low oil presure reading

Mark_vaughn · Post by **Mark_vaughn** » Tue Oct 03, 2006 9:14 am

I have an ohm meter. What reading should I have? Or am I just looking for a change, if so what range?

So Cal Mark · Post by **So Cal Mark** » Tue Oct 03, 2006 10:17 pm

I couldn't find any specs on low, mid, and high readings, so I'd suggest testing the sender resistance with engine off, idling and higher rpm and compare readings. I'll try and come up with some numbers for you.

Mark_vaughn · Post by **Mark_vaughn** » Tue Oct 03, 2006 10:23 pm

Thanks Mark.

So Cal Mark · Post by **So Cal Mark** » Wed Oct 04, 2006 10:50 am

with the ignition off, resistance from the sending unit to ground should be 280 to 300 ohms
with the engine idling, resistance from the sending unit to ground should be 150 to 180 ohms
if your sending unit is within range, you'll have to replace the gauge

Mark_vaughn · Post by **Mark_vaughn** » Fri Oct 06, 2006 12:17 am

I don't know what I did, but after I tested it and messed with it for a while, it registered pressure again. Probably needs to be replaced, but it will work for now.

So Cal Mark · Post by **So Cal Mark** » Fri Oct 06, 2006 12:52 am

if you removed the sender, perhaps it had some debris in it, preventing oil from getting into it