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91 3/4 ton wont stay running

Discussion in 'Chevy Trucks' started by mercmn91, Dec 18, 2008.

  1. mercmn91

    mercmn91 Junior Member
    Messages: 11

    I also posted this in the res plow forum. I have a 91 chev 3/4 ton with 350. I only use this truck for plowing and work around the house. I used it in June to push a small amount of dirt with the plow. It ran fine then. I went to start it a few weeks ago and the battery was dead. I replaced the battery(wouldn't hold a charge) and went to start the truck. It ran for about 20 seconds and then died and would not start right away again. After letting it sit for a while I started it again and it did the same thing. The fuel pump is good and new fuel filter was installed. I have it in the shop now, but they said it is electrical and when hooked up, the scan can't read anything. Any ideas??? I don't want to have to put a ton of money into it but more snow is coming. please help.
  2. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

    Something to try check your fuel cap breather if you create a vacuum in the tank it could stall out the trk...
    Just a simple thought to try...