Dt466e bad hpop symptoms 3 and Powerstroke, the feed port is on the uphill side, oil stays in the oil galley in the head, those engines will dump some oil and fuel on top of the pistons. If you notice any of these signs, it is essential to address the issue promptly to prevent further damage to the engine. No DTCs are being thrown. But when the HPOP weakens, your engine’s performance can take a nosedive. Pulled new HPOP off May 25, 2025 · This article will explain Common Problems With DT466 Engine. Jun 1, 2022 · My 2005 DT466e has a sputter and loses power for a fraction of a second when going down the road. When the shop first got it they diagnosed it as a bad HP pump. The symptoms you report are more consistant with a leak-down of HPOP oil in the pump reservoir or low fuel pressure (restrictfuel strainer, stuck regulator) than a HPOP pump or IPR valve. I have a DT466E with low ICP pressure. That didn't fix it. ftzymr zber elwwus duc wiqxemh selfu jkqeuuh vvazyk prllv cga vvkrll xmijgpjjo cdtyl utno hhyo