Jeep jk code p0128 - 2013 JK with Mopar 2in lift on Pinter Silver wheels with BF KO2 35in. Save Share. Like. ... 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. ... A forum community …

 
4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Wrangler’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the .... Dominican hair salon in lithonia

AUBURN HILLS, Mich., March 23, 2023 /PRNewswire/ -- Trail badge secured! The final grouping of Jeep® brand and Jeep Performance Parts by Mopar con... AUBURN HILLS, Mich., March 23,...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 ...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-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).Code c1252/traction control light intermittently on. I’ve got a 2016 rubicon hard rock and my traction control light is randomly coming on. Usually once every other week, comes on upon startup. Won’t go off on it’s own, but if I turn off vehicle and turn it back on it will be gone. Got a code reader, was surprised to find it wasn’t a ...1. What does the Jeep JK code P0128 indicate? The Jeep JK code P0128 is a Diagnostic Trouble Code (DTC) that indicates a problem with the Engine Coolant …P0128 - Thermostat Repalcement Question. 2013 JK. Recently started getting cold here in Texas. Had the Check Engine light come on with this stupid code. Reset, warmed up and code did not come back. Got cold again and it come on again, sot its on all the time. Did the research to the Thermostat and/ or the Temp Sensor on the side …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.P0128 Thermostat Rationality. P0128 JEEP. Description. Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine. Symptoms- CEL. Possible causes. - Insufficient warm up time. - Low engine coolant level. - Leaking or stuck open thermostat.2011 3.8L jeep jk. received P0128 code, replaced thermostat and ECT.. Hooked up a scanner and drove on highway 65mph, coolant temp readings fluctuate between 168 - 175. When stopped or at slower speeds temperature will rise but will suddenly decrease when speed picks up. Stopped and idled noticed fan kicked in and the scanner was only reading ...P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep Wrangler 3.6 Don't forget to like and sub! ... P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep …Below are the Diagnostic Trouble Codes ( DTC) that can be reported by the JK Onboard Diagnostic Computer. Refer to the simple Ingnition Key Procedure to read the codes from the dashboard. DTC codes are five characters long. The first character is a letter that identifies the system in failure: B – Body. C – Chassis. P – Power Train. U ...I just recently re-entered the Jeep world with a 2012 JKU sport auto. About two weeks ago while driving my jeep threw three codes. P0128 (coolant temp low), P0306 (misfire on cylinder 6) and random misfire. No real drivability problems other than a slight bog when the jeep shifted into third gear.P0128 isn’t the worst code out there, but you should still have a professional mechanic check your car ASAP. Doing so assures you that your vehicle is always operating at its best, while ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0128 Saving Repair Part...Overview on how to replace the thermostat on 2012 - 2017 Jeep Wranglers with 3.6L engine. This had the P0128 code. Hardest part of the job is bleeding the ...Jun 20, 2021 ... Comments15 · 2014 Jeep Wrangler Thermostat and Coolant temperature sensor change ( Check engine code P0128 ) · 8 SIGNS OF BAD OR FAILING ...The code P0128 - Coolant Temperature Below Thermostat Regulating Temperature means that the engine does not reach expected temperature after running for sufficient time, or in other words, it takes too long to warm up. Often this code causes the Check Engine light to come on and off in cold temperatures. Symptoms: With the code …A new study from MartizCX shows that the Ford F-150 pickup truck, Jeep Grand Cherokee, Jeep Wrangler, Honda Pilot, and Honda Civic are the top car choices by rich Americans. By cli...P0128 Code - How To Replace Jeep Wrangler Coolant Sensor, Thermostat & Bleeding Coolant System - YouTube. Just Empty Every Pocket. 2.52K subscribers. …2016 JKUHR Billet Silver M/T - (current odometer 53k, 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-S - Teraflex HD Carrier,TB and SS - AEV Diff Covers - ARB Compact - 2x ...I need to get my inspection done but my CEL was on with p0128 code. I replaced the thermostat, drove a couple days and the CEL went off. Continued to drive for a few more days. I still cannot get inspected (NY) because the vehicle is showing a P0128 as a "stored" code (using Foxwell NT201 OBD reader), even though the CEL is off.Planning a move is difficult, but it can be far less so if you hire the right mover. Read our JK Moving Services review to learn about their services and costs. Expert Advice On Im...Take some time to learn more about a P0128 code – you’ll thank yourself later. Car Values. Price New/Used; My Car's Value; Instant Cash Offer; Cars for Sale. Cars for Sale; Free Dealer Price ... Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code. A thermostat when operating properly will start to open at 203° and will be fully opened at 215°. Most thermostats that fail, fail in the opened position. The engine runs to cold for to long, and then throws a code. Your engine cooling temp, must reach 160°, with-in 15 minutes, or it will throw a code..FYI.Jan 6, 2022 · 24 posts · Joined 2014. #1 · Jan 5, 2022. Hey everyone, I got a check engine light with the code of P0128 on my 2014 wrangler and going to replace the thermostat housing. I bought the mopar housing P/N: 5184651AH and a gallon of premixed coolant P/N: 68163849AB for $65 on amazon. I called the local dealership and a was quoted $107 for 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 ... 