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Power Strokes
6.4 Tech
cylinder contribution test
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[QUOTE="Connor M, post: 1557992, member: 26837"] So my truck is making a lot of oil, I haven't drained it to measure yet but it's 6-8 inches up the dipstick. It's not throwing a code, but I did a cylinder contribution test and it shows -2 for one injector and -1 for two injectors. Problem is I have no frame of reference, how bad is a -2? The snap-on scanner I have access to doesn't have an option for percentage, as far as I can tell. I'm thinking an injector stuck open, because there's minimal blowby and it sounds perfect, it just smokes and feels sluggish, it's burning oil out the tailpipe. I'm just looking for help diagnosing it before I go two far down the wrong path. [/QUOTE]
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