What is the normal temperature for a car's radiator?

1 Answers
LaVera
07/30/25 4:07am
A car's radiator temperature of 90 degrees Celsius is normal. If it exceeds 90 degrees, it is considered slightly high, but the typical alarm threshold is around 105 to 110 degrees. The car radiator, also known as the heat exchanger, is a key component of the vehicle's cooling system. Its function is to dissipate heat—coolant absorbs heat in the water jacket, flows to the radiator to release heat, and then returns to the water jacket for circulation, regulating temperature as part of the engine system. How the radiator works: When the engine's coolant temperature rises, the water pump circulates the coolant repeatedly to lower the engine's temperature (the radiator consists of hollow copper tubes; hot coolant enters the radiator, is cooled by airflow, and then circulates back to the engine cylinder walls), protecting the engine. In winter, if the coolant temperature is too low, the circulation stops to prevent the engine from becoming excessively cold.
Was this review help?
8
1
Share
More Forum Discussions

Why Does a Car Leak Antifreeze?

Common reasons for a car leaking antifreeze are as follows: 1. Radiator damage, poor sealing of the upper and lower water chambers. 2. Loose and poorly sealed connections at the overflow tank, water pump joint surface, and cooling system pipelines. 3. Cylinder gasket damage, excessive flatness deviation or warping of the cylinder head and block joint surface, and loose cylinder head bolts, allowing high-temperature and high-pressure gases from the cylinder to enter the cooling system, leading to rapid coolant consumption. Here is some related information: For maintenance, the coolant should be replaced every one to two years of driving. During routine maintenance, regularly check the antifreeze level and freezing point. If abnormalities are found, promptly replenish or replace it, and identify the cause of the leak for repair.
11
4
Share

How to Turn Off the Auto Start-Stop Feature on the Cadillac XT5?

Cadillac XT5's auto start-stop switch is located on the left side of the center console screen. To turn it off, simply press the corresponding button. Tips for using the Cadillac XT5 auto start-stop feature: ① The auto start-stop function needs to be turned off by the driver every time they start the car. To permanently disable it, a visit to the 4S store for settings adjustment is required. ② During holidays with frequent traffic congestion, it is recommended to turn off the start-stop function as frequent starts significantly reduce ride comfort. ③ For vehicles without hill-start assist, this function should be turned off when starting on a slope to prevent the vehicle from rolling backward.
2
3
Share

What brand of tires does the Escort use?

The Escort comes with two types of tires. The mid and low trim models are equipped with Maxxis VICTRA510 series tires, while the top trim model uses Goodyear Assurance Comfortred series tires. Below is a partial introduction to the Escort's tires: 1. Maxxis Victra MA510: Offers superior dry and wet handling performance as well as wet drainage performance, while also providing good ride comfort and wear life, meeting the needs of mid-to-high-end sedan drivers. 2. Assurance Comfortred: It is a comprehensive tire for mid-to-high-end sedans, capable of fully meeting the diverse needs of drivers.
19
1
Share

How to Determine Thermostat Failure?

Methods to determine thermostat failure are as follows: 1. Open the filler cap of the coolant reservoir and observe if there is any water flow inside. If not, it indicates that the thermostat is damaged or there is debris stuck between the main valve switch. 2. Remove the thermostat from the vehicle and place it in boiling water to observe if it opens as the water temperature rises. 3. Start the engine and after 3 minutes, feel the upper and lower radiator hoses. If the thermostat is functioning properly, the upper and lower hoses will have different temperatures—typically, the upper hose will be hot and the lower hose will be cool. The thermostat is a valve that controls the flow path of the coolant, serving as an automatic temperature-regulating device. It usually contains a temperature-sensitive component that opens or closes the flow of air, gas, or liquid through thermal expansion or contraction.
8
2
Share

What is the principle of the clutch?

Clutch works as follows: The torque generated by the engine is transmitted to the driven plate through the friction between the flywheel, pressure plate, and the contact surface of the driven plate. When the driver depresses the clutch pedal, the diaphragm spring's large end moves the pressure plate backward through mechanical transmission, separating the driven part from the driving part. During vehicle operation, the driver can depress or release the clutch pedal as needed to temporarily disconnect or gradually engage the engine with the transmission, thereby cutting off or transmitting the engine's power to the transmission. The clutch is a common component in mechanical transmission systems, allowing the drivetrain to be disconnected or engaged at any time.
7
1
Share

Can the 'Study to Reduce Points' Program Be Used to Deduct Points from Parents' Driver's Licenses?

The 'Study to Reduce Points' program cannot be used to deduct points from parents' driver's licenses; learners can only reduce points on their own driver's licenses. Within one scoring cycle, a maximum of 6 points can be reduced. There are three ways to reduce points through the program: 1) Participating in online learning (accumulating at least 30 minutes within 3 days) and passing the exam can reduce 1 point at a time; 2) Participating in on-site learning (each session must be at least 1 hour) and passing the exam can reduce 2 points at a time; 3) Participating in traffic safety public welfare activities (1 hour per session) can reduce 1 point at a time. There are 7 situations in which one cannot apply for the 'Study to Reduce Points' program: 1) Within the current scoring cycle, the driver has two or more full-point records or has accumulated 12 points; 2) In the previous scoring cycle, the driver had two or more full-point records; 3) In the most recent three scoring cycles, the driver was penalized for hit-and-run accidents, drunk driving, using forged or altered vehicle license plates, driving licenses, school bus signs, or other vehicle license plates or driving licenses, or buying/selling points; 4) The driver's license is in the probationary period, overdue for inspection, or has been seized or suspended; 5) The driver has unresolved traffic violation records; 6) The driver has vehicles with overdue safety inspections or vehicles not deregistered as required; 7) The driver engaged in fraudulent activities or impersonation while participating in traffic safety education to reduce points or during full-point education and inspection exams.
10
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.