Jeep wrangler p0128

Jul 08, 2024
I have a 05 Jeep Wrangler 4.0, auto trans. I have a aluminum radiator with electric fan and shroud. I have a 200 degree fan switch that cut off once the temp gets to 185. I have a 180 degree thermostat. This setup has been in for a year and a half with zero issues or codes. In the last few weeks the p0128 code has popped up..

P0128 Jeep Wrangler | How To Replace Jeep Wrangler Thermostat. Intermittent p0344 and p0340 code, along with esp light that causes 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 code 1999 jeep grand cherokee p0351 code...need help. P1281 p0128 thermostat 1999 jeep grand cherokee 4.0 inline 6Diagnosing and repairing the P0128 code in your Jeep Wrangler involves a systematic approach to identify the root cause. Whether it's a faulty thermostat, a problematic coolant temperature sensor, or another related issue, addressing it promptly will help maintain your vehicle's performance and fuel efficiency.P0128. Jump to Latest Follow ... Jeep Wrangler Forum. 9M posts 468.8K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!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 ...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 ...Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...I have a 2013 Jeep wrangler 3.6L rubicon. I get the P0128 code coming up. I have replaced the coolant thermostat (not a Mopar part), coolant sendsor (not a Morpar part), antifreeze, burped the air out … read moreCode p0128 just was in the shop last week for new pulleys. Jeep Wrangler 2016 unlimited sharra - Answered by a verified Jeep Mechanic ... I did buy a new Jeep Wrangler JL 2020 Unlimited Rubicon Ecodiesel which I took an AMP Research Power Step Running Board from my old 2016 Jeep Wrangler JK Unlimited . The running Board did not work.Eruptive xanthomatosis is a skin condition that causes small yellow-red bumps to appear on the body. It can occur in people who have very high blood fats (lipids). These patients a...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).How to replace your thermostat on a 2004 TJ wrangler if you have a code P0128 engine coolant temperature is below the thermostat regulating temperature.Gates...** Click "Show More" to Learn more about this video **=====Check out our NEW Website for 2023!!https://www.milehighcampers...Jeep Wrangler P0420 Code Symptoms. The P0420 code in a Jeep Wrangler will often be thrown if one of your vehicle's oxygen sensors is not functioning correctly. There are rarely drivability issues associated with P0420. For most people, the first sign that anything is wrong is the service engine soon light coming on.Code p0128 problem wrangler jeep P0128 code 2013 jeep wrangler Jeep wrangler p0304: cylinder 4. Misfire wrangler. P0128 code problemP0128 antifreeze Diagnose and fix jeep wrangler p0457P0153 again!. Again wrangler jeep inform ok problem comes if will . Check Details. Check Details. Diagnose and fix Jeep wrangler P0457 - YouTube. Check DetailsThe P0128 code in a Jeep Wrangler can indicate a problem with the engine's temperature regulation. By understanding the symptoms, conducting thorough diagnostics, and …2014 Jeep Wrangler P0128. 15 Oct 2023; posts; Kennedi Dach; Diagnose and fix jeep wrangler p0457 2012 jeep wrangler: review Jeep wrangler code thermostat p0128 cherokee replace. New Car Models: Jeep Wrangler 2014. Wrangler jeep review 6l vvt v6 pentastar lb torque hp ft Wrangler caradvice 2014 jeep wrangler in canada.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...Jeep wrangler thermostat code p0128 cherokee replace. Wrangler jeep tpms resetJeep wrangler polar edition 1c4bjwdgxel159811Wrangler 4dr 4wd rubicon. Jl overland ua dossier kievJeep wrangler jk burgundy color sport rims msrp grey price New car models: jeep wrangler 2014Jeep willys wrangler edition special door models jk jeepfan will manual early ...Wrangler JK (Model years 2007–2018) ... Well the Jeep is acting up again. I've got a P0128.. The guy at the shop says 2 thing possibly 3.. thermostat, coolant temp ...Remove A Thermostat from a 2008 Jeep Wrangler - Follow me on Instagram @559powerscape & on Facebook @Five59powerscape.Pulled the code and yup, P0128. Heat is working great so I cleared the code since the light just irritates me and have been looking for the best place for the mopar part . Then today, low 40s and a strong headwind again and it came back on. ... It was a used 2014 Jeep Wrangler but I love her. She is a bright gold with Black wheel and top cover ...Summary of Fixing Jeep P0128 Thermostat Issues. To recap, the key things to know about diagnosing and repairing P0128 thermostat errors on your Jeep Wrangler: A P0128 code means the engine isn't reaching optimum operating temperature due to thermostat failure. Stuck open thermostats, coolant leaks, faulty sensors, and air pockets can cause ...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.c.d.c. 