5.7 vortec

May 24, 2007
937
0
Hey everyone. Been gone for a while but need help. I'm at work and working on a 2002 GMC W4500. the issue is it doesn't want to start on it's own. If started with starting fluid it runs great. So far the other mechanic and I have changed:
Fuel pump
Fuel filter
Fuel pressure regulator
Plugs
Wires
Dizzy cap and rotor
MAP sensor
TPS
IAC valve

Losing patience and time as I need this truck 100% for a job at O'hare. Any advice would be appreciated.
 
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