Erratic oil pressure

[BoldlyGoing]

Either I’ve got oil pressure issues or gauge issues.


Seems like from time to time, if I’ve been driving for a while, then have to stop for some reason (lights, traffic, whatever) as soon as the RPM’s drop, the oil pressure gauge drops to zero. Soon as I’m back on the gas, it’s back up. Though now that I’ve been paying attention, it appears that the gauge is on the high side.

Then some days it just sits there like normal.

I have a new MOPAR sensor at the house, but haven’t had the opportunity to install it and see if that’s the issue.

Anyone else experienced this?

I’ve only got ~180k on an ‘06 so that seems somewhat early to be seeing bearing issues no?

 

[Paul Land]

Either I’ve got oil pressure issues or gauge issues.


Seems like from time to time, if I’ve been driving for a while, then have to stop for some reason (lights, traffic, whatever) as soon as the RPM’s drop, the oil pressure gauge drops to zero. Soon as I’m back on the gas, it’s back up. Though now that I’ve been paying attention, it appears that the gauge is on the high side.

Then some days it just sits there like normal.

I have a new MOPAR sensor at the house, but haven’t had the opportunity to install it and see if that’s the issue.

Anyone else experienced this?

I’ve only got ~180k on an ‘06 so that seems somewhat early to be seeing bearing issues no?

If pressure @ true zero you would hear engines valves and knocking, 1200 RPMs at idle would blow engine. I lost Oil Pump pressure at stop sign pulled across street to park. Engine was knocking and Rattling with in seconds. Like you said bad gauge or sensor check sensor for partial clog.

 

[weldedcambolt]

my sensor went out on the 2002 an it was bouncing up an down, an all around... till i put a new one in.

 

[Damazzaro]

I mean, aside from it saying 0lbs of pressure it sounds like the gauge is working fine. Oil pressure will change depending on your RPMs.

Now does your gauge have a L and H or numeric values? Because sitting at (L)ow while stopped would be normal while sitting at (H)igh while accelerating would also be normal. Most companies install idiot lights and gauges because people freaked out about their oil pressure "issues." Though I do believe the gauge is meant to sit roughly center for the TJs to display that there are no issues. Unless you notice knocking or sudden surges I'd imagine it's a sensor issue.

 

[Chris]

Sounds like the oil pressure sending unit to me. I'd replace that first, as I'm betting that is the issue.

 

[BoldlyGoing]

I mean, aside from it saying 0lbs of pressure it sounds like the gauge is working fine. Oil pressure will change depending on your RPMs.

Now does your gauge have a L and H or numeric values? Because sitting at (L)ow while stopped would be normal while sitting at (H)igh while accelerating would also be normal. Most companies install idiot lights and gauges because people freaked out about their oil pressure "issues." Though I do believe the gauge is meant to sit roughly center for the TJs to display that there are no issues. Unless you notice knocking or sudden surges I'd imagine it's a sensor issue.

No- generally the needle sits right in the middle. Recently, when I’m idling, the needle drops to 0 and the “Check Guages” light comes on. Soon as I hit the gas, the needle jumps back to its center position.

 

[BoldlyGoing]

Sounds like the oil pressure sending unit to me. I'd replace that first, as I'm betting that is the issue.

Swapped it last night. We’ll see how it does this week as I’ll be logging a bunch of highway miles again.

Here’s hoping that does the trick.

 

[Chris]

Swapped it last night. We’ll see how it does this week as I’ll be logging a bunch of highway miles again.

Here’s hoping that does the trick.

Let us know if it does!

 

[BoldlyGoing]

So far, so good. No more drops indicated by the gauge.

Seems to be fixed!

 

[BoldlyGoing]

Apparently I started 2 threads on this... everythingnhad been fine until just now.

Same symptoms. Gauge drops to zero until I give it a bit of gas.