Oil pressure guage

[DarylinB]

I have a 2003 Yukon and when I start it, the oil pressure guage goes to 80# right away and stays there. Would that mean the sender is bad or the guage or what? The Yukon has 78K miles on it and runs great.

 

[blueflamed03]

Could be a connection. But should be under warranty, correct?

Welcome to the site, great place for info!

 

[scrtcell]

It is most likely the oil sending switch had the same problem oil pressure gauge pegged out and thought it was cluster but after replacing that sending switch the problem went away....