2003 Dodge 1/2 Ton

[jlwelding]

I bought this truck about 5-6 weeks ago so just now finding all the bad habits. So only one time a day (mornings) the oil pressure gauge wont come up, check gauges light comes on. So I turn it off start it back up and its fine the rest of the day. At first I thought trash in the sender but its every day.  Oh and its the 5.7 Hemi

[Kotta390]

That is kind of odd. I frequent the Hemi truck forums and I ave never heard of this issue. At least not a common issue between the 3rd gen trucks that I know of. Obviously it's an electrical issue and I would see about looking at replacing your oil pressure sending unit. I highly doubt it is the gauge cluster and have you changed your oil recently?

[flagmanruss]

I've had senders stop working or go intermittent.  Diaphragms rupture too.  Several times, the senders had oil in them when removed.  Great fun.  Try the easiest/cheapest things first.

[Mopar1973Man]

I've had senders stop working or go intermittent.  Diaphragms rupture too.  Several times, the senders had oil in them when removed.  Great fun.  Try the easiest/cheapest things first.

 

I would also throw a test gauge on it as well just to verify the pressure. I would follow Russ though.