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Re: 2005 E350 Ambulance - TSB for surging/smoke?
Posted to HD/Fleet Forum on 11/18/2009

How is the oil level, and how old is the oil? Most likely the KOER test is aborting because you haven't gotten the engine oil hot enough to run the test. It has to be higher than 150 degrees, if I remember correctly. Have you tried to do a cold injector buzz t... Login to read more.