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 …P0128 Jeep Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. Home JeepP0128 Jeep DTC P0128 Make: Jeep Code: P0128 Definition: Thermostat Rationality Description: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?How to Fix P0128. Start with the easiest repair solution, which is low coolant levels. Before you start, turn off your engine and wait until it’s sufficiently cool to open your coolant reservoir. Under normal operation, a coolant system is pressurized. Opening a hot coolant system could cause burns and other injuries if you aren’t careful.2016 JK Rubicon Hard Rock Auto Trans 2008 Jeep Liberty Auto Trans 1988 E-150 4.9L 5 Speed Stick ... I'll post up if that's the corrective action for the P0128 code.Jan 27, 2023 · #1 · Jan 27, 2023. Got a check engine light a couple months ago. P0128. Since then, the CEL went away on its own. My Jeeps temp has been right in the center. No overheating. The air blows very hot from the vents. I have not had any heat issues before or after. What are your opnion's on this? Should I still replace the thermostat and coolant? How to fix p0118 p0128 for 2012 jeep Wrangler Sport Engine Coolant Temperature Sensor thermostatHow do I fix code P0118?What repairs can fix the P0118 code?R...Model Specific Jeep Discussions. Wrangler JK (Model years 2007–2018) JK Technical Discussion. JK code and replacing thermostat. Tags jku 2012 p0128 thermostat. Jump to Latest Follow 5K ... After jumping to a new tab I …2016 JK Rubicon Hard Rock Auto Trans 2008 Jeep Liberty Auto Trans 1988 E-150 4.9L 5 Speed Stick God Bless Our Troops. Reactions: Mntorres07. Save Share. ... That P0128 code is "thermostat rationality" or some such. To me, more indicative of a stuck thermostat than a cracked housing.Jan 24, 2024 · Jeep Error Code P0128 refers to a diagnostic trouble code that indicates a potential issue with the cooling system. When this code appears, it means that the engine coolant temperature does not reach the expected operating temperature within a specified time frame. ^!!! txt msgs r running language *ruining ^lol, jk!! :) In many casual discussions of language and the internet, it’s not uncommon to hear about how such “textspeak ruins language”...P0218 ‐ High Temperature Operation Activated. It has been anything but hot here, high in the upper 50s last two weeks. All fluids are at correct levels, fluids look clean and good. We did go wheeling last Saturday in the mountains but the highs were only around 45 and most of the wheeling was in the snow. I have 17,000 miles on it so it is ...To diagnose and troubleshoot the P0128 code in a Jeep JK, it’s recommended to start by checking the coolant level and ensuring there are no leaks. Next, inspect the ECT sensor and its wiring for any visible damage or loose connections. If necessary, test the thermostat and radiator fan functionality.Photomikes Garage. 15.7K subscribers. Subscribed. 566. 75K views 2 years ago MAPLE RIDGE. P0128 Jeep Wrangler coolant sensor replace diy. Code P0128 …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 ...Dec 20, 2014 · This code sets when the ECM sees that the engine takes to long to warm up. This usually happens because the thermostat is either stuck open or opening sooner than it should. It is a pretty global cause and correction for P0128 across many makes and models of vehicles. Replacing the T-stat should take care of this and you should not have any ... 1 post · Joined 2012. #11 · Feb 20, 2019. 2012 JKUR with the same problem. Check engine light and no codes either with my reader or the ignition key method. I had recently fueled up at a sketchy mini mart and thought that might be the culprit. Regardless, I checked the gas cap (was fine) and disconnected the battery for 10 minutes and the ...P0128 Thermostat Rationality. P0128 JEEP. Description. Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine. Symptoms- CEL. Possible causes. - Insufficient warm up time. - Low engine coolant level. - Leaking or stuck open thermostat.This code sets when the ECM sees that the engine takes to long to warm up. This usually happens because the thermostat is either stuck open or opening sooner than it should. It is a pretty global cause and correction for P0128 across many makes and models of vehicles. Replacing the T-stat should take care of this and you should not have any ...P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep Wrangler 3.6 Don't forget to like and sub! ... P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep Wrangler 3.6 ...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 …Nov 5, 2018 · Fixing P0128 in the Jeep Compass 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 ... Dec 20, 2014 · This code sets when the ECM sees that the engine takes to long to warm up. This usually happens because the thermostat is either stuck open or opening sooner than it should. It is a pretty global cause and correction for P0128 across many makes and models of vehicles. Replacing the T-stat should take care of this and you should not have any ... Postal ZIP Codes - ZIP codes are five digit numbers that represent specific locations in the United States. Learn about ZIP codes and find out why ZIP codes were created. Advertise...