97 LX450

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Joined
Jan 18, 2015
Threads
7
Messages
20
Location
Plymouth Indiana
I noticed earlier when I was leaving for work the oil pressure gauge only climbed just under a quarter, then when I started acceleratin it stayed there....So I pulled in the gas station shut it off, waited a couple minutes then when I started it back up it climbed normal to around half then was moving normal after that. Can those gauges stick, or could it be the sending unit, Or does the Sending unit just send signal to the low oil light? Anyone have any ideas?

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You've got your oil pressure sending unit.
Located on the passenger side if the motor just aft if the a/c compressor. It's a little smaller than a hockey puck with 2 wires. Wires are part of a sub-harness that starts just forward I'd the air cleaner mounted on the wheel well. Thats for the oil pressure gauge.

Then you've got your low oil level indicator. It's on the driver's side and in more or less the same position. Maybe it's just bit further aft and lower than the sender? Less to see there, but it's more of a sqaure shaped thing with 4 bolt heads showing and 2 wires.
That's for the idiot light.

There are these and many many more ideas contained in many many threads.

If it were me, I'd check the wires and clean the connections to the oil pressure sending unit first.

Then I'd replace the head gasket.
Kidding about the head gasket, but wanted to be the first to mention it!
 
Last edited:
Low oil pressure indicator is common in the 80s.
 
If it has oil in it and its not rattling. Drive it and don't worry about.
 
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