technical bulletin or recall related to Jeep code P1698? There is currently no specific technical bulletin or recall related to Jeep code P1698 reported in Popular Mechanics Magazine.P0128 Jeep Wrangler thermostat and housing replace diy. Code P0128 could be either the thermostat or the coolant sensor .Today I replaced the thermostat on o...Oct 28, 2023 · How to Diagnose P0128 Thermostat Issues on a Jeep? When your Jeep has a P0128 code, use these steps to diagnose the root cause: Use an OBD2 Scanner Tool. Plug in a diagnostic scan tool to pull the P0128 code and any other related trouble codes from the engine control module (ECM). This will confirm the issue is a faulty thermostat regulation one. After 500 Miles. You should only travel with the DTC code p0128 for 500 miles. During the distance, the car will not have much damage and risks. However, some people would travel more than 500 miles, which may cause car problems. It is not safe to go more than 1000 miles.How to Diagnose P0128 Thermostat Issues on a Jeep? When your Jeep has a P0128 code, use these steps to diagnose the root cause: Use an OBD2 Scanner Tool. Plug in a diagnostic scan tool to pull the P0128 code and any other related trouble codes from the engine control module (ECM). This will confirm the issue is a faulty thermostat regulation one.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".How to quickly diagnose, repair, and info on symptoms and causes of a P0128 code which generally indicates a failed thermostat. www.obd-codes.com. 2015 2dr Sport. Rubicon springs and shocks take offs for 1 1/2 inch lift. Auto. Regeared Yukon 4:11, 33" duratracs ACE front and rear bumpers. 2004 Rubicon.2016 jeep cherokee latitude 2.4 thermostat removal.code po128. 2016 jeep cherokee latitude 2.4 thermostat removal.code po128.Back in the fall, the P0128 code came up and I changed the Termostat. All was well. Fast forward to now - The P0128 Code came back up along with the P2181 and the P0118 Code. The Check Engine Light is on, and the temperature gauge is showing very low temp and the fan is constantly running. Sometimes the engine doesn't start right …Feb 3, 2021 · Marissawalkerjones94 Discussion starter. 1 post · Joined 2020. #1 · Feb 3, 2021. I have a 2015 Jeep Wrangler with thermostat rationality throwing a code on my jeep. The tech said it could just be a sticking thermostat but upon reading it could be an engine coolant temp sensor. My temp runs normal on my jeep, & everything runs normal. Feb 17, 2013 · The code means it is not reaching proper temp or not fast enough. The IAT sensor could be bad especially if you are in a cold climate. Read this link, it may help. OBD-II Trouble Code: P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) '05 Rubi TJ Unlimited. '93 Toyota 4Runner. Like. 2. The next cause is a problem with the engine coolant temperature sensor or the wiring associated with the sensor. There are two main symptoms for the P0128 code: 1. Heater is not hot enough due to the coolant temperature in the engine being low 2. Car takes too long to warm up, or the temperature gauge does not go up as high as it used to. 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...Make: Jeep. Code: P258B. Definition: Electric Vacuum Pump Performance. Description: The Electric Vacuum Pump (EVP) system is installed to provide supplemental vacuum to the brake booster, when the engine vacuum supply is low. The pump is connected to the engine and the brake booster through a series of hoses and one-way flow check valves.

May 11, 2023 · Best Solutions for the P0128 Code. You can try several solutions to fix the P0128 code in your Jeep. Replace the Thermostat. It must be replaced if a faulty thermostat is causing the P0128 code. A new thermostat will regulate the flow of coolant and help maintain the proper engine temperature. Check and Refill Engine Coolant . 2022 topps gallery mega box

jeep code po128

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. My problem is I’m in Tennessee and …Its a 10mm and about 2 minutes of time to unhook a battery cable, thermo was stuck wide open as they are designed to fail that way and not closed. Heater will cook a steak with a new one installed. Reset it and forget about it, ive done a few of these over the years, always a p0128 especially if you let it idle before you drive it.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... No, a Jeep code P1698 cannot be cleared without fixing the underlying issue. Is there a technical bulletin or recall related to Jeep code P1698? There is currently no specific technical bulletin or recall related to Jeep code P1698 reported in Popular Mechanics Magazine.Nov 5, 2018 · 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 thermostat doesn’t ... 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 ...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...Fixing P0128 in the Jeep Cherokee 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 ...7 posts · Joined 2010. #1 · Jan 26, 2011. I just received diagnostic code P0128 while driving home. From my search I understand it is an issue with the thermostat or coolant. Which makes sense as the following has played out in the last few days: 4 days ago I noticed my coolant level was about a half inch below the minimum line on the coolant ...The Code of Hammurabi is an important artifact because it sheds light on laws in Babylonia. Learn why the Code of Hammurabi explains "an eye for an eye." Advertisement When we thin...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 …19 Apr 2019 ... Comments18 ; P0128 Chrysler 3.2/3.6 Pentastar engine thermostat code, Top 3 causes. MotorCity Mechanic ; DTC P0128 How to replace the thermostat ...A P0128 is a code is an indication of a faulty thermostat or ECT (engine coolant temp sensor). The manufacture designs the engine to run at a specific operat...i was just driving about 10 minutes ago and my engine light came on, and the code was P0128-THERMOSTAT RATIONALITY, my mods are intake, 3 in. SEE no cat, and motor mounts, im just stumped what this code means, any help would be great! Save Share. Like. Sort by Oldest firstI 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 walked over to ...A P0128 is a code is an indication of a faulty thermostat or ECT (engine coolant temp sensor). The manufacture designs the engine to run at a specific operat....

Popular Topics