If the fuse is good, connect a jumper wire between the ignition switch and the positive side of the gauge. If the gauge now works, replace the defective wiring between the gauge and the ignition switch. If the test light illuminates there is 12 volts present, replace the temperature gauge. via
How do you know if your temperature gauge is broken?
Check the thermostat gauge reading when the car is idle. If the gauge is moving from normal to cold within a few seconds when the car is moving slowly or idling, the gauge could be broken. via
Can a temperature gauge go bad?
Temperature gauges are normally very reliable. An abnormal reading usually indicates a temperature-related problem in your engine, not a bad gauge. But it is possible for the gauge to malfunction. via
How much does it cost to fix a temperature gauge?
The average cost for an engine temperature sensor replacement is between $150 and $193. Labor costs are between $82 and $105 and parts are between $66 and $88. Taxes and fees are not included in the estimate. via
Why is my temperature gauge on cold?
Reasons the Temperature Gauge Reads Cold
On most vehicles, the temperature gauge reads cold until the engine has run for a few minutes. With the thermostat stuck open, the engine can be overcooled, causing a low temperature reading. If this is the case, the thermostat may need to be replaced. via
How do I know if my car needs a thermostat?
How do you check a temperature gauge?
Can you drive with a broken thermostat?
If it is failed in a closed position then you cannot really drive it with the thermostat broken, as the engine would overheat. This however will not generally have any impact on the ability to drive the car, at least if you let it warm up before you start driving. via
How do you unstick a car thermostat?
Should my temperature gauge be in the middle?
Normal Temperature engine temperature gauge
Most experts agree that your engine should run between 195 degrees and 220 degrees. In ideal situations, your needle will maintain a posture right in the middle of your gauge. via
What causes a car thermostat to go bad?
Once the coolant engine reaches proper operating temperature, typically 180 to 200 degrees, the thermostat opens up and allows the coolant to flow through the engine. Sometimes the thermostat fails and must be replaced; there are four main reasons for failure: overheating, sludge, defect and age. via
Will a bad thermostat throw a code?
The most noticeable issues occur when the thermostat gets stuck in either the open or closed position. A malfunction can result in a trouble code, generated by the engine's computer, which can turn on your check engine light. via
How much does it cost to replace a thermostat in a car?
The cost of getting a thermostat replaced in a car is about $200 to $300 on average. via
Why is my temp gauge not working?
The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle's thermostat near the base of the radiator (consult your owner's manual or repair guide) can get gunked up and fail. Disconnect the temperature sensor's wiring connector. via
Where should your temperature gauge be on your car?
When the engine is functioning, and the coolant is doing its job, the temperature gauge needle should be somewhere in the middle between the hot and cold indicators. “Normal” temperature reading can vary from vehicle to vehicle so don't be alarmed where yours settles. via
Can an engine run too cold?
The Nominal Operating Temperature
Here's the thing, though – just like an engine can run too hot, it can also run too cold. As it turns out, every engine has its optimal working temperature that revolves around 200F, give or take. Most engines can reach temps higher than 100C and survive. via
How can I test my car thermostat without removing it? (video)
How do I test my thermostat?
When should you replace car thermostat?
Generally, a car thermostat last ten years. But it can be different for many vehicles. Well, there are many symptoms you will notice when the life of your car's thermostat finishes. via
How do I know if my temperature sensor is working?
How do you know if your temperature sensor is bad?
Symptoms of a Bad Coolant Temperature Sensor
If your vehicle starts to use a lot more gasoline than usual, or black smoke is starting to come from the exhaust pipe, these are indicators that the coolant temperature sensor in your vehicle could be defective, and needs to be replaced. via
Is there a fuse for the temperature gauge?
If there's no light, check the gas gauge fuse. If the fuse is good, connect a jumper between the ignition and the positive side of the gauge. If it works, you need to replace the wire between the ignition and the gauge. If the light turns on, then you're running 12 volts, and it's the gauge itself you need to replace. via