Where is fuel filter located?Can fuel pump be defective if it still turn on

YES and the filter is inside the frame under drivers seat, 16mm and 19mm wrenches needed. The pump is in the fuel tank, the hardest part is getting access to the top of the tank.

Pump may have low pressure/volumn.... can be tested before all that wotk.... need at least 13 psi for tbi injection! If pump needs to be replaced.... strongly suggest truck bed removal to gain access, if std bed that is!.... It's a LOT eaiser that way!!!! Check out youtube .., you'll see!!!