I have the same problem. I have noticed the oil guage sticks at 40psi even after overnight. I dont know why this is but it may be related. I am trying another sending unit tonight. I'll let you know how things work. OK I had this problem to it's a plug in the dathbord just live with it. I fixed mine but not worth the truble.
See related question below.
When one of your gauges shows something abnormal, your "check gauges" light will come one. Chances are you're low on motor oil. When you corner, the oil will slosh away from the pickup, causing your oil pressure gauge to read zero for a second. This in turn causes your check gauges light to come on, but by the time you look at your gauges, the oil has settled in the pan is your oil pressure is reading normal again. When you see the check gauges light and the gauges are reading fine, check your oil.
The "check gauges" light comes on when one of the sending units detects something is not right. It could be low oil pressure, engine over heating or low voltage. The next time it comes on CHECK GAUGES.
Check the gauges. One or more of the gauges must be out of normal range to trip the "check gauges" light.
check the crank shaft actuator?
The check gauges light means that one of the gauges is out of the safe range.
Answer location of check gauges lightthe check gauges light is on your instrument panel when it comes on it lights up saying check gauges
When the check gauges light comes on it is telling you to check the gauges because at least one of the gauges is out of normal range. It could be low oil pressure, engine over heating or low voltage.
The check gauges light stays on when one of the gauges is out of the safe or normal range.
There is a fuse for the gauges, check it.
My older Blazer has a 'check engine' light and also a 'check gauges' light. When the 'check gauges' light is on, check your other gauges like the temp and volt gauges. One of them may be showing something different than normal.
No.