GMC INSTRUMENT CLUSTER GAUGES OIL PRESSURE

I Have A 1995 Gmc G30 Van With Diesel Motor. It Has 140k, And Runs And Drives Fine. I Just Purchased It At An Estate Sale. When I Got It...

Oil Pressure Gauge Is Sitting At 3:00 No Movement Speedometer Quit Working Where Do I Start

My Oil Presure Gauge When You Turn Key On And Run Vehicle Goes To 550, Somtimes When Driving Gauge Goes To 0 Or Stays At 550, Could You...

Hi, I Can't Seem To Identify This Specific Issue In The Other Threads. Every Time I Take A Hard Or Semi-hard Left Turn, My Gauge...

Just Replaced The Oil Pressure Sensor. Fresh Oil Change With Filter. The Gauge In The Truck Reads Just Below 20. When Driving With Rpms Up...