"real" oil pressure gauge - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 12 (permalink) Old 11-18-2011, 01:35 PM Thread Starter
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"real" oil pressure gauge

So last night I tried the real oil pressure gauge trick. I put a sending unit in place of the pressure switch and put a jumper on the back of the cluster for the oil pressure gauge. It works, not much movement on the gauge but instead of knowing you lost oil pressure when it gets low enough to turn the switch off at least now if it starts to drop you will see it happening and be able to hopefully stop before any damage is done.
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post #2 of 12 (permalink) Old 11-18-2011, 05:04 PM
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Re: "real" oil pressure gauge

I wonder how your pcm will like that, it looks for an on or off from that sender.

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post #3 of 12 (permalink) Old 11-18-2011, 05:52 PM
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Re: "real" oil pressure gauge

It will stop running before you damage anything without oil.
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post #4 of 12 (permalink) Old 11-18-2011, 07:04 PM Thread Starter
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Re: "real" oil pressure gauge

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Originally Posted by gsxr1216 View Post
It will stop running before you damage anything without oil.
Yea I knew that, but I was just curious. Wonder why Ford didn't make it an actual gauge in the first place.
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post #5 of 12 (permalink) Old 11-18-2011, 07:05 PM
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Re: "real" oil pressure gauge

$$

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post #6 of 12 (permalink) Old 11-18-2011, 08:10 PM
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Re: "real" oil pressure gauge

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Originally Posted by f250towrig View Post
Yea I knew that, but I was just curious. Wonder why Ford didn't make it an actual gauge in the first place.
You won't find a stock vehicle out there with a actuall oil pressure guage. It just isn't Ford, and as was said it is all about the $$$$$. That along with 99% of the vehicle owners out there wouldn't know what a real oil pressure guage was for.

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post #7 of 12 (permalink) Old 11-18-2011, 08:43 PM
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Re: "real" oil pressure gauge

The PCM won't care since it only sees the Engine Oil Temp (EOT) from the low pressure soil side of things. The gauge/instrument cluster board is the only thing the switch connects to. Cheers!

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post #8 of 12 (permalink) Old 11-19-2011, 03:09 AM
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Re: "real" oil pressure gauge

My gauge 'switch' used to act goofy so I checked the oil pressure at the reservoir and it was just fine. I did this mod and like it. Depending on the rpm and temp the gauge will show readings from the N to the L in NORMAL ( on N at hot/idle and around L at cold/idle) and usually sits between the R and M above 1500. Even though its not scaled, it now provides a pressure reading-- so like the OP said, its easier to know if something starts to go wrong.

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post #9 of 12 (permalink) Old 11-19-2011, 04:46 AM
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Re: "real" oil pressure gauge

Quote:
Originally Posted by Bugman View Post
You won't find a stock vehicle out there with a actuall oil pressure guage. It just isn't Ford, and as was said it is all about the $$$$$. That along with 99% of the vehicle owners out there wouldn't know what a real oil pressure guage was for.
My 95 Trans am had one in the factory cluster that swung with pressure. It was nice because sometimes my coolant temp didnt work so I went by oil pressure, I knew the motor was warm once it dropped to lower PSI at idle.





back on topic: OP, do you have a part number you used for the oil pressure sensor? I am interested in doing this mod as well.

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post #10 of 12 (permalink) Old 11-19-2011, 05:31 AM Thread Starter
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Re: "real" oil pressure gauge

Sending unit out of a Ford with a 400 in it. I used a 80 bronco. You need to take the 20 ohm resistor out and replace it with a jumper on the back of the cluster.
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