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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 ...The code that came back was P0420 Bank 1. The check engine light remained on all week until I got gas today and, boom, the check engine light is gone. ... Jeep Wrangler Forum. 9M posts 471.2K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding ...I've had this code come and go for about a year on my 2014 jk. I replaced the thermostat sensor to no avail. New thermostat is easy enough to replace, trick is just getting it out of the box in my garage some day 🤣How to Fix the P0128 Code in Your Jeep Wrangler. The P0128 code in a Jeep Wrangler is a common issue that many owners might encounter. This diagnostic trouble code (DTC) is an indication that the engine's coolant temperature is below the thermostat regulating temperature, suggesting a potential problem with the coolant thermostat or the engine's …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.Jun 14, 2020 · Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for P0128 Jeep Questions and Answers.P0157 is a common OBDII code that occurs in the Jeep Wrangler, it's a general code (this means that it has the same meaning for any vehicle). This code typically indicates that there is an issue with the wiring or harness going to the sensor, or the sensor itself is bad. There are other things that cause P0157 to populate.temperature read 551 C when codes were set. There is never a check engine light. Had it checked for temperature and codes the day after a clearing of codes and temp read 551 C again but no codes were set in the computer. Fan is working fine. Raidiator temp stays between 210 and 215 when copletly warmed upToday I was working on an older Dakota 5,2L and had the OBD tool out. I hooked it up to the Rubicon and found two stored codes in my system ($7E8 and $7E9). I’m guessing that these codes are probably related to the earlier “check engine” situation and repair a week ago, but haven’t been able to confirm this. I just wondered if we have ...The P0118 code will often put your vehicle into a failsafe mode, which can cause the engine to run rough or hesitate until it warms up to operating temperature. Because of this failsafe mode, your ...Model Specific Jeep Discussions. Wrangler TJ (Model years 1997–2006) TJ Technical Discussion ...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.EDIT: it's a 2017 Jeep Wrangler Rubicon. That's almost always caused by a thermostat not closing all the way, and at the dealership where I worked we just automatically replaced the thermostat. I can't recall a single time that didn't fix it. That's to indicate your thermostat is stuck open. If your heat blows before 160F, replace the thermostat.2012 check engine code: p0300Jeep wrangler jk check engine light codes 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 codeRp4-ch11 jeep wrangler. Hello everyone. my check engine light just came on in my jeep. it threwP0123 jeep cherokee Jeep wrangler check light engine yjP0128 code 2013 jeep wrangler.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.A subreddit for Jeep Wrangler enthusiasts Members Online 2015 Wrangler JK Check Engine Code P0128: Coolant Thermostat Temperature Below Regulating Temperature…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...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 ...

Mar 15, 2018 · All was well. Fast forward to now - The P0128 Code came back up along with the P2181 and the P0118 Code. The Check Engine Light is on, and the temperature gauge is showing very low temp and the fan is constantly running. Sometimes the engine doesn't start right away, but 99% of the time, it starts and runs perfectly fine.Code P0305. Hi members I'm new to the forum. Wrangler 2014 unlimited JK. Code P0305 misfired cylinder 5. In the process of addressing this problem I've learned a few things. As of now I have replaced all spark plugs and all coils. Also ran a concentrated amount of Sea Foam through the injectors. Thought for a short while I had the problem fixed.Code P0128 2013 JK. Checked my coolant level in the radiator and had to add a little. Overflow bottle was normal level. After a drive I discovered a very small leak coming from under the radiator cap. I replaced the cap with the latest upgrade, 17 PSI cap which is down from the original 18 psi cap. After a couple of short trips of 12 miles CEL ...Hi, I've been driving my 2015 Wrangler for two years with this fault code. I live in a very hot climate much like AZ, and I figure that the temperature most days doesn't drop low enough to cause the thermostat to close. Then the ECU sees this as irrational behaviour and generates a code.

Jeep wrangler Jeep cherokee code p0128 engine light on 2014 2015 2016 2017 2018 2019 Jeep wrangler p0456: evap system – small leak. P0128 Jeep JK Diagnostic Code ...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 ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. In today's video, Zach takes a deep dive. Possible cause: P0128 Jeep Wrangler 2015. 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128.