Zero oil pressure?

[SRadke]

Strange situation here. 03 model HO. Start it in the morning the oil pressure comes up normally and after about a minute drops to 0 and starts chiming.



Take it to the dealer and they install a new sending unit. Go home, fine for a few days and it does it again.



Back to the dealer and they put a new oil pump in. Said the old one was "on the high side of spec".



Home again and it's done it twice since then. Not every time but maybe once a week. I understand the whole gauge is an idiot light thing but am I chasing an electrical gremlin here? There is an error somewhere. Electrical connection, ECM? Any suggestions? TIA.



-Scott

 

[bmoeller]

I would put a mechanical gauge in, even if temporary, to see what is going on. If anything. Could be a gremlin.

 

[SRadke]

At this point I believe it to be a gremlin. Especially after the new oil pump. I just wanted to get your opinions. I should also add the weather was not really cold when this occurred, 40 to 50°.



-Scott

 

[nickleinonen]

gotta be an electrical gremlin...

 

[rbattelle]

I second the notion of installing an aftermarket gauge, just to be sure. Even if it's only temporary. It's the only way to know for sure.

 

[sag2]

Some early 03's had a cluster problem that made the gauge go to zero. Can't recall if it was replace the cluster or just flash it.