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Does the engine have a mechanical fuel pump? Pull the dipstick and let a drop of oil fall onto a completely clean and dry fingertip. Does the oil quickly track out along your finger ridges or does it hold together in a tight circle? Automatic or standard transmission?
Quote from: bd on September 05, 2017, 01:01:55 PMDoes the engine have a mechanical fuel pump? Pull the dipstick and let a drop of oil fall onto a completely clean and dry fingertip. Does the oil quickly track out along your finger ridges or does it hold together in a tight circle? Automatic or standard transmission?Oil doesnt quickly track out but it does after couple seconds. I also pulled a couple plugs, 1 is covered in fuel for sure. Still wet and wreaks. 3 looks like it might be lean but ok.
Modulator valve is leakingSent from my SM-G935V using Tapatalk
Quote from: 1993f250 on September 05, 2017, 02:17:46 PMQuote from: bd on September 05, 2017, 01:01:55 PMDoes the engine have a mechanical fuel pump? Pull the dipstick and let a drop of oil fall onto a completely clean and dry fingertip. Does the oil quickly track out along your finger ridges or does it hold together in a tight circle? Automatic or standard transmission?Oil doesnt quickly track out but it does after couple seconds. I also pulled a couple plugs, 1 is covered in fuel for sure. Still wet and wreaks. 3 looks like it might be lean but ok.The oil drop should retain a circular shape on your fingertip. Check the oil for fuel dilution, especially if it seems to be making oil. Severe fuel dilution of the engine oil will result in crankcase fluids pushing past the piston rings as the fuel washes the oil film off of the cylinder walls. It will also allow combustion gases to blow past the rings and pressurize the crankcase. Pistons and rings starving for lubrication, not-to-mention the bearings, is a bad thing.ATF, if drawn into the engine and burned, will cause copious white exhaust smoke. Since the white smoke consistently occurred at minimum manifold pressure, AFT in the combustion chambers was a good bet. However, the blueish tint of the exhaust smoke and crankcase vapor again suggest fuel dilution of the oil that is preventing an effective ring seal. To avoid the potential for costly engine damage I recommend that you follow up on this possibility before running the engine again.
Not to belabor the point, but to clarify, it seems you maybe experiencing more than one issue - the white smoke from one cause (possibly ATF), the bluish smoke from another. If you do have fuel in the oil, the fuel pump diaphragm is probably perforated and a pressure test may not provide a reliable diagnosis. Keep us apprised.