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P0128 code courtesy of the Torque App. Troubleshooting: First thing I went and found out was what temperature does the thermostat open up at for the Jeep. Kind of important to know when you are troubleshooting. On the 3.8L the thermostat is set for 176 degrees. (Not 100% certain on this one) On the 3.6L the thermostat is set for 204 degrees.asked Aug 20, 2017 by Keith. What is the most likely cause for engine code P0128 on a 2012 Jeep Wrangler? Vehicle: 2012 Jeep Wrangler 3.6 V6 code; p0128; 1 Answer. 0 votes . answered Aug 20, 2017 by Reynaldo (13.3k points) P0128 Thermostat rationality The likely cause is the thermostat, that or you have low coolant level, You can even set this ...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.Oct 9, 2016 · 693 posts · Joined 2014. #14 · Nov 4, 2016. I have the same code and think it's my Thermostat. After reading this thread, me thinks that is a correct assessment. I am getting a new one today and will replace tomorrow. I'll post up if that's the corrective action for the P0128 code. ~Illegitimi non carborundum~ .Dec 21, 2016 · 34 posts · Joined 2012. #23 · Jan 13, 2017. Heads up that my 2012 JKU threw a P0128 and it was just because my coolant level had dropped below the min line. The colder weather was enough to trigger it. Once I added some coolant the code cleared and the CEL went away after about 3 drive cycles (about 3 days later).2002 Jeep Wrangler X TJ with I-6 4.0L I had an occasional P0301 code, replaced the Ignition Rail, replaced and changed position of fuel injectors, replaced Crank Shaft Position sensor. Jeep would run great then after a few drives code would return ( it was cleared after each maintenance period, with Code reader and battery disconnect).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.Jeep Wrangler Forums. TJ Wrangler Technical Forum little help with p0128. Jump to Latest ... Don't forget to disconnect the battery while you replace the sensor (or for 10-15 minutes). This will reset the P0128 code. Otherwise, it will take several normal drive cycles for the CEL to go out. Good luck :thumbsup: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 away, but 99% of the time, it starts and runs perfectly fine.JK Wrangler (model years 2007 - 2018) Normal operating temp for ... Normal operating temp for 2017 Jeep Rubicon 3.6. ... Jeep Garage is where you can talk about all your favorite jeeps including the Cherokee, Liberty and Grand Cherokee. Show Less . Full Forum Listing.P0128 Code: Replacing your 2012-2017 Jeep JK Thermostat - YouTube. BullGear Off-Road. 2.26K subscribers. Subscribed. 118. 18K views 3 years ago. Watch as I replace the thermostat on my 2015...The engine rarely goes over 185° during normal driving in Florida at 95° outside temperature. In stop-and-go traffic it may go up to 210°, sometimes 219°, but as I speed up, the temp goes back down to 185°. The check-engine light lit up and the code reads P0128. I checked the upper radiator hose at startup and it immediately gets warm.87_WhyJay. 836 posts · Joined 2011. #4 · Jun 21, 2019. Bad thing about that is there are 3 doors under there that might have the gears stripped. If one is stripped and clicking, the other 2 might be needing replaced at the same time, or at least needing checked and evaluated. 2018 JKUR Recon-Bright White/black (my DD)Updated: July 31, 2021. 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.Jeep wrangler tj p0456 p0455 trouble evac repair codesHow to fix trouble code p0339 for jeep jk unlimited rubicon 3.6l Jeep wrangler jk unit bearing replacement write-up2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 code. 2017 jeep wrangler p0306Wrangler promozione posteriore 6l jk rubicon fix repairJeep wrangler p0456: evap system ...How do I fix code P0128 on a Jeep Wrangler? The best way to fix P0128 is to find the root cause of the problem and repair it. A quick diagnostic process for a p0128 is: Define the code. Check your coolant …Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...P0128: low temp code incident Jeep getting check ivan 0l 2004 comes engine code light 2013 jeep wrangler check engine light reset. I have a 2012 jeep wrangler 2.6l I'm getting codes p0300 & p2308, SrryFollow 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.2022 Jeep Wrangler Rubicon 4xe - Turbo Blue Aug 23, 2020 #14 I had P0456 a few days ago and after a visit to the dealer, they had to replace the ESIM and updated the PCM to the latest firmware. Fixed! Reactions: Sol and Htfan. OP . OP. Htfan Well-Known Member. First Name Jeff Joined Nov 18, 2019 Threads 18 Messages 1,185I am getting the following codes: U140A Implausible Right Front Wheel Speed Signal Received. C1015 Right Front Wheel Speed Sensor Circuit. The funny thing is that the ABS and traction control warning lights only come on when I turn my steering wheel all the way to the left (while driving slowly or even while standing still!).Wheel Chocks. 19mm Socket. 10mm Socket. Ratchet. Floor Jack. 3/8 Inch Impact Gun. Trim Tool Set. Copy URL. This video shows you how to install new TRQ oxygen sensors on your 2006-2018 Jeep Wrangler.In most cases, if the engine temperature is lower than predicted, the ECM notes that information and keeps it on record. When it happens again, the ECM notes it but also stores a P0128 code and activates the MIL light. For this reason, P0128 is often known as a “two-trip” fault. If the engine does reach operating temperature on two ...Safety isn’t everyone’s primary concern, however, and a poor safety rating isn’t going to stop yet another generation of off-roaders and free spirits from turning to the Wrangler. Browse the best May 2024 deals on 2017 Jeep Wrangler vehicles for sale. Save $17,069 this May on a 2017 Jeep Wrangler on CarGurus.

P0128 code. Jump to Latest Follow ... Jeep Wrangler Forum. 9M posts 469.7K 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 JL, JT, JK, TJ, YJ, and CJ models!P0128 on a jeep wrangler with 3.6l (thermostat location) ... replacing your 2012-2017 jeep jk thermostat. Jeep wrangler color jk amp sport tires wheels nice aftermarket very unlimited rubicon ampd lift painted green rig larger lookingJeep wrangler: how to reset the tpms 2015 jeep wrangler 2-door pictures2015 jeep wrangler unlimited sport s for ...The Jeep power train control module (PCM)--or computer, as it is known in layman’s terms--controls the vehicle’s ignition, emission and fuel systems, along with other auxiliary sys...Jul 31, 2021 · Updated: July 31, 2021. 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.

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 ...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 ...Low or weaker coolant levels can trigger the P0128 code in your Jeep Grand Cherokee because it can alter the engine running temperature, causing it to deviate from its ideal operating temperature. This can be detected by the engine coolant temperature sensor, which sends signals to the engine computer (PCM) about the engine's temperature.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Ratchet said: P0128 sets when it takes longer than normal. Possible cause: JK Wrangler (model years 2007 - 2018) Normal operating temp for ... Normal oper.