Could be the O2 sensor, or lots of things. It is just there to alert you there may be a problem. There should be something in the computer to indicate what system has the complaint.
The check gauge light is on to notify you that one of the gauges is out of normal range. The vehicle may be over heating, low on oil pressure or not charging.
My coolant light come on want can it be.
My rpm light came on but not my check engine light so what does that mean when the rpm light is on
According to the 2006 Ford Expedition Owner Guide : The " CHECK GAGE " light comes on if the engine coolant temperature is HIGH or the engine oil pressure is LOW
gage of temperature go to hot position but is not hot the engine check gages light come on
you likely mean "check engine" which could be a multitude of reasons,you need to plug it into a reader to desipher the code Many parts stores will read the codes for you for free and depending on the fault you can get the parts there to do the job.
Because the oil is low.
You could put a vacuum gage on the engine and time it for peak vacuum. A timing light is still better.
No , the CHECK " GAGE " light comes on if the gas gauge is at or near empty , the engine coolant temperature is HIGH , or the engine oil pressure is LOW
With the guage cluster that includes a tachometer there is a check gage light , that is located just above the tachometer at the 3,000 RPM mark . The check gage light comes on if the engine coolant temperature is high , the engine oil pressure is low , or the vehicle is almost out of gas . There is also a fuel reset light to the left of the gas gauge
The check gauge light on the 1994 Chevrolet Caprice comes on because there is something on the gauges that requires attention. It is a good idea to take the vehicle to a mechanic when this light comes on.
Chevy sells a tank additive that removes corrosion from the sending unit that uses resitance to gage how much fuel in tank. Check your local dealer for the additive, the gage usually shows an erratic reading due to corrosion, bad fuel quality at the pumps.