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 …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...P0128 won't go away. My daughters 2007 Wrangler JK radiator went out a couple months ago. I replaced the radiator, the thermostat, the coolant temp sensor, and put new coolant in and got the air out. About 2 weeks later, P0128 comes on. I replaced the thermostat again, cleared the code, and all good. 2 weeks later, P0128 just came on again?Nov 18, 2021 · 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 geeve420.2010 jeep wrangler code p0456 P0128 jeep wrangler coolant sensor replace diy P0128 engine coolant temperature below thermostat regulating How to fix trouble code p0339 for jeep jk unlimited .I have a 2008 Wrangler X that has been throwing a P0128 (coolant thermostat) code and a P2181 (cooling performance system) code this week.my temperature gauge goes to about the quarter notch (normally sits halfway) and when i turn the heater on, it's not very hot and the temp gauge goes all the way back down to zero, when the jeep then starts blowing colder air out of the vents.P0135 is a very common OBDII code that occurs in the Jeep Wrangler. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1. The purpose of the heated element in the oxygen sensor is to ...Model Specific Jeep Discussions. Wrangler JK (Model years 2007-2018) JK Technical Discussion ...CODE P0118 ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT HIGH DODGE JEEP CHRYSLERIf you have a Dodge, Chrysler, Jeep, or Fiat and you have engine light on and ...Share. mrpittman. • 2 yr. ago. So this code means one of two things, either the thermostat is bad but you changed it so now the sensor needs to be replaced. That will fix it, temp sensor drivers side of the block towards the back its going to make a mess because its at the lowest point but get your tools and clear an area and you'll be fine ...Toyota camry p0128: termostato del refrigeranteHow to fix toyota p0128 engine code in 3 minutes [2 diy methods / only Camry v6 toyota 2000 beige cashmere metallic oak le dealerrevs. P0128 Jeep Wrangler Code. Check Details. P0128 Toyota Camry. Check Details. Camry P0128 |P1604 | P2109 |how to fix ||#toyota #wiringdiagram # Check Details. P0128 ...Yes. Only code p0688 comes on, if I remove the relay then p0688 is still on and p0685 also comes on if I remove the relay then only p0688 remains. Here's a video of the fuse getting power then surging when the ignition is turned off that small blink of light at the end is whats causing the fuse to blow.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!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 ...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.This is what I found on that code, not sure if it will help. "Some customers may complain of a MIL illumination. During diagnosis, DTC P0128 may be stored, indicating that “thermostat rationality has been set.”. This condition may be caused by the block retaining feature for the thermostat not holding the thermostat in place.P0128 is usually just a thermostat change. Use OEM. Refill a make sure you don't have any trapped air. Easiest method is using a vacuum refill tool. Badda boom…badda bing. I just replaced mine in November for a P0128 Thermostat rationality code. Just took a road trip today …200 miles. Thermostat fluctuated between 197 and 206. Heat was fine.Definition: Coolant thermostat malfunction—coolant temperature is running below the regulating temperature. The P0128 engine code indicates a problem with your car’s coolant thermostat, which is responsible for ensuring the engine warms up quickly enough after ignition to control emissions and fuel efficiency.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.Nov 8, 2022 · P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep Wrangler 3.6 Don't forget to like and sub! Need help? Comment on what video we should fil...Check it a couple times while the engine is warming up and add more coolant as required. Position the vent hole on the thermostat's flange, if present, at the top. If there's no vent you can drill a 1/8" vent hole yourself. This helps the system to bleed trapped air out more easily.GROUP: Vehicle Performance. 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).I have a 2008 Wrangler X that has been throwing a P0128 (coolant thermostat) code and a P2181 (cooling performance system) code this week.my temperature gauge goes to about the quarter notch (normally sits halfway) and when i turn the heater on, it's not very hot and the temp gauge goes all the way back down to zero, when the jeep then starts blowing colder air out of the vents.What Causes The P0128 Error Code? The P0128 code can be set while the PCM is monitoring engine warm-up. The PCM draws from a few key pieces of data …675 posts · Joined 2011. #1 · Nov 16, 2014. Hi everyone, My TJ is a 4.0L manual with 112k miles. I got a code last night P0305, which means cylinder 5 is misfiring. I checked the plug, and visual around the engine. I saw this wire was missing it's shielding (See red arrow). It had slipped down below the intake.P0128: Coolant Thermostat (Below Regulating Temperature) ... Using the MotoLogic software, we priced out a thermostat replacement service for a 2020 Jeep Wrangler. This is a common issue seen on ...