Mechanics

I CHANGED THE FUEL PUMP IN MY TRUCK (98 5.4) AND CLEANED THE FUEL INJECTOR, BUT IT STILL RUN SLUGGISH. WHAT COULD BE THE PROBLEM?

1998 Ford Expedition • 120,469 miles

When I start to take off, the truck start slow and if I step on the gas hard I smell something burning. That's only when I step on the gas hard to take off.
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Deshawn
April 20, 2012.



S catalytic converter overheating/blocked?

Tiny
Fixitmr
Apr 20, 2012.