Oil Pressure Gauge

[Kroeter]

My Oil Pressure Gauge on 97 4.0 at times like to jump around causing engine light to come on. WHen this happens NOTHING else seems to be effected, so far. Is this a sign of bigger things to come or just a gauge going bad??

 

[RobertFord]

Could be the oil pressure switch (it's a switch, basically your oil pressure is OK, or it is not) is broken, or the cable linking to it might be defect. I'd check those first. (Engine, driver's side, front, low)