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Oil Gauge or idiot gauge??

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Volkemon

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Oil Gauge or idiot gauge??
« on: October 09, 2022, 10:48:07 am »
Recently had the oil pressure gauge drop to '0' while driving.  :beg  A 'DING' from the dash, the info center said 'Check Gauges' and a small red light lit up below the fuel gauge that said 'Check Gages'. Yes, they were spelled different.  :lol


Stopped, checked things, rolled the window down and CAREFULLY drove home with ears wide open. Sending unit problem was the diagnosis.

Finally went and got a replacement sender unit. KInda small for a gauge output... in my opinion.  (WH)

Just to verify the wiring and gauge itself was OK, I 'shorted' the wire off the sending unit to the block. I was alone, so I took a video to review the test results. Its 15 seconds, check it out.

https://youtu.be/gKG1tlaPjJo

I was a little puzzled.... normally grounding the wire would put the gauge full scale.  This did not. You can see the jump to ~2/3 scale when wire was grounded.  Wire off, and the gauge drops to 0, 'ding' from dash, and red light comes on.

The oil gauge has ALWAYS read at that spot. Does now again.

That gauge is NOT what I thought it was. It will never show me 7/8 scale, 1/4 scale or any other reading but 0 and 2/3.  Its an idiots gauge. Works like an idiot light, but with more 'bells and whistles'.     (exactly)

How idiotic.  It fooled me, however. I had been pleased that Ford gave me both a temperature gauge AND an oil pressure gauge.  Nope. They saved a few bucks and gave us an idiot gauge. Not that big a deal, I think I am 20% irritated that its not a 'real' gauge, and 75% irritated it fooled me this long.  roflol  (5% thinking to myself  'You spent HOW much time to post this?!?  :lol  )

Thought this was of passing interest. Not sure if this applies to the 2008 and later chassis, mine is a 2006.
""You want to save money on travel, drive a Prius and stay at motel 6""  Forum Member Joseph


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mikeh

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Re: Oil Gauge or idiot gauge??
« Reply #1 on: October 09, 2022, 01:08:50 pm »
Yes--I stumbled across that fact some time ago by accident, Volk.  Same in my chassis which is a 2018.  All Ford did was swap out the idiot light for (as you say) an "idiot gauge"--same sensor.  At least when you get a gauge reading you know you have 6 PSI pressure--that's the trigger point of this sensor.
Mike

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donc13

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Re: Oil Gauge or idiot gauge??
« Reply #2 on: October 09, 2022, 01:11:38 pm »
Yes, it also applies to 2008 Ford Super Duty cutaway.  Probably to all of them.
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Don and Patti

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Joseph

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Re: Oil Gauge or idiot gauge??
« Reply #3 on: October 09, 2022, 11:19:26 pm »
Iíve been called worse. 😳

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CalCruiser

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Re: Oil Gauge or idiot gauge??
« Reply #4 on: October 10, 2022, 03:45:17 am »
If anyone wants to TOFTT and install an actual gauge and pressure sender I think (?) the Triton 6.8 uses the 22mm 1.5 thread oil filter sandwich adapter. You would also need a 100psi gauge. GlowShift has an assortment of electronic oil pressure gauges, both analog and digital.

https://www.glowshiftdirect.com/oil-filter-sandwich-adapters/?_bc_fsnf=1&in_stock=1
Goin' where the wind goes...

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Ron Dittmer

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Re: Oil Gauge or idiot gauge??
« Reply #5 on: October 10, 2022, 12:11:43 pm »
Wow, so the oil gauge displays the oil pressure in a fixed gauge position, equivalent to an idiot light?  I did not realize that.  Ford did a bad thing there.

Thanks Volkemon for your research and enlightenment.
Ron (& Irene) Dittmer

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Joseph

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Re: Oil Gauge or idiot gauge??
« Reply #6 on: October 14, 2022, 11:42:24 am »
Iíd be willing to wager that Ford isnít alone in this.