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Junior Member
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3 Posts
Discussion Starter #1
My dad has an 07 classic. The low oil pressure light comes on and you have to put the truck in neutral and rev it up so the oil pressure builds. Sometimes it does it when your on the highway running 65-75, then it does it when u slow down or get off the exit. Then it just goes on randomly when ur driving up the road and stop at a light. Its been to the dealer and they say nothings wrong. Any help would b appreciated.
 

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CRAZY CANUCK
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4,320 Posts
i know this may sound like a dumb question, but have you checked the oil level lately??
 

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Junior Member
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Discussion Starter #3
Yes. Im not a 15 year old kid here asking. It does it even rite after you change it just asking if anyone else had this problem.
 

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Administrator
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12,738 Posts
Don't take offense to it. I had a 7.3L that owuld not start, I was told to check the oil (I thought it was fine) after checking everything else, turned out the oil was low. LOL

The pressure is low in the trucks, but I have never had the light come on.

What kind of oil/filter are you running?

Is the truck stock?

How many miles on it?
 

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Junior Member
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Discussion Starter #5
Yes, I have a 7.3 myself and have had the same problem your talking about. But I havent had anyone w/ this prob on the d-max. I have a couple friends w/ them and no prob.
 

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truckn'
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1,720 Posts
sending unit?
 

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truckn'
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the dash gauge itself?
 

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Gone Fishin...
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If you want us to help you, you need to give us some more info.
:whs

I'm curious as to the filter being used.
 

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truckn'
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your canooter valve isnt opening all the way...:bang
 

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dieselgeezer
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18 Posts
The LBZ runs low oil pressure at idle normally. 30psi or less. Unless the engine has really high mileage or has been poorly maintained or abused, I would have a mechanic verify the gauge reading to rule out a faulty sending unit or dash gauge.
 

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Powered By Ford
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Hook a scan tool to it and monitor oil pressure through the ECM
 

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CRAZY CANUCK
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Mine runs 35-65psi normally, depending on engine temp, load, throttle, oil viscosity(i use 5-40 syn)
 

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ADMIN/MAFIA
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Powered By Ford
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Mine used to run 34psi at idle and 60+ at speed
 

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Junior Member
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14 Posts
I would test with a manual gauge, if you test through the ECM it would be using the same sending unit, but if the ECM reading is different the cluster could be bad, but I would not think that a bad cluster would trip a trouble light.
 

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Junior Member
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39 Posts
Where`s the answer to the questions he was asked. I want to know what he found out, unless it really was low on oil. If it wasn`t the canooter valve it might be the foofoo valve. Questions begging for answers.
 
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