00 7.3 low oil pressure, runs bad, dies on first start, runs perfect second start - Ford Powerstroke Diesel Forum

 
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post #1 of 4 Old 12-25-2011, 07:50 PM Thread Starter
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00 7.3 low oil pressure, runs bad, dies on first start, runs perfect second start

Like the title says. When turned on the first time, it has low oil pressure, runs rough, and dies if you don't turn it off, but when you start it the second time, it runs perfect.*

Any ideas?
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post #2 of 4 Old 12-25-2011, 07:53 PM
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Have you tested the actual PSI or just using the dash gauge?



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #3 of 4 Old 12-25-2011, 08:06 PM Thread Starter
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Quote:
Originally Posted by jesilvas View Post
Have you tested the actual PSI or just using the dash gauge?
Thanks for the welcome and the reply!

No, I am going by gauge only.*
Would also, like to add that it only does this in the morning or after its been sitting a little while.*
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post #4 of 4 Old 12-26-2011, 07:55 AM
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Ok. Could be the LPOP going out but I'm not sure.
First and most obvious thing would be to check the oil level and make sure it's in good shape as far as needing a change or not.
You can also pull the plug on the high pressure oil pump reservoir and make sure that the oil is within an inch of the top of the reservoir before you ever start it the first time and then after it dies you can check it the second time before you start it too.
Other than that, you're going to need to get either the AutoEnginuity software or a manual gauge to measure you low oil pressure to see if that is the culprit or not.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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