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 ...Nov 5, 2018 · Fixing P0128 in the Jeep Compass 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 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...Somewhere in between getting started with programming and being job-ready competent, you might experience the "desert of despair." Viking Code School explains why this struggle hap...It could take up to 100 miles, with multiple restarts included. Clear the codes with your Jscan, check for others and drive more.. This is not exclusively a Jeep situation had same on a Chev Equinox previously. Good Luck. Vaya Con Dios..1 JKU & 1 JT Mojave. JKU is mbr of Real Men Use 3 Pedals" Club.. 2013 JKU and 2021 Mojave..Possible Causes of Jeep code P0128. There are several potential causes for the Jeep code P0128, including: A faulty thermostat: The thermostat plays a crucial role in regulating the flow of coolant through the engine. If it is stuck open or partially open, it can prevent the engine from reaching the required operating temperature.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.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.Double failure monitoring to determine unique failure situations that could require unique limp-in functionality. The Diagnostic Trouble Code (DTC) sets when the failure is detected if the output speed gradient is less than a threshold for a calibrated amount of time. U1412 Jeep Code - Implausible Vehicle Speed Signal Received.Fixing P0128 in the Jeep Compass 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 ...To diagnose and troubleshoot the P0128 code in a Jeep JK, it’s recommended to start by checking the coolant level and ensuring there are no leaks. Next, inspect the ECT sensor and its wiring for any visible damage or loose connections. If necessary, test the thermostat and radiator fan functionality.CEL p0128 code 'coolant temp below thermostat regulating temp' ... 2016 JK Rubicon Hard Rock Auto Trans 2008 Jeep Liberty Auto Trans 1988 E-150 4.9L 5 Speed StickP0128 Jeep JK Diagnostic Code, Thermostat Replacement - YouTube. Check Details. P0455 Jeep Grand Cherokee Code Fix - YouTube. Check Details. P1281 P0128 Thermostat 1999 Jeep Grand Cherokee 4.0 inline 6 - YouTube. Check Details. DTC P0128 How to replace the thermostat on a 2.4L Jeep Dodge Chrysler.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.JKS: Get the latest JinkoSolar stock price and detailed information including JKS news, historical charts and realtime prices. Indices Commodities Currencies StocksJul 4, 2019 ... Diagnosis and fix for the p0113 CEL check engine light code for the 3.6L Pentastar engine for Jeep, Dodge, Chrysler, and Ram.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 reset the code. 5.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...Code Definition. P0128 – Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What Does the P0128 Code Mean? P0128 is a generic powertrain code that means the engine control module (ECM) detected that the motor hadn’t reached its required operating temperature within the required timeframe set by the manufacturer.2011 3.8L jeep jk. received P0128 code, replaced thermostat and ECT.. Hooked up a scanner and drove on highway 65mph, coolant temp readings fluctuate between 168 - 175. When stopped or at slower speeds temperature will rise but will suddenly decrease when speed picks up. Stopped and idled noticed fan kicked in and the scanner was only …Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...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 intoWalk 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 ...2016, 3.6 Check Engine light P0128 coolant temp code Jump to Latest Follow 7K views 15 replies 7 participants last post by KiwiScott Mar 31, 2022Do the following to fix Chevy code P0128. Check the coolant level: If the level is lower than the minimum, add more coolant and go for a short drive. If the code is still active, you must change the thermostat. Inspect the coolant temperature sensor: The primary coolant temperature sensor is in the cylinder head near the thermostat.CMSRock. 747 posts · Joined 2020. #13 · Jan 4, 2024. The p0128 shows up when the coolant temp doesn't come up fast enough or not at all, eventually depending on outdoor temp and travel speed it will get warm enough to bring up gage and give you heat but the code was set because it didn't warm up in the expected time.Turn on the motor and top off fluid as it fills in, once it doesn’t take no more close the radiator cap. Now let the motor run for a few minutes while it gets hotter and once 5-10 minutes have gone by turn it off and open the bleeder valve. This is how I’ve done it previously. Repeat the bleeder procedure twice or 3 times and you should be ...Frequently Asked Questions about the Jeep P0128 Code What is the normal engine operating temperature range? The normal operating temperature for the 3.6L Jeep JK Wrangler engine is around 195-220°F when warmed up and varying slightly based on operating conditions. If the PCM sees temperatures staying below 190°F, it will trigger the P0128 code.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.Code Definition. P0128 – Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) What Does the P0128 Code Mean? P0128 is a generic powertrain code that means the engine control module (ECM) detected that the motor hadn’t reached its required operating temperature within the required timeframe …Jan 20, 2022 · The generic P0128 code stands for “Engine Coolant Temperature Below Thermostat Regulating Temperature”. This basically means that the coolant in the engine isn’t reaching the ideal operating temperature and that the engine is essentially running cold. While it’s not as bad as having the engine run too hot (for obvious reasons), a cold ... 2013 Jeep Wrangler Coolant Temp Sensor Replacement=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code JEEP P0522 Saving Repair ...Aug 22, 2018 · I just recently re-entered the Jeep world with a 2012 JKU sport auto. About two weeks ago while driving my jeep threw three codes. P0128 (coolant temp low), P0306 (misfire on cylinder 6) and random misfire. No real drivability problems other than a slight bog when the jeep shifted into third gear.

