Mar 23, 2023 · The engine coolant temperature (ECT) sensor, is one of the most important, engine management sensors. Because, its readings, play a key role in calculations, which affect engine performance. As a result, the (ECU) uses this data, to adjust, the fuel injection and ignition timing. Engines require, more fuel when they are cold. Jul 26, 2021 · Cylinder head overtemp sensor Coolant Temp Sensor Coolant Level Sensor There is a tech service bulletin for the Coolant Level Sensor ($1400 just for the part) but that is 2014 - 2018 not 2013. Does anyone know what else I can try, except for changing the Coolant Level Sensor? It is a $1400 part and I dont want to do that, if I get the same results. HOW TO REPLACE ENGINE COOLANT TEMPERATURE SENSOR 2012-2018 FORD FOCUS 2.0L FAST & EASY!Hey guys! In this video we show you how we replaced the engine coolant Mar 14, 2022 · Diagnosis: It is important to complete the entire diagnostic process when diagnosing the Ford P0128 code. This DTC can be triggered by a missing or stuck open thermostat, a faulty coolant temp sensor, or damaged wiring to the coolant temp sensor circuit. 3rd most common cause of a check engine light in Ford Focus models Jul 1, 2008 · If your radiator fan is not turning on (AC off) and allowing the engine to over-heat around town at lower speeds, you have a temperature sensor problem. Usually there is a coolant temperature sensor that controls the fan. The head temperature sensor is also a possibility, but it usually controls other functions. Jun 20, 2016 · 282 posts · Joined 2013. #1 · Jun 20, 2016. I've got an issue with my 2003 Focus 1.6 ghia. The temp gauge seems to be misreading sometimes. The gauge sits in the middle when driving in traffic showing no issues. You can hear the cooling fan cut in and out as you'd expect, but when the car is on the motorway, and every few miles the needle .

ford focus temperature sensor problems