smarter than you
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I bought the truck with a blown motor and swapped in a used 5.3l from a local salvage yard. I have all the sensors and grounds hooked up and have good fuel pressure but when i go to crank it it will start and then die about 2 secs later. I dont know what it is but i have seen that it may be something to do with the psslock system? The security lights isnt on but idk what else it could be? Any GM techs out there that could help me? Im about to give in and take it to the dealer which is something i NEVER do lol.