83 chevy 6.2 Dies after 3 minutes
Hello DB community. I have a very frustrating problem. My 83 6.2 diesel starts and then dies after 3 minutes of running. I checked the small filter in the valley after it dies and it's completely empty. I verified that my lift pump is working and I changed all hoses going to the tank because I thought it might be sucking air or something. Restarted truck after I filled the fuel filters and I got the same result. Any help would be much appreciated. Thanks
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Have you looked at the sending unit and the inside of the fuel tank it's 31 years old it is possible it may have a rust hole in the pick up tube.
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Do you think I can verify the hole in the pick up tube by filling the tank to the top and seeing if it stays on?
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Sounds like air getting in. Could you try running a hose from a can of fuel to the lift pump to rule out the tank sending unit? Best I can think of at the moment, good luck!
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I tried running an electric fuel pump with an external fuel source and I get the same results.
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Might be a restriction in the fuel return?
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Do you know how I can check for a restriction in the fuel return?
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Take the cap off the fuel tank and blow low pressure air back into the tank dfrom the IP end of the return line.
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