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oldjohnt

Ford V10 Oil Pressure Gauge

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So the other day I'm driving my  Class C Ford E 450 Super Duty with the V10 towing my Honda CRV 4WD when all of a sudden a red light appears on the dash "check gauges" and the oil pressure gauge has fallen down to dead zero *&^%$#@..  I start to pull over and shut down when all of a sudden light goes off and oil pressure gauge jumps back to normal. There was NO rattling or lifter noises whatsoever.  I check under the hood for leaks and check the oil and all is fine and it stayed so another couple hours no problem since.  Of course I will inspect the sensor and its electrical connection and hope it isn't any dash circuit board problem grrrrrrrrrrrrr Anyone else experience that on their Ford V 10 ???

I was thinking if the computer got a no or low oil pressure signal why wouldn't it go into the limp home or shut down mode, but it ran perfect all the time, any thoughts from the Ford computer experts ????? 

John T   I hate intermittent problems especially electrical 

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53 minutes ago, oldjohnt said:

Anyone else experience that on their Ford V 10 ???

I had a similar problem with our F53 chassis motorhome powered by the V10, only our case I started the engine and got no oil pressure. I shut down and called the Ford shop and they assured me that if there truly was no oil pressure it would sound noisy. I then drove to the Ford shop and they found wires to the pressure gauge were chewed by a mouse. 

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11 hours ago, Kirk W said:

I then drove to the Ford shop and they found wires to the pressure gauge were chewed by a mouse

Thanks Kirk, I do have those pesky critters hanging out grrrrrrrrrrrr. I just returned home for a while and the wiring and connections is the first place I will check. I don't believe there was any actual loss of oil pressure despite the gauge's erratic indication, as I mentioned there were no tell tale sounds whatsoever (typically hydraulic lifters begin to chatter).

PS some gents keep a small light under their RV at night claiming that deters the mice???

PS At one point on that trip I did detect a slight smell of perhaps what I will describe as "hot or burning mice nest" I didn't find anything obvious under the hood and it went away soon hmmmmmmmmmmmmmmmm  ???

Hope you didn't get rained out down there the past months, I will be headed your way soon this fall, ending up in Lakeway Texas over Thanksgiving

John T 

Edited by oldjohnt

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A sure sign you have lost oil pressure is the rocker arms will start ticking. There the last to get oil via the lifters. Shut her down before you destroy the bearings.

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26 minutes ago, beemergary said:

A sure sign you have lost oil pressure is the rocker arms will start ticking. There the last to get oil via the lifters. Shut her down before you destroy the bearings.

The Ford V-10 is a SOHC engine, and uses roller followers that "connect" the camshaft(s) directly to the valves. As such there are no lifters, pushrods, rocker arms, etc. as are found in an OHV engine. 

However, if you completely lose oil pressure things will get noisy, eventually!

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