Check the sending unit between the left first 2 spark plugs. Ground the wire with key on (gauge should peg full hot). If it does change the sending unit.
On the 2008 Chevy Silverado, the ECT (Engine Coolant Temperature) gauge is located on the instrument cluster, which is directly in front of the driver. It is typically part of the gauge array that includes the speedometer and other critical indicators. The ECT gauge displays the temperature of the engine coolant, helping the driver monitor engine health. If the gauge shows abnormal readings, it may indicate a cooling system issue.
Bad temperature sending unit? Bad gauge?
Buy a new Speedometer cluster. The external Temp gauge is extremely rare
195 to 210 is normal
Waht is the answer?
usually on the left of the engine between the first two spark plugs
In a 1991 Chevrolet Silverado with a 5.7L engine, the temperature gauge sensor is typically located on the engine block, near the thermostat housing. It's often found on the driver's side, threaded into the intake manifold or cylinder head. This sensor sends temperature readings to the gauge on the dashboard, allowing you to monitor the engine's operating temperature. Make sure to consult the vehicle's service manual for the exact location and details.
seriously? it tells you what temperature you engine coolant/antifreeze is. that is how your gauge on the dash knows what your temperature is at.
In my experience with my Chevy it was a ground wire
Change the thermostat it's sticking and throwing the engine temp sencer to kick in
because the engine in that car does not cool down
NO. it has NOTHING to do with the engine starting. It works the fuel gauge in the dash only.