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Old 12-10-2010, 09:37 AM
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engine acting up

Maybe someone can help me out. If I press the go pedal, no matter how much, my truck doesn't want to go until about 1500 rpms then it takes off with power. The engine will get louder but doesn't produce the power until 1500 rpms. Once it hits 1500 rpms the boost comes and it accelerates normal. It is quite noticable pulling a load. Also it has a differant exhaust tone than it did before. It sounds kind of mellow/quiet out the exhaust. It used to sound loud and throaty. I noticed the exhaust doesn't smell like a normal diesel smell. It smells kinda oily or like a tint of something rotten. In the past two years it has gotten a new hpop, icp, ipr and a wicked wheel. fuel pressure is at 60psi and no play in the turbo shaft. Also, if I have my chip on race setting and hammer on it, when i let off the engine/injectors make a quick ra ra ra ra sound for a couple seconds. it also does that for a couple seconds if i start it in that setting when it is a warm engine. No check engine light, no codes, and I've been trying to figure this out for some time. Any ideas or similar problem solutions would be great. Thanks
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Old 12-10-2010, 04:48 PM
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I work at a ford dealer and whenever a truck comes in with a chip/programmer, we wont work on it. not saying its your problem but we've seen it where the chips/programmers actually cause problems, and if you try to reflash a module to fix some problems, it will make it worse. like I said, not saying thats it, just suggesting check it out.
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Old 12-13-2010, 09:01 AM
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yeah, a little over a year ago, I called a diesel shop to have them look at it, and I asked them if they wanted me too take the chip out before I took it there and they said it won't matter. I left it in. They gave me my truck back and said my IPR was sticking. They suggested to try a new IPR and if thats not it a new hpop. But they couldn't say for sure since it was chipped!! I now know to take the chip out for sure even if the guy sitting behind a desk, answering calls, says it won't matter. New IPR did nothing, new hpop did nothing. Done with throwing parts at it. I'm going to try and pull the chip out and drive it with it out for a while as soon as the temps are above 0. I also plan on new turbo seals, and injector orings.
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Old 12-13-2010, 03:48 PM
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alright sounds good. post back with results
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