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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

high LPOP

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Old Sep 10, 2012 | 01:15 PM
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high LPOP

My '03 has been running very well since we got a new HPOP pump a year and a half ago. Thanks to advise here we have a LPOP guage as well as an older style Insignt monitor. The oil pressure guage had been very uniform at indicated c78 psi. Just lately after cycling it indicates 78 +/- at start-up but quickly goes to 98psi as we get underway with some flutuation to maxing out at 100. No change from the mid range indication on the dash 'idiot' dial. Any idea what may be going on or what to check? We have no running problems at all.
 
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Old Sep 10, 2012 | 03:47 PM
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Sounds like the LPOP regulator is binding in the bore and not operating properly.
 
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