I noticed on the car I am about to buy the check guages light is on for the low oil pressure. I also noticed the actual guage does not go up or down even when the car is off. It just doesnt move. Is this a major problem, and can it be fixed easily. What would cause this to do this.. I also cannot read the drivers information center cause the oil pressue light keeps chiming and no way to get into the info like avg fuel etc...so you gurus help me out, am I buying into a lemon.

sounds like your sensor went bad, most of the time the gauge goes all the way pegged to 120 so a check gauges light never comes on

what year and trim is your car? putting that in your signature will help us help you faster because of the differences in the cars

It is a 2001 Bonneville SSEi...no sunroof. The local auto mechanic says it is a dealer part and he cant order it...he says the whole instrusment cluster has to be removed to fix it.,..I think that is BS.

What do you think.

that'* bs if it is the oil pressure sensor then it is on the back of the motor and it'* pretty cheap part to replace you can do it your self most of us have

how hard is it to replace are we talking hours and how much is the part? I am not mechanically incllined so it would be a challenge for me....Let me know the details on how to chnage it and where to buy it from

Oil Pressure Switch/Sender by BWD - Part S4201 - Advance Auto Parts
takes about 10-15 minuites to do located on the back of the oil pand towards firewall

Here'* the location. https://www.gmforum.com/t284737/

Cost is between $40 and $50 at RockAuto Auto Parts

Is that underneath the car cause I don't have a lift.

Yes, under the car right by the oil filter. no need for a lift, just need a jack and a jack stand and your set. Unplug the sensor and use a wrench to remove the sensor, turn in new sensor and plug back in.

I even did it and I have big wide hands, easiest just to do it when you change your oil

I think I got it at AutoZone for $40