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How accurate are the stock oil pressure gauge on a 92?

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Old 03-06-2023, 08:12 PM
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How accurate are the stock oil pressure gauge on a 92?
Seems like it reads a bit low, more towards the bottom quarter than in the middle.
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Old 03-06-2023, 08:58 PM
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Not very accurate.

Check it with a real oil PSI gauge.
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Old 03-07-2023, 09:57 PM
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Sigh, add to my list of mods- gauges. Lots of gauges. Already want a tach, just like the one that was on my manual 93
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Old 03-16-2023, 10:21 AM
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Not a lot !




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Old 03-21-2023, 02:03 PM
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Mine was reading low, I replaced the sensor on the block. That made a big difference.
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Old 03-23-2023, 09:05 AM
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Diesel makes the oil dirty in a hurry. It is not uncommon for the sender to "plug up" with soot. I've replaced a couple in my diesel lifetime. Don't bother cleaning it, replace it. You can't get it all out.
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Old 03-23-2023, 04:13 PM
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Had one on my 89 motor that was triggering the low oil pressure light and got super worried so hooked up a manual gauge...turned out I had 30-40lbs at idle and 60-80 at throttle.
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Old 03-23-2023, 04:39 PM
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Originally Posted by 97catintenn
Mine was reading low, I replaced the sensor on the block. That made a big difference.
I will have to look up where it is, but this sounds like a great place to start right off!
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Old 03-23-2023, 04:42 PM
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Originally Posted by thrashingcows
Had one on my 89 motor that was triggering the low oil pressure light and got super worried so hooked up a manual gauge...turned out I had 30-40lbs at idle and 60-80 at throttle.
I am working towards the pillage gauge cluster, and I am going to have a manual gauge for sure.
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