10% OFF $75. Below is the Temp to resistance chart for the Jeep YJ & XJ. This sensor is custom-made to be a perfect fit for your Jeep so that you can maintain your Jeep's OE style with a direct replacement, new and improved sensor. post #15 of 18 Old 05-18-2016, 07:25 AM Thread Starter. On Jeeps there are two coolant sensors. The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM. $4.48: $0.00: $4.48: Alternate: Quantity: Add to Cart. Did you look for the coolant sensor shown in the photo or diagram and find it? 1-3 of 3 Results. When the correct engine operating temperature is reached, the powertrain control module orders the fuel system to ⦠Made to fit with 1997 to 2006 Wrangler 4 or 6 ⦠Jeep Code P0128 Meaning. This Coolant Temp Sensor is designed to fit 2008 to 2018 Jeep Wrangler JK models. On Jeeps there are two coolant sensors. 2004 Jeep Grand Cherokee Special Edition 8 Cyl 4.7L MFI, Naturally Aspirated, GAS, Sensor only, Sensor Only; 2004 - 2006 Jeep Wrangler (TJ) Unlimited 6 Cyl 4.0L; 2005 Jeep Liberty Rocky Mountain Edition 6 Cyl 3.7L MFI, Naturally Aspirated, GAS, Sensor only; 2005 - 2006 Jeep Wrangler (TJ) Unlimited Rubicon 6 Cyl 4.0L In the end, it was the coolant temp sensor. My wife's jeep is havin this problem. Delphi (1) Duralast (1) Santech (1) This is a test. In some cases the PCM uses the reading from the sensor to turn on the electric cooling fan if so equipped. Don't forget to check out our website and social media venues down below for more great content from us and special offers and news. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only. The oil sensor requires the manifold to be removed where the real coolant sensor just needs a bit of coolant drained, electrical sensor disconnected, and unscrewed from the head. The runner/manifold looks like this: I may be wrong, but I don't think you can get access to this sensor without removing the intake manifold first. As soon as I changed it and fired up the Jeep, It heated up and the gauge went to the middle as it should have. Please enter a valid e-mail address for yourself. See YouTube video at the bottom of the page. STANT . So, let me muddy the waters a little further. Old coolant that has become corrosive. BRAND. Note that passwords are case-sensitive. Will it trigger the check engine light if the sensor is faulty? Typically, the coolant temperature sensor will be located in the coolant pipe. © Copyright Chrysler Group LLC. Itâs a generic powertrain code, which means that regardless of who manufactured the vehicle, itâll have the same meaning (1996+). Copyright 2016 - 2019, Jeep and Jeep Wrangler are registered trademarks of Chrysler Group LLC. Please enter a password for your user account. If my YouTube videos and website has helped you. I get a small commision that cost you not a penny more. Coolant Temperature Sensor monitors the temperature of the water in the engine. The best part is, our Jeep Wrangler Coolant Temperature Sensor products start from as little as $11.99. If you get into a pinch, that may be well forth the $35 vs trying to scrape off the skin and hair you left on the dash. The sensor modifies a voltage signal from the Engine Control Module . Click here to see how to get the DTC code from the Jeeps computer. It may work for other fuel injected Jeeps as well. FILTER RESULTS. 2003-2020 ExtremeTerrain.com. The first is it looking down near the steering shaft. We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. I'll take a look when I get back to a computer. If you're beginning to notice your 2012-2018 3.6L Jeep Wrangler JK's air temperature sensor is getting faulty, check out this Air Temperature Sensor. That thread has a photo and diagram pointing to the coolant sensor. We have the best products at the right price. ... My wife's jeep is havin this problem 2011 WK2 Overland 3.6L-hers 2004 Dodge Ram Rcsb 5.7L-his 11JeepGC is offline Quote Quick Reply. This warranty only applies to the original retail purchaser and is non-transferable. It helps support the site and more educational projects for you to see. Please help supprt FixJeeps.com by making you purchases though Amazon. ... Coolant Temperature Sensor (92-95 Jeep Wrangler YJ) $21.59. Wrangler P0128 Symptoms. Thanks! I think someone ask and resolved this a couple years ago here. When it comes to your Jeep Wrangler, you want parts and products from only trusted brands. If you temp gauge isn't acting right, replace the one wire. The PCM in its turn controls the cooling fan speed and also gives the info to the instrument cluster for the temp gauge. Here at Advance Auto Parts, we work with only top reliable Coolant Temperature Sensor product and part brands so you can shop with complete confidence. These things suggested that the ECT sensor was defective, not a hard failure but giving a low reading. Exclusions will apply.Application. padgett, here's what I have to go on regarding condtions for the P0128 to set. tubalcain. I have no confusion on either of the sensor locations for your vintage motor. The video has been removed. Something like a pan of water on the stove top over low heat. FixJeeps.com and Power Addicts YouTube are Amazon partners. The sensor modifies a voltage signal from the Engine Control Module . According to the diagram, looks like coolant temp sensor #2 is located behind the intake runner/manifold. When monitored: With the engine running, ambient temperature between 8C(17.6F) & 50C(122F), startup coolant temperature less than 50C(122F) and average vehicle speed greater than 16KPH(10MPH), untill the vehicle untill coolant temperature reaches 85C(185F). The video link in the other thread you put me onto to is no good. Cracks in the plastic where the harness connects on to it. The modified signal returns to the ECM as the engine coolant temperature input. There arenât many symptoms with P0128, unless it gets cold. I replaced the ECT sensor. Note that there has been coolant sensor confusion on the internet and some dealers in that many confuse the engine oil temperature sensor with the coolant sensor. Then there is another at the back drivers topside of the engine cylinder head just to the right of the valve cover, this one has one wire.