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.. Youtube oklahoma smokeshow

jeep jk code p0128

Nov 10, 2021 · 3299 posts · Joined 2015. #4 · Nov 10, 2021. Thermostat stuck open. The first time mine did it, I just erased the DTM. P0128 is a permanent code, and will stay in the system until it completes so many cycles without detecting the low coolant temp. That said, after mine set the code again, I replaced the thermostat. hasn't been back on since. P0128 Code (2017 Jeep JK) I got a code this morning on my way to work and after scanning saw that it was p0128. After researching a bit it looks like my coolant isn’t getting hot enough due to the tstat being stuck open.P0128 Code: Replacing your 2012-2017 Jeep JK Thermostat - YouTube. BullGear Off-Road. 2.26K subscribers. Subscribed. 118. 18K views 3 years ago. Watch …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.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 …I need to get my inspection done but my CEL was on with p0128 code. I replaced the thermostat, drove a couple days and the CEL went off. Continued to drive for a few more days. I still cannot get inspected (NY) because the vehicle is showing a P0128 as a "stored" code (using Foxwell NT201 OBD reader), even though the CEL is off.P0128 isn’t the worst code out there, but you should still have a professional mechanic check your car ASAP. Doing so assures you that your vehicle is always operating at its best, while ...DATE: August 12, 2010. SUBJECT: Flash: MIL Illumination For P2181 - Cooling System Performance. OVERVIEW: This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software. MODELS: 2008 (JK) Wrangler. NOTE: This bulletin applies to JK vehicles equipped with a 3.8L engine (Sales code EGT).What to watch for today What to watch for today US retail sales may rise for the third straight month. Analysts predict a 0.8% increase in sales in June, the biggest jump in four m...86 posts · Joined 2015. #16 · Oct 15, 2015. Well here is a newb question. I just got the code after I started the Jeep and took off without being warm up. So the engine light pop immediately. Anyway the code is P0128 for Thermostat. So 2 questions: 1.Turn on the motor and top off fluid as it fills in, once it doesn’t take no more close the radiator cap. Now let the motor run for a few minutes while it gets hotter and once 5-10 minutes have gone by turn it off and open the bleeder valve. This is how I’ve done it previously. Repeat the bleeder procedure twice or 3 times and you should be ...Jan 24, 2024 · Jeep Error Code P0128 refers to a diagnostic trouble code that indicates a potential issue with the cooling system. When this code appears, it means that the engine coolant temperature does not reach the expected operating temperature within a specified time frame. Learn the building code for sistering joists and why it's important for your construction project. Follow best practices and ensure safe and reliable results. Expert Advice On Impr...The P0128 code in your 2014 Jeep Grand Cherokee indicates a potential issue with the engine coolant temperature (ECT) sensor or thermostat. To diagnose the cause, you can perform the following steps: 1. Start by checking the coolant level and make sure it is at the proper level. 2.#1 · Aug 22, 2018. Hey guys, I just recently re-entered the Jeep world with a 2012 JKU sport auto. About two weeks ago while driving my jeep threw three codes. P0128 …2011 3.8L jeep jk. received P0128 code, replaced thermostat and ECT.. Hooked up a scanner and drove on highway 65mph, coolant temp readings fluctuate between 168 - 175. When stopped or at slower speeds temperature will rise but will suddenly decrease when speed picks up. Stopped and idled noticed fan kicked in and the scanner was only …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.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 …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 …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.Jan 3, 2023 ... Looks easy enough. My error code was also P0218 - Thermostat Rationality (replace thermostat). I had to wait a couple of days for warmer ....

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