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Old 03-01-2015, 06:22 PM   #1
Railroader
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3.1L Very Poor Gas Milage Now

Getting unusually very poor gas mileage, No codes set yet, scanner shows a pending PO301 misfire on cylinder 1. After changing intake manifold gaskets, engine runs very well, better than it has in a long time, does not appear to be missing, checked gas lines, appears there are no leaks. I do have a p1870 code, Transmission component slipping, have not noticed any noticeable problems with the transmission yet. Thoughts?
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