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First off your truck should be throttle body injection (TBI) and not carburated. If you have replaced the fuel filter and rebuilt the throttle body itself then the last places you should look at would be the injectors on top as they do tend to get clogged. Sometimes they can be cleaned sonically and perform like new sometimes they need to be replaced. The other place to look would be at the fuel pump itself. It is located inside the fuel tank and many times the sock filter that is located on the pick up tube inside the tank can become clogged. Since you ran the vehicle out of gas, it is quite possible that the fuel pump itself got hot and is now only about 80% effective (or less). In tank fuel pumps rely on the fuel flowing through them to keep them cool. If a vehicle runs out of fuel even once, it can be enough to damage the pump from delivering enough fuel at the right pressure for the vehicle to run correctly.

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Q: Your 1994 GMC pickup ran out of gas Now it acts like it is running out of gas all the time you replaced the filter cleaned and rebuilt the carburetor But still not any better?
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