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2001 Chevy 1500 stalling out on startup

Discussion in 'Chevy Trucks' started by Sharpcut 1, Nov 9, 2013.

  1. Sharpcut 1

    Sharpcut 1 Senior Member
    Messages: 386

    My dad has a 2wD 2001 Chevy 1500 that has started stalling on start-up. Once it is running it runs fine. Does not do it all the time, could be warm or cold, just does it randomly. You may have to start 3 or 4 times till it stays running. It has the 4.8 engine, 140,000 miles, replaced fuel pump at 100,000. Friend has a scanner, plugged it in for me. No codes came up, no SES light on dash. Any ideas?? Truck runs down the road fine otherwise.
  2. sameoldthang

    sameoldthang Member
    Messages: 34


    you can start by cleaning the throttle body but in the end you might need intake manifold gaskets
  3. jb1390

    jb1390 Senior Member
    Messages: 710

    Any difference if you give it some throttle while you try to start it?
  4. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,980

    scanner or code reader?...if scanner hook back up and check fuel pressure....might be bad regulator for pump
  5. sameoldthang

    sameoldthang Member
    Messages: 34

    sharpcut, a way to verify for free is get the truck warm, and spray brake clean along the intake runners. If the gaskets are leaking , you will have a spike in rpm . Now, obviously don't empty a whole can of cleaner in the intake runner .