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About Robdgx35

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  • Location
    Livingston, Tx
  • Drives
    1989 GMC Sierra
  1. I have a 1989 GMC Sierra 5.7 l 350 V8. I put a new fuel pump in, fuel filter, did a throttle body repair kit, new regulator, new fuel injectors, new fuel injector wiring pigtails, new map sensor, distributor cap and rotor, and spark plugs, new spark plug wires, new PCV valve, I also checked the fuel pressure it was at 11 PSI I believe it is supposed to be between 9 and 13. I banged on catalytic converter to get the dirt out if any. I change a few other parts out as well. It runs really well at times and at times it will not start or rough idle or as soon as I try to get going it stops. I have
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