Quote:
Originally Posted by EcoBill
yea im currently in the middle of fixing it now...the previous owner put an UpSolute chip in it...would that be causing all of the soot? he gave me the original chip as well...wasnt really sure what the chip did.
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The first thing I would do would be take that chip out and try the factory one. I'm assuming it's made for performance and not fuel economy. And I know that diesel trucks with performance tunes smoke like chimneys.