could be the temperature sending unit
Thermostat is sticking.
replace the printed circuit board behind the tach gauge. $15.00
It is for the Temperature gauge, it feels more balanced than being either side of the middle
A temperature gauge, that always read the maximum temperature, is usually not connected to the temperature sensor. The wire between the gauge and the sensor must be broken.
get a new temperature sensor.
When operating properly, the cooling fan stays on until the temperature drops to normal.
Your check gauge light comes on if : your coolant temperature guage shows the temperature is high your oil pressure gauge shows the oil pressure is low or your fuel gauge shows the fuel tank is near empty
If the temperature gauge on your 1995 Blazer with a 4.3 engine stays on hot but the vehicle is not actually overheating, it could indicate a faulty temperature sender or gauge. The sender might be providing incorrect readings, or there could be a wiring issue affecting the gauge's performance. Additionally, a stuck thermostat could cause fluctuating temperatures, but if the engine runs fine, it's likely an issue with the gauge itself. It's advisable to have the sender and gauge tested to confirm the problem.
The normal operating temperature for a 1996 Camaro typically ranges between 195°F and 220°F (90°C to 104°C) when the engine is fully warmed up. It's important to monitor the temperature gauge and ensure it stays within this range to prevent overheating. If the temperature exceeds this range, it may indicate a cooling system issue that needs attention.
Most likely cause is a failed engine thermostat.
The normal operating temperature for a 2006 Chevy Trailblazer typically ranges between 190°F and 220°F (88°C to 104°C). This temperature range ensures the engine is running efficiently and helps to prevent overheating. It's important to monitor the temperature gauge on the dashboard to ensure it stays within this range during operation. If the temperature exceeds this range, it may indicate a cooling system issue.
ect sensor bad