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Sep 29, 2015 · 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. Reply. Save. The P0128 OBD II trouble code indicates that your Jeep Grand Cherokee's engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the vehicle. This code can appear as soon as you start your vehicle, or it can also occur while driving.If you take your car to a shop for diagnosis, most shops will start with an hour of “diag time” (the time spent in labor diagnosingyour specific issue). Depending on the shop’s labor rate, this typically costs somewhere between … See moreP0128 went away before it could be fixed. I have a 2013 JKU with 125K mi. About a week ago my check engine light came on and threw code P0128. The code reader said the thermostat needed replaced so I made an appt with my mechanic (I don't have a garage or shop to work in right now) to replace it. The appt. was for later this week, but …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.Watch as I replace the thermostat on my 2015 Jeep Wrangler Unlimited after getting the P0128 Error Code.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 …Official Website Universiti Malaysia Sabah. Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah. (+6088) 320000 / 320474However, before you replace your entire thermostat, inspect these other areas as well. Low engine coolant can alter the engine running temperature enough to signal trouble code P0128. Your intake air temperature sensor, coolant temperature sensor and coolant fan could also signal this trouble code, so these should be inspected after you look ...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...A P0128 is a code is an indication of a faulty thermostat or ECT (engine coolant temp sensor). The manufacture designs the engine to run at a specific operat...In this video, we replace the thermostat in a 2015 Jeep Grand Cherokee because of a code P0128. Pretty easy job as long as you don't break anything like I di...If you’re in the market for a Jeep and looking to buy one from a private owner, there are some common mistakes to avoid. While purchasing a Jeep from a private seller can often lead to great deals, it’s important to be cautious and take the...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.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.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.Jul 10, 2019 · 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 coolant. Still getting the P0128 code. Any ideas? If you’re in the market for a used Jeep, there are a few things you should keep in mind before making your purchase. Jeeps are known for their ruggedness and off-road capabilities, but they also require proper maintenance and care to ensure...We got this 2015 jeep wrangler here with check engine light code p0128 Thermostat below temp. I will show you step by step how to change the thermostat and f...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. In other words, there is a problem with the engine operating temperature not being reached within a certain amount of time.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. 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 …If your Jeep Wrangler is displaying a p0128 code, it means that the engine is not reaching the correct operating temperature. This can be caused by a variety of …

Description of Diagnostic Trouble Code. P0200. Injector Circuit. P0201 (M) Injector # 1 Control Circuit. An open or shorted condition detected in control circuit for Injector # 1 or the INJ 1 injector bank. P0202 (M) Injector # 2 Control Circuit. An open or shorted condition detected in control circuit for Injector # 2 or the INJ 2 injector bank.If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V. P0138 Jeep Code - O2 Sensor 1/2 Circuit High.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.Hey there all, Was driving to work yesterday and my check engine light began flashing and the motor started to run a bit rough. 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.

Dec 18, 2019 · 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. Parts I used:Jeep Grand Cherokee Thermostat https://amzn.to/2tHPqXiCheck Engine Light P0128 Jeep Grand Cherokee Thermostat Replace. Step by step how to. Part...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Mar 4, 2022 · Brad loebbaka Discussion starter · Mar 4, 2022. Go. Possible cause: =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====En.