the oil presser going up and down is why your check guadges light is coming on.. probly need a ned oil pump but check the sender first, much easer and cheeper to replace..
Yes if one or more gauge is reading wrong
Either your temperature gauge is reading too hot , your oil pressure is too low , or your gas gauge is at or near empty
It means look at your gauges. Something is wrong! Does your temperature gauge show that it is overheating? Is the oil presure where it should be? Check your fluids.
There could be a glitch on the computer in the vehicle. There could also be a ground in the wiring harness that goes to the gauge lights.
A diaphragm air gauge.
Check to make sure that the temperature sensor is good. A bad sensor is commonly the cause of the temperature gauge not working.
If you call your local GM dealer with the VIN off of the truck they will check for any open recalls.
Definitely! I had this problem diagnosed and found that the gas gauge is fine, but the internal float sticks and this is a common problem. Obviously the "Check Engine Soon" comes on because of this and the gas gauge is almost always incorrect.
No The dash with gages will not work due to the engine sensors are different from gages to lights. I have changed 4 of my Chevrolet Celebrities from idiot lights to gages. The gage cluster is a direct fit, the voltage gage will work with no alteration. The temp sensor is readily changeable by purchasing the proper sensor for your car. The fuel gages are the same.
Hopefully (for you) just a bad oil pressure sending unit Install a manual gauge to actually check the vehicle's oil pressure
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.
Buy a new Speedometer cluster. The external Temp gauge is extremely rare