Help! Won't start, oil pressure issue - Ford Powerstroke Diesel Forum
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Old 08-23-2013, 01:54 PM
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Help! Won't start, oil pressure issue

Truck shut off on me, no oil pressure on cranking. We changed the pump, still no go, we also changed the oil pressure sensor, regulator & a misfiring injector...... Still takes forever to build up pressure on cranking, my awesome mechanic is now stumped. Anybody have any other suggestions so we can get this fixed ASAP thanks. Same result hot or cold.
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Old 08-23-2013, 02:15 PM
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Originally Posted by Powerstroke 16 View Post
Truck shut off on me, no oil pressure on cranking. We changed the pump, still no go, we also changed the oil pressure sensor, regulator & a misfiring injector...... Still takes forever to build up pressure on cranking, my awesome mechanic is now stumped. Anybody have any other suggestions so we can get this fixed ASAP thanks. Same result hot or cold.
Codes???

Which pump, lpop or HPOP? Which oil pressure sensor? Which regulator?

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Old 08-23-2013, 02:19 PM
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Hpop, no codes & regulator that is behind turbo on hpop, & sensor on passenger side valve cover
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Old 08-23-2013, 07:02 PM
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Cps? Are you seeing tach move while cranking?

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Old 08-24-2013, 07:36 AM
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Yes, it does
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Old 08-24-2013, 08:06 AM
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Stand pipes, dummy plugs or STC fitting.
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Old 08-24-2013, 12:27 PM
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Are you talking about low pressure oil reading on the dash is taking forever to build? If that is the case and you replaced everything (except the standpipes and dummy plugs), you might be looking at replacing the gerotors (lpop) and possibly the cover. It is external to the engine and behind the dampener on the crank. The oil pump gears can be bought separately and not as the kit (which includes the front engine cover). $60 vs $500+.
I am having a similar issue with no low pressure building but I think mine is faulty wiring. I have to stick a mechanical gauge where the low pressure sensor is and take a reading.
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Old 08-24-2013, 04:27 PM
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Low oil pressure is fine on dash, I am talking about high pressure
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Old 08-25-2013, 01:58 AM
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Keep in mind the dash gauge is only a switch has a 7 psi rateing, Ford says 45 psi min oil pressure to operate correctly. 45 and 7 psi are a long ways apart. Not much use in diagnostics.
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