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post #1 of 12 Old 01-27-2008, 09:28 PM Thread Starter
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Dumb question

I haven't had my 97 F250 long. Can somebody tell me if the factory oil pressure guage on the dash is reading engine oil pressure or HPOP pressure?
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post #2 of 12 Old 01-27-2008, 09:37 PM
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Should be reading Engine Oil Pressure.


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post #3 of 12 Old 01-27-2008, 09:47 PM Thread Starter
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Thanks bigcountrysg! One or two more questions if I could?? When I am cranking and it won't start, should I see any oil prssure building? Also, when it starts (Ha Ha) the pressure snaps up to half on the guage faster than I have ever seen it on any other vehicle. Is this normal?
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post #4 of 12 Old 01-27-2008, 10:22 PM Thread Starter
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Anybody???
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post #5 of 12 Old 01-27-2008, 10:38 PM
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it reads engine oil pressure but i believe it is still an idiot gauge that shows you have oil pressure and doesnt change if oil pressure changes as long as you have a minimum presure the guage registers and there is an idiot light that goes out when the minimum is reached. some have after market gauges that read actual pressures. anyone correct me if i am wrong
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post #6 of 12 Old 01-27-2008, 10:42 PM Thread Starter
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Thanks for the info!
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post #7 of 12 Old 01-27-2008, 10:47 PM
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mine comes up fast with cold oil and settles down a little with warmer temps.
the snap may be electrical but you should see a little motion with throttle

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post #8 of 12 Old 01-29-2008, 05:35 PM
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Yeah, I've got a 97 F250, too. I remember reading somewhere that the gauge will show a reading for anything over 5psi. So, mines always showing right in the middle too.
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post #9 of 12 Old 01-29-2008, 05:43 PM
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I believe two of you are right, ford is a big fan of boolean gauges, 1 or 0 on or off, the slight variation you see with throttle is probably the fluctuation in voltage changing the voltage holding the needle, i think ford did away with the boolean gauges at some point in time,

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post #10 of 12 Old 01-29-2008, 05:50 PM
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i think i know why they went to them also, remember how all all old fords had minimal oil pressure? its because they measured it at the back of the motor, or after the journals and lifters and everything had what they wanted. so instead of everyone bein scared of the low oil pressure when they got some miles on em they just made it fine or none

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