stock cam replacement now no start.

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silverquestions4.8l

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have a 2011 Silverado 4.8l vortec crew cab 1500 ls. I had the passenger side lifter go bad and pulled the engine apart and replaced the cam and lifters as the cam was damaged. Everything was kept stock. was sure to keep the timing how it came out the same as when it went it. Made sure I replaced all seals and torqued everything down to factory specs. after everything was torqued down and installed, i refilled the coolant and replaced the engine oil; with a new filter. After cranking the engine it started right up and sounded good. it had a minor tick but went away within seconds of running ( assume it was the lifters being primed). it ran for about 3 minutes and then slowly died. I tried to keep it alive by pressing the gas pedal. ever since then, it will crank over but not start. i have between 60-70 psi at the fuel rail. the injectors harness is working according to the noid light. I'm getting spark. the intake manifold absolute pressure is staying steady at 30.inhg engine rpm during cranking is about 150 rpm. my fuel air command ratio is around 0.0079
 
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silverquestions4.8l said:
have a 2011 Silverado 4.8l vortec crew cab 1500 ls. I had the passenger side lifter go bad and pulled the engine apart and replaced the cam and lifters as the cam was damaged. Everything was kept stock. was sure to keep the timing how it came out the same as when it went it. Made sure I replaced all seals and torqued everything down to factory specs. after everything was torqued down and installed, i refilled the coolant and replaced the engine oil; with a new filter. After cranking the engine it started right up and sounded good. it had a minor tick but went away within seconds of running ( assume it was the lifters being primed). it ran for about 3 minutes and then slowly died. I tried to keep it alive by pressing the gas pedal. ever since then, it will crank over but not start. i have between 60-70 psi at the fuel rail. the injectors harness is working according to the noid light. I'm getting spark. the intake manifold absolute pressure is staying steady at 30.inhg engine rpm during cranking is about 150 rpm. my fuel air command ratio is around 0.0079
Click to expand...
No check engine light?
Do you have an OBD2 scanner?
 
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