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| There was a pip or whatever Nh calls it to change the oil filter base on my T9.645 with an Iveco engine. I think the issue being fixed was the possibility of the bypass valve sticking open and circulating unfiltered oil. I don’t think that would affect the oil pressure but I’ve seen some strange unexpected things happen over the years. They supplied the filter base for free and I swapped it out myself. It might be worth asking about even if that isn’t the problem. | |
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