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 ...Sep 29, 2015 · 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.We would like to show you a description here but the site won't allow us.Title: Understanding the P0128 Code in Jeep Wrangler: Troubleshooting and ResettingIntroduction (80 words):Welcome to Mechanics News! In today’s article, we delve into the realm of Jeep Wrangler diagnostics, specifically addressing the pesky P0128 code. If you’ve ever come across this code on your J...OBDII Codes Engine Light Definitions Diagnostic Repair | AutoCodesP0128 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...Jan 11, 2022 · 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.When it comes to finding the perfect pair of jeans, men have a lot of options. But if you’re looking for a classic, timeless style that will last for years to come, then you can’t ...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 ...Santech Coolant Temperature Sensor CT0119. Part # CT0119. SKU # 102074. Check if this fits your Jeep Wrangler. Select store. for pickup availability. Standard Delivery by May 25. Add TO CART. Order Jeep Wrangler Coolant Temperature Sensor online today.Model Specific Jeep Discussions. Wrangler TJ (Model years 1997–2006) TJ Technical Discussion ...OBDII Codes Engine Light Definitions Diagnostic Repair | AutoCodes2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 codeJk 6l rubicon fix repair P0128 jeep jk diagnostic code, thermostat replacementJeep wrangler. Jeep wrangler pavement ends tops cap diamond sun replacement2017 jeep wrangler p0306 Rubicon automobilemag sahara carros capacidades edisi comodidad mayores marcha …Issue: After getting an engine light - code P0128 the dealer replaced the engine thermostat. Since this replacement the radiator fan runs at full speed as soon as the engine reaches normal engine operating temperature. The dealer has been unable to explain why this is happening. The fan noice is very loud from outside the jeep and you can hear ...P2181 indicates that your Jeep Wrangler has an observed cooling system temperature that is too high or too low. It will come up in the scan tool as “Cooling System Performance”. The trouble with P2181 is that by itself, it’s not narrowing much down. There could be a problem with your Wrangler’s cooling system, temperature sensor, or ...Wrangler and CJ . P0128 Thermo failure. Thread starter JPNinPA; Start date Dec 15, 2011; JPNinPA Active member. Dec 15, 2011 #1 Short version 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 ...Santech Coolant Temperature Sensor CT0119. Part # CT0119. SKU # 102074. Check if this fits your Jeep Wrangler. Select store. for pickup availability. Standard Delivery by May 25. Add TO CART. Order Jeep Wrangler Coolant Temperature Sensor online today.Jeep cherokee p0128 4lJeep wrangler coolant location p0128 thermostat system bleeding replace P0128 code thermostatP0128 jeep p1281. Jeep Grand Cherokee 05-10-Fault Codes P0315 & P0335 Fixed!-Crankshaft. Check Details. P0128 Jeep JK Diagnostic Code, Thermostat Replacement - YouTube.Jeep Wrangler Forums. JK Wrangler Technical Forum 2008 JK getting code P0128. Jump to Latest ... I pulled the old key dance trick and got code P0128 - faulty thermostat - so I have changed that AND the coolant temp. sensor but the motor still hacks and snorts; and the engine light flashes when i hit 1500 rpm. ...Share. mrpittman. • 2 yr. ago. So this code means one of two things, either the thermostat is bad but you changed it so now the sensor needs to be replaced. That will fix it, temp sensor drivers side of the block towards the back its going to make a mess because its at the lowest point but get your tools and clear an area and you'll be fine ...P0128 Code and Overheating. Hi all, I have a Wrangler JKU and I noticed the aux fan started running (doesn't usually run), it's 84 out, and the engine felt like it was running a bit hot. My engine light came on with a P0128 (temp not reaching running temp within 15 mins). The temp gauge started climbing and bouncing between 3/4 and half.Videos are the new way to show your Jeep Wrangler so please Submit a video or Link of your Jeep wrangler / Created by Off Road n Chill Members Online • BudgetingBeetle . 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 ...Tools Used:Milwaukee 2767-20 M18 Fuel High Torque 1/2-Inch Impact Wrench https://amzn.to/INNOVA 3612 Milwaukee Electric Tools 2557-20 M12 Fuel 3/8" RATCHETht...Jan 24, 2020 · 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 ...Share. mrpittman. • 2 yr. ago. So this code means one of two things, either the thermostat is bad but you changed it so now the sensor needs to be replaced. That will fix it, temp sensor drivers side of the block towards the back its going to make a mess because its at the lowest point but get your tools and clear an area and you'll be fine ...