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Low Oil Pressure?

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Old Mar 16, 2009 | 10:12 AM
  #1  
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Low Oil Pressure?

I have a 94 F150 w/ 351. Ive been driving lately and have noticed that the oil pressure gauge is just barely making it into the {normal} range. Now I know that these gauges are not very accurate and are kinda just there to look at, however it seems like it should at least move up (its not even to the 'N' in normal. I use 10w30 oil. Is this a big deal or should I not worry about that gauge?

Thanks
 
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Old Mar 16, 2009 | 10:24 AM
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check with mechanical gauge.
 
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Old Mar 16, 2009 | 01:21 PM
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How many miles on the engine? Does engine temperature effect the pressure reading, typically the colder the engine then higher the oil pressure. When was the last time you changed the oil? Definitely check with a mechanical gauge. I'm guessing but would expect to see between 20-40psi with the engine up to temp.
 
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Old Mar 16, 2009 | 06:11 PM
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The "gauge" will read in the same place with any amount of pressure above the switch closing pressure, usually around 7 psi. Anything below that point will be off the low side of the scale.
 
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Old Mar 16, 2009 | 07:46 PM
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Originally Posted by EPNCSU2006
The "gauge" will read in the same place with any amount of pressure above the switch closing pressure, usually around 7 psi. Anything below that point will be off the low side of the scale.

Good info. I may check it with a mech. gauge if i can get my hands on one just for peace of mind.
 
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