1990 Chevrolet Suburban • 200 miles

Truck was running just fine came home drove over curb on grass and at idle it just stopped like out of gas wouldnt start waited about 20min and started truck and started but ran for about10seconds then died. Checked wires at fuel pump a purple wire sender for gas gauge grey is feedbfor pump black ground but grey has no power pump pump no pump but when I use jumper wire pump runs pushes lot of gas tocarb but still dies but runs alittle longer, pulling my hair out need help?
August 2, 2013.

Check fuel pressure first then check oil pressure switch if no power to pump. Relay supplys on intimal start up only if engine doesn't run op switch won't send power

Aug 2, 2013.