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. Same code so a thermostat replacement is in order Sent from somewhere in MissouriTrouble Diagnosing Cause of P0128 Code. -I'm on my 3rd Thermostat in the last month (Original Thermostat I thought went bad and was stuck open, replaced it with one that didn't solve the Jeep from throwing the code, then put another one in and it hasn't solved the problem). -I replaced the Coolant Temperature Sensor to see if that was the … The last two characters "28" are DTC numbers. OBD2 Diagnostic Trouble Code P0128 indicates that coolant temperature is below thermostat regulating temperature. When the engine first starts up, the engine coolant temperature (ECT) sensor and an intake air temperature (IAT) sensor both have similar temperature readings. Feb 11, 2024 · 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 ... 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, 2022I have a Jeep Grand Cherokee and my check engine light came on. I scanned the code to be P0128. I bought the vehicle used. For awhile I have noticed a strange noise whenever I turn the climate control … read moreMIAMI, Dec. 22, 2020 /PRNewswire/ -- According to a recent study from the National Institute of Health, adverse drug events (ADEs) may account for... MIAMI, Dec. 22, 2020 /PRNewswi...May 9, 2022 ... P0128 Chrysler 3.2/3.6 Pentastar engine thermostat code, Top 3 causes · Comments192.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. So my check engine light came on and ran the codes. The ones that come up are P0118, P2181 and P0128 and I am a little confused as to how to fix these errors. 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. 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 ... So, buckle up and join us as we delve into the intricacies of Jeep code P0128 and how it affects your vehicle’s performance. Stay tuned for expert insights and practical tips on troubleshooting this common issue. What is Jeep code P0128? Jeep code P0128 refers to a diagnostic trouble code related to the cooling system of a Jeep vehicle.Jeep cherokee engine code p0171 light Jeep p0455 cherokee grand code P0128 p1281 jeep. P0128 Code: Low Thermostat Temperature (Causes and How to Fix)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 …Common Samsung dryer error codes are bE or bE2; dF, dO or dE; tS, tO, tE or tE3; and hE or oD. Users may also get an Et or FE error code. The bE or bE2 error codes indicates that a...P0128 Jeep Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. Home JeepP0128 ... Make: Jeep Code: P0128 Definition: Thermostat Rationality Description: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 …If you own an LG dishwasher, you may have encountered the error code AE at some point. This error code is an indication that something is wrong with your dishwasher and needs atten...Jan 24, 2024 · 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 ... The most common symptom of a P0128 trouble code in a Jeep Wrangler is an illuminated malfunction indicator lamp (MIL). Other symptoms may include poor engine performance and a decrease in fuel economy. 1. Lack of heat– The most prominent symptom of the P0128 trouble code in the Jeep … See moreHey Everyone -. My 2005 KJ threw code P0128 this morning. Did a net search and found this code to be "P0128 Coolant Thermostat" for a Jeep. Some other manufacturers refer to them as "Coolant Temp Below Thermostat Regulating Temp" / "ECT Below Thermostat Regulating Temperature". When I noticed the check engine light come …I will tell you what formats for common handlers exist and why it is better to agree on a single format with the backend than to fence a new solution every time Receive Stories fro...04 jeep grand cherokee 4.0 check engine codes Cherokee p0700 Cherokee thermostat p0128 oil hemi srt Jeep cherokee grand 2008 p0325 codeWe 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...Jeep P0128 Diagnose and fix Jeep P0128. 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.If you have a Jeep P0128 code, you must first diagnose the problem. Engine temperatures can be calculated and analyzed using the live data functionality of the FIXD sensor and app. RepairPal-certified shops have a minimum 12-month warranty on all repairs lasting 12,000 miles or more. It is possible that some repairs will be required to …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. Same code so a thermostat replacement is in order Sent from somewhere in MissouriThe Xerox N2125 fuser assembly should be replaced after every 200,000 page impressions. If your printing is high-demand, your fuser assembly may have a shorter lifespan. When your ... 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 ... 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 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.The P0128 fault code is the diagnostic trouble code (DTC) used by Dodge, Jeep, Ram, and numerous other manufacturers to signify that the coolant temperature in the engine is too cold for the thermostat to regulate. The P0128 engine code can result from numerous issues including a malfunctioning thermostat, a faulty coolant temperature sensor, a ...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.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 …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 ...The last two characters "28" are DTC numbers. OBD2 Diagnostic Trouble Code P0128 indicates that coolant temperature is below thermostat regulating temperature. When the engine first starts up, the engine coolant temperature (ECT) sensor and an intake air temperature (IAT) sensor both have similar temperature readings.Nov 6, 2018 · 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 ... Um, yes. Monday morning, 9/12/22, on my way to work my check engine light came on. Panic mode. Got it diagnosed…..code p0128. Researched it as best I could. Low priority fix, thermostat most likely stuck open. Have driven it everyday to work since Mon day, appx 45 miles per day. Had to make a before work stop at Walmart this morning.Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code.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.Canon printers are known for their reliability and high-quality printing. However, like any electronic device, they may encounter issues from time to time. One common problem that ...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 into107 posts · Joined 2013. #1 · Mar 23, 2015. I recently got a code "P0128 thermostat rationality" on my 2015 Jeep SRT. I first had a Jet 180 thermo and recently switched to a Mishimoto 180. Anybody else ever get this code? Is there a way to clear and see if it comes back without going to dealer? Like.The symptoms of the automobile fault code P0480 include: 1. Malfunctioning cooling fan 2. Overheating engine 3. Engine temperature gauge showing high readings 4. Reduced air conditioning performance 5. Check Engine Light illuminated 6. Engine stalling or running rough 7. Decreased fuel efficiency 8.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? Check Engine Light P0128 error code - 2013 Jeep Grand Cherokee (WK2) - thermostat replacementStep by step how to. My Jeep Grand Cherokee's check engine light...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 …53 posts · Joined 2010. #1 · Feb 15, 2022. Hi All, I have a 2013 Grand Cherokee Trailhawk with the 3.6 and got code p0128 when driving home around 30 miles this weekend. The code came on a few minutes after driving and had my scanner with me. The temp stayed around 195-200 the way home as per the digital guage. Dash guage …Jeep Grand Cherokee P0128 Code. Cherokee fault p0335 codes crankshaft 02 jeep grand cherokee 4.7. dead miss started suddenly. have codes Jeep p0455 cherokee grand codeIt'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. While the check engine light was on, during this time quite often the temperature would just drop to nothing and the radiator fab would be on continously. After a couple of restarts, although the check engine ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0128 Saving Repair Part...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 ...The most common symptom of a P0128 trouble code in a Jeep 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 Cherokee is the lack of heat. When the thermostat doesn’t ...Common Reason: Code P0420 is often related to a bad catalytic converter. P0420 means the catalytic converter is not efficiently removing pollutants from the exhaust. Your car won’t pass an emissions test. A bad catalytic converter isn’t a hazard to the driver but it can overheat and destroy engine components.Labor: 1.0. To diagnose the P0128 Chrysler 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.Consumers of products and services might want to have some assurances that the prices they are about to pay are correct and fair. Many people have access to superstores and online ...P0118 JEEP Code - Engine Coolant Temperature Sensor Circuit High 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 …** Click "Show More" to Learn more about this video **=====Check out our NEW Website for 2023!!https://www.milehighcampers...p0128 code on a 2004 silverado I have a 2004 silverado with a p0128 trouble code.I have replaced the thermostat and still recieve the code but it only does it on cold mornings.It also seems to take the engine a little longer to warm up on mornings where it is 40 degrees or lower.Is there a regulator or something that could be cau...HI @Jonathan, The P0128 code is very common. Your Cherokee's computer knows how long it should take for the car to warm up. Using the sensors that measure the air temp (ambient) as well as the temperature of the coolant, if the computer finds a deviation from what it expects or the value is completely out of bounds from what …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. Same code so a thermostat replacement is in order Sent from somewhere in MissouriFault Code P0128 advice. Hi all... got a P0128 fault this morning. Using Torque and a cheap bluetooth OBD reader, Torque states: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). Ensured radiator and reservoir were appropriate levels (quick/easy fix). Tried the 3 trip reset afterwards, no change.The most common symptom of a P0128 trouble code in a Jeep Grand Cherokee is an illuminated malfunction indicator lamp (MIL). Other symptoms may …The code P0128 - Coolant Temperature Below Thermostat Regulating Temperature means that the engine does not reach expected temperature after running …Oct 27, 2020 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0128 Saving Repair Part... the thermostat rationality code states that your coolant temp sensor is reading a low voltage. thermostat was possible stuck open. just replace it. but if you do replace it with a 180 degree it will still have the code. just pull the asd fuse and leave it out for 15 seconds to reset the dtc's.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..Dec 14, 2019 · 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... The P0128 code is connected to the cooling system. After the driver starts the engine, the coolant should reach a temperature of 160° F in 15 minutes. Once it does, the coolant temperature sensor is there to keep the temperature above 160° F. If the coolant temperature doesn’t reach that temperature, or it takes it too long, the P0128 ...Don't procrastinate on fixing misfires as they can quickly damage catalytics. as for your p0128, it was likely a history code (unless your check engine was on solid. p0128 will only reset after quite a few cycles (believe 40 from history). No worries as if it did set once, your thermostat was likely losing some performance.The P0128 code is triggered when the engine control module (ECM) detects the engine coolant temperature (ECT) below the thermostat regulating temperature. This can be caused by several factors, including: A Faulty Engine Coolant 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. 