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Jan 24, 2020 · T. tonydee Discussion starter · 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 scanner. My '05 X is throwing the P0128 code. I did a search and saw a similar thread where the guy replaced the coolant temperature sensor and it fixed the problem. ... I used a mopar thermostat which is recommended for my jeep. As …Or call the extended warranty folks. Housing broken might be covered. Thermostat might not. It should tell you in the warranty paperwork. 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.Jun 13, 2023 · Dodge, Jeep, Ram Fault Code P0128 Repair Cost. Here’s a quick breakdown of costs to fix code P0128: Thermostat: $25-$400. Coolant Temperature Sensor: $25-$250. Loose connection/wiring issue: $0-$500. In most instances, a P0128 engine code is a relatively inexpensive repair. Mar 17, 2018 · 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. 1. Check Coolant Levels. 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 ...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.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 ...Nov 5, 2018 · 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 ... 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...1) Warm engine up for five minutes (must reach closed loop) 2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes. 3) Stop and idle for 3 minutes. 4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes. 5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor).P0128 Jeep Wrangler | How To Replace Jeep Wrangler Thermostat | bleeding coolant system | Location It’s cable reimagined No DVR space limits. No long-term contract. No hidden fees. No cable...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 (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.5. Check the PCM. Lastly, If the wiring connected to the engine speed sensor is in good order and the sensor is functioning correctly, your Jeep might have a malfunctioning Powertrain Control Module. Although it’s rarely to blame for a P0320 code, you can’t rule it out since it processes the engine speed sensor signal.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...Aug 19, 2020 · When your 2014 Jeep Grand Cherokee 3.6 v6 check engine light comes on with code P0128 the suggested fix is a thermostat change. Its common problem every 50-1... I am experiencing this code now. A few months ago, I replaced the water pump and installed a new 195 T-stat while I was at it. From that time on, I have thrown a P0128 code. Nothing has changed insofar as the temp my Jeep reaches, but like others have said, on cold days it takes longer to reach the operating temp.The Benefits of Regularly Checking for P0128 Jeep Code. Regularly checking for the P0128 Jeep code is an important part of maintaining your vehicle (just like the P0128 code in a Chevy or most other cars). This code indicates that the engine coolant temperature has not reached the required operating temperature within a certain amount of time.Not a bad job...you can actually change it out with very little coolant coming out , if you have recently changed your Antifreeze...otherwise drain and refi...The code is for a P0128. The most common cause is a faulty thermostat. I have a couple of questions about this. First, ... Take it in, preferable to your Jeep Dealer, who will install the correct Mopar parts needed. Have them flush your cooling system, and then install a new Mopar thermostat, Radiator cap, ...The code is for a P0128. The most common cause is a faulty thermostat. I have a couple of questions about this. First, ... Take it in, preferable to your Jeep Dealer, who will install the correct Mopar parts needed. Have them flush your cooling system, and then install a new Mopar thermostat, Radiator cap, ...Nov 10, 2021 · Now, the description of P0128 is the engine takes too long to warm-up. Its an emissions requirement, because the engine makes more emissions while its cold, so the Federal Gov mandates it has to warm-up within a certain amount of time. So the first assumption would be its the thermostat.

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. P0688 means there is an output circuit issue in the power relay sense circuit, likely due to a damaged or defective ECM relay or faulty wiring.P0218 is a diagnostic trouble code (DTC) for "Transmission Over Temperature". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 .=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0128 Saving Repair Part...But mostly, the P0125, P0126, and P0128 codes are structured for emissions control. A healthy engine needs to run at least 200 degrees. Some vehicles don’t even turn on their cooling fans until the coolant reaches nearly 230 degrees. Take note that codes like P0126 must be addressed as soon as possible.Just bought a 2015 jeep grand Cherokee last week with 99k miles. It is the 3.6L v6. No check engine light when I drove off the lot. FFW roughly 50 miles. ... Your engine would not get up to full operating temp, and …

However, some common codes that may be found on a jeep codes list include P0455, which indicates an evaporative emission control system leak; P0420, which indicates a catalytic converter efficiency below threshold; and P0128, which indicates a coolant thermostat malfunction. The following page contains a comprehensive list of …=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code JEEP P2181 Saving Repair ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. codes P013A and P0128 2007 Jeep Commander 5.7 Hemi My Jeep. Possible cause: The Benefits of Regularly Checking for P0128 Jeep Code. Regularly checking for the P0128.