8/15/02 Replaced relay. Truck starts like it used too! Thank god, and thanks for the help. Recently my K5 takes alot of cranking before it starts. It used to start fine but now it doesn't. I takes a bout 4-6 times of cranking before it starts. When It does start it runs perfectly. I replaced the fuel filter and temp sensor. Still does it. Wires on the starter are good too. I am thinking it is the fuel pump. Anyone have any input? Its a 1988 K5 350 TBI.