bigblock79 Posted February 22, 2011 Posted February 22, 2011 1997 gmc z71 350 engine, just replaced fuel pump and it didnt fix it... bogs down while accelerating... any ideas?
bluegrassZ71 Posted February 23, 2011 Posted February 23, 2011 +1 for the fuel filter I had a '96 Blazer that suddenly wouldn't go over 55 mph and would lose speed on hills...even with the pedal on the floor. I changed the fuel filter and the problem was gone.
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