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West Central Iowa | The change in sound you are hearing is the load on the engine increasing when the pump goes into stroke to pump oil and trying to maintain standby pressure. I am pretty sure the problem is in this SCV. The change in sound is from the pressure and return valves from the same side being open at the same time, creating a large hi pressure leak to return. Are you sure you have all of the parts installed correctly. When you say you redone the procedure two times are you just talking about just the adjustment or did you verify that you have all the cams installed correctly? Are you sure you have all the other parts installed correctly? | |
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SCV adjustment
