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Thread: Fuel issue

  1. #1

    Fuel issue

    My 72 buick 350 w/qjet wont start without pouring gas directly into the carb. Today it ran for about a half hour before shutting down and refusing to do anything but turn over. My buddy says its the fuel pump. Any opinions

  2. #2
    Join Date
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    There are several things to look for. First, disconnect the fuel line from the tank to the pump to check for line or tank blockage. It's not unusual for the tank on an old car to be so full of crud that it will block the line to the pump. If fuel flows easily out you're probably OK there, but later it wouldn't hurt to drop the tank and clean it out anyway. If nothing flows from the tank, blow air back through the line to see if that will clear the line. If it does, drop the tank and clean it. I you have good flow from the tank, reconnect the line, disconnect the line from the pump at the carb and hit the starter. Fuel should flow easily from that line. If it does, your carb is at fault. If it doesn't, there's a problem with the pump. Also, if there is an in-line filter, it could also be blocked internally and will need to be checked using the above methods. Good luck and let us know what happens.

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