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Message: [QUOTE="mandkole, post: 529538, member: 4630"] 126K and 15 years later, if you have original inj orings and IPR orings, its very possible that they are allowing oil pressure leakage. The IPR sticks out from behind the HPOP--has a sheetmetal nut holding the electromagnet on and there is a connector. Its orings are commonly responsible for hard starts or dying after the oil approaches operating temp (because it thins out). Ive never had luck with cleaning one, but others have. Do a little research in the library and use the search function for more info. To get you started with troubleshooting the HPO system: [url]http://powerstrokearmy.com/forums/showthread.php?t=1818[/url] [/QUOTE]

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