Where is the coolant temperature sensor located on the new Lavida?
3 Answers
The coolant temperature sensor on the new Lavida is located on the lower side of the engine's upper coolant hose. Below is some information about the coolant temperature sensor: 1. The resistance value of the coolant temperature sensor ranges between 275 ohms and 6500 ohms, with higher resistance at lower temperatures and lower resistance at higher temperatures. 2. There are two types of coolant temperature sensors: The first type functions by changing its internal resistance to alter the current passing through it, thereby driving the changes on the coolant temperature gauge. The second type provides the engine control unit with an analog signal representing temperature changes. Additional information: The role of the coolant temperature sensor is to convert the coolant temperature into an electrical signal, which is then input to the ECU for the following purposes: 1. Adjusting fuel injection volume; increasing fuel injection at low temperatures. 2. Modifying ignition timing; advancing ignition timing at low temperatures and retarding it at high temperatures to prevent knocking. 3. Influencing the idle control valve; at low temperatures, the ECU controls the idle control valve based on the signal from the coolant temperature sensor to increase idle speed.
The coolant temperature sensor of the new Lavida is usually fixed on the side of the engine or near the water pump. You need to open the hood to locate it. Specifically, it's a small square-shaped component with wires plugged in, connected to the coolant hose, often found near the thermostat or the edge of the water pump in the engine compartment. If the sensor fails, the coolant temperature indicator on the dashboard will light up to alert you. Once this thing malfunctions, the engine is prone to overheating, which can lead to burning cylinder gaskets or damaging other components. Pay attention to changes in the coolant temperature gauge during daily use. Don't rush to inspect it yourself; it's best to drive to a professional repair shop. They can use small tools to test the circuit, confirm the issue, and then replace it. DIY disassembly and repair can easily damage the wires. I've seen many beginners make mistakes, leaving their cars stranded on the road halfway.
Speaking of the New Lavida's coolant temperature sensor, it's installed either above the water pump or at the engine coolant pipe joint. I've driven this car before and encountered sensor failure, causing erratic temperature gauge readings. Locating it is quite straightforward - just open the hood and follow the coolant hose to find a small metal head with two or three wires connected. When faulty, the car's AC might not work properly either, affecting fan operation. For replacement, turn off the engine and wait for cooling, then unplug the connector and unscrew the old sensor to install the new one. However, the operation can be tricky as you'll need to remove shield screws, which beginners might mess up. I recommend checking forum diagrams in advance or asking a friend for help. After replacement, driving becomes much more comfortable.
