Oil Pressure Help Needed! - 1993/p30/454
I have a 1993 National SeaBreeze / P30 Chassis/ Chevy 454. Two days ago I checked fluids, everything was good, it ran just fine, drove it to dump it, parked it. Went to turn it on today, and oil press...
Forum Discussion
Ydor,
Richard is wonderfully accurate.
First question: Does that gage go up before the engine starts?
If yes, that is a failed or shorted wire.
Another test for a shorted wire, pull the terminal off the sending unit.
What happens? (if you can reach it.)
If you run with the sender disconnected and the pressure drops to zero, that just means the short has cleared. Reconnect it and look for the damage where the mouse ate the insulation.
If it does drop to zero and you are worried, let it idle down and listen for the lifters (lash adjusters) to start clattering. When they don't get the lube oil pressure they need, they complain!
Lastly, there is just no way a BB can have that High a lube oil pressure. It just can't happen. The OE pump can't do it. (IMHEO)
So run it and fix the gage later.
Matt - a refugee from the engine labs in Detroit
Richard is wonderfully accurate.
First question: Does that gage go up before the engine starts?
If yes, that is a failed or shorted wire.
Another test for a shorted wire, pull the terminal off the sending unit.
What happens? (if you can reach it.)
If you run with the sender disconnected and the pressure drops to zero, that just means the short has cleared. Reconnect it and look for the damage where the mouse ate the insulation.
If it does drop to zero and you are worried, let it idle down and listen for the lifters (lash adjusters) to start clattering. When they don't get the lube oil pressure they need, they complain!
Lastly, there is just no way a BB can have that High a lube oil pressure. It just can't happen. The OE pump can't do it. (IMHEO)
So run it and fix the gage later.
Matt - a refugee from the engine labs in Detroit