** Click "Show More" to Learn more about this video **=====Check out our NEW Website for 2023!!https://www.milehighcampers...The P0128 code is a diagnostic trouble code (DTC) that indicates your Jeep Wrangler's engine is operating at a lower temperature than what is considered optimal for efficient fuel combustion. Specifically, this code suggests that your engine hasn't reached the required operating temperature within a certain timeframe after starting the vehicle.Topping off antifreeze P0128 yellow engine symbol. Jump to Latest Follow ... Jeep Wrangler Forum. 9M posts 468.7K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all ...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.Alash128 Discussion starter. 25 posts · Joined 2022. #1 · Dec 6, 2023. Hi y'all. I just recently got a CEL on my Jeep JKU 2017 sport S and i checked the codes and its P 0128. I then checked the coolant temp and it was able to rise up to 205 and above but I randomly got it on the highway driving home. I'm not sure if the recent cold weather ...Jan 7, 2023 · 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. This timeframe depends on other facts, such as ambient temperature.May 8, 2018 · This is what I found on that code, not sure if it will help. "Some customers may complain of a MIL illumination. During diagnosis, DTC P0128 may be stored, indicating that “thermostat rationality has been set.”. This condition may be caused by the block retaining feature for the thermostat not holding the thermostat in place.

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That 2016, 3.6 Check Engine light P0128 coolant temp code. Jump to Latest Follow ... Jeep Wrangler Forum. 9M posts 471.1K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion ...3.5" AEV lift. About a month or so ago, I had an engine light on the dash. Upon checking the code on the dash, it only showed P2311. Went ahead and changed plugs and coils due to age and wear. Cleared code. Soon after, dash light reappeared. Never noticed any major misfires or issues, except missing/rough idle.

How The Real Housewives of Atlanta; The Bachelor; Sister Wives; 90 Day Fiance; Wife Swap; The Amazing Race Australia; Married at First Sight; The Real Housewives of Dallas86 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: 1.576 posts · Joined 2014. #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'.For troubleshooting the P0128 code in your Jeep Wrangler, follow the steps as mentioned below: Manage an OBD-II scanner. Plug the scanner in the port, which is placed above the pedals on the left side of your Jeep Wrangler. Put the key to turn on the vehicle and then press the Read button on the scanner. Press on the Erase or Clear button and ...

When In this video we diagnose and repair our Jeep wish a cooling system concern. Purchase your coolant temperature sensor here!: https://amzn.to/3IWuMpJVisit our...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.This video goes through Troubleshooting for a P0128 engine code. We go through what problems may be associated and how we decided to change the thermostat vs...…

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deerwood elementary teacher arrested 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. They put jeep back together and said I could drive it. matt walsh no beardhockeytron discount code Had that code pop up about a month ago. Bought all the stuff and kept the coolant temp up on the evic. No issues with temps while waiting and by the time I received the thermostat and coolant, the light went off on its own. rentlinx basiccounting atoms worksheet 2 answer keybaruch college academic calendar Sep 29, 2015 · 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.Jeep wrangler coolant location p0128 thermostat system bleeding replace Coolant level check: 2007-2016 wrangler Temperature coolant sensor wrangler cherokee automotive crown grand jeep wk jk sensors kl quadratec parts. Coolant Level Check: 2007-2016 Wrangler - 2008 Jeep Wrangler Unlimited. probuilt pool and patio Te suministramos todo lo que necesitas saber sobre el código DTC P0128 ️ Descripción, ️ causas, ️ síntomas y ️ posibles soluciones.LEER SOLUCIÓN DEL CÓDI...2014 Jeep Wrangler- Codes P2181 and P0128. Ok, so I'm running out of options on fixing this. I've replaced the Coolant temp sensor and the thermostat, along with coolant. Damn thing keeps throwing these codes and the temp gauge bottoms out cold and the fan kicks on. Any suggestions? comcast business pay bill as guestusuhs sdn 2024sour diesel x animal cookies strain allbud GROUP: Vehicle Performance. 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).