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1998 silverado 4.3 cranks but wint start weird fuel pressure

1K views 3 replies 3 participants last post by  burned 
#1 ·
I have a 1998 4.3 vortec throttle body and my truck keeps cranking over but wont start i changed the crank position sensor because it was reading that code awhile back but it didnt fix my problem so i got a fuel pressure guage and when id turn the key to the ignition and start cranking,but it stayed at about 5psi until i stopped turning the key and it jumped to 60 and started decreasing so i changed the fuel pump and fuel filter anyone know what could be wrong with it?
 
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