What to do if your engine temperature Guage is not working?
That wire that’s on the temp sensor between the #1 & #3 spark plugs… Pull that wire off, leave it unhooked & turn on the key. The guage should stay to the left. Now with the key still on, momentairly ground that wire to the engine. Your guage should peg out. If it does both of these correctly, then you need a new temp sensor.
Why does the temperature gauge on my car keep going cold?
If you have one sensor for both of them, there could either be a problem with the wires between the sensor and the ECU (most likely) or a wiring problem between the gauge and the ECU. Check for any broken wires between these components. The best way to find broken wiring is to measure the resistance with a multimeter from all the wires’ directions.
Where is the temperature gauge on a GM Truck?
Temp. gauge on dash stays completely at the far left/bottom. On startup (when key turned to start) the guage will briefly peg out to far right, but returns to left as soon as engine starts. checked coolant level (Overflow reservoir was empty, so I filled it to the “cold fill” line.
Why is the temperature gauge on the dashboard not working?
Thus, the temperature gauge on your dashboard is your window into the coolant temperature as seen by the temperature sending unit. It lets you know when the engine is cool, at operating temperature, overheating, or fluctuating. The sending unit is a thermistor. It is exposed on one side to engine coolant.
Why is the temperature gauge on my Chevy truck not working?
All I have the same issue, I own a 1996 chevy pickup c1500, before I replaced the temperature gauge sensor, the gage read two lines below 210, after I replace the temp gradually climbs but the engine not as hot as where the gage reads, need advice stephan is on point for the diagnostic procedure. First.it’s not a thermostat issue.
What should the temp be on my GM Truck?
If I turn the key but not start the truck the gauge goes up to probably 180 now that it is cooler and will sit there just fine. When I start the truck, the needles all sweep to the left and go back. Temp goes back to 180 for a few seconds. About the time the flashing airbag light goes off, the gauge goes back down to 160.
Where is the temp sensor on a GM Truck?
Replace the “temp switch”. It’s on the right side of the block, in between the exhaust headers, it’ll have a single green wire going to it from past the alternator. They cost like $20, and it’s an easy replacement. Be sure to get the “temp SWITCH” and NOT the “temp SENSOR”.
What should I do if my temperature gauge keeps going cold?
In some cases, you can replace the temperature gauge or repair any bad solderings if you find any. In other clusters, you might have to replace the instrument cluster. You can often leave your instrument cluster to an expert to repair the soldering if you do not know how to yourself.