. Route from inside vehicle without crimping or cutting thermal tubing then remove temoperature sending unit from engine and replace with Sun bulb assembly
It is on the driver side head of the engine.
THE temp sending unit 4 the inside gauge usally has 1 wire & the sending unit 4 the Computer has 2 wires.
195 to 210 is normal
220 is not excessive
Take it to a mechanic
what should my dash gauge read for normal opp temp on my 97 Chevy 5.7 liter vortec
Take wire off temperature sender look a guage. If guage at cool, temp sender needs replacement. If guage still at hot, temp sender wire shorted to engine or vehicle body.
That would be the engine coolant temp sensor for the dash gauge only. The sensor near the thermostat housing is the engine temp sensor for the ECM.
1993 chevy 4.3 v6 1500 truck temp gauge inoperative,
It all depends on the rating of your thermostat which is usually 180 to 195 degrees if using a aftermarket temperature gauge and headers the temp. gauge reading will be higher than normal because of the excessive heat from the headers.
The temp sending unit for the temp gauge is located on the drivers side of the engine between cylinders 3 and 5 spark plugs.
because your thermostat is opening and closing as the engine temp. fluctuates