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.Mongo53. 5245 posts · Joined 2018. #6 · May 28, 2018 (Edited) The P0128 codes means the engine isn't warming up fast enough. Its for emissions, because a cold engine makes more pollution than a fully warmed up engine. Sure, logically an engine not warming up fast enough could be a thermostat.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 …Common Samsung dryer error codes are bE or bE2; dF, dO or dE; tS, tO, tE or tE3; and hE or oD. Users may also get an Et or FE error code. The bE or bE2 error codes indicates that a...The P0128 Code is not a big problem. One thing to notice is that you should not ignore this occurrence for a long time, which will lead to other trouble in the future. 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.The p0128 code is a diagnostic trouble code that indicates an issue with the engine’s coolant temperature being below the thermostat regulating temperature. This code can lead to various problems such as decreased fuel efficiency and poor engine performance. It is important to address this issue promptly to avoid further damage to your vehicle.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?Maytag washers are known for their durability and reliable performance. However, like any other appliance, they can occasionally encounter issues that may display error codes on th...Doctor and hospital bills are riddled with errors. Learning to spot and fix them could save you thousands on your care. By clicking "TRY IT", I agree to receive newsletters and pro...Fixing P0128 in the Dodge Caravan is usually a pretty easy thing to do since, 90% of the time, a stuck thermostat will cause the problem. Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. When a thermostat is stuck open, it …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!Doctor and hospital bills are riddled with errors. Learning to spot and fix them could save you thousands on your care. By clicking "TRY IT", I agree to receive newsletters and pro...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 ...Common Samsung dryer error codes are bE or bE2; dF, dO or dE; tS, tO, tE or tE3; and hE or oD. Users may also get an Et or FE error code. The bE or bE2 error codes indicates that a...45 posts · Joined 2014. #1 · Dec 9, 2016. So i did some research and noticed that this code could mean some of the following... - Insufficient warm up time. - Low engine coolant level. - Leaking or stuck open thermostat. - Faulty MAP sensor. - Engine coolant temperature sensor harness is open or shorted. - Engine coolant temperature sensor ...So, what does the code P0128 mean? You’ll likely see your malfunction indicator lamp illuminate. You may also experience a longer amount of time for your engine to warm up, or the temperature dropping while you’re driving at high speeds.Fault Code P0128 advice. Hi all... got a P0128 fault this morning. Using Torque and a cheap bluetooth OBD reader, Torque states: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). Ensured radiator and reservoir were appropriate levels (quick/easy fix). Tried the 3 trip reset afterwards, no change.
Jan 24, 2024 · To diagnose and fix the P0128 code on a 2015 Jeep Grand Cherokee, follow these steps: 1. Check the coolant level: Ensure that the coolant is at the correct level. If it is low, refill it to the recommended level. 2. Inspect the thermostat: A faulty thermostat can trigger the P0128 code. . Pimp c casket
If your Jeep Wrangler is throwing a P0128 code, the root cause is likely a faulty thermostat or low coolant level. But faulty sensors, hoses, or a bad radiator cap …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.Error code P0128 on your Jeep indicates a possible issue with the engine’s coolant temperature being too low. To diagnose and fix this, check the coolant level and condition, inspect the thermostat, and test the coolant temperature sensor.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.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.LG dishwashers are known for their reliability and efficiency in getting your dishes clean. However, like any appliance, they can sometimes encounter issues that result in error co...P0128 is a trouble code often associated with a malfunctioning thermostat. ... or a Jeep, the P0128 code is likely to appear once your coolant thermostat or ...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 to ...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.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...I have an error code P0422 and have no idea what it means. 2006 honda civic p0128 P0441 patriot easy How to fix dodge p0305 engine code in 3 minutes [2 diy methods / onlyJeep 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 …SCOTT The HARDER you work...the LUCKIER you are! 2018 Jeep Trackhawk REDLINE RED2 2014 REDLINE red Jeep SRT "BLOODIED" 1 of 1 Instagram-themob_guyThe symptoms of the automobile fault code P0480 include: 1. Malfunctioning cooling fan 2. Overheating engine 3. Engine temperature gauge showing high readings 4. Reduced air conditioning performance 5. Check Engine Light illuminated 6. Engine stalling or running rough 7. Decreased fuel efficiency 8.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.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.Feb 8, 2022 ... ... code reader, more than likely you'll get error code P0128 and some info that says the car took too long to get up to operating temperature ...1. P0300 – Random/Multiple Cylinder Misfire Detected: This code indicates that the engine is misfiring in multiple cylinders, causing poor performance and potential damage. It could be due to issues with the ignition system, fuel system, or even a vacuum leak. 2. P0128 – Coolant Thermostat (Coolant Temperature Below Thermostat ….