Question about 1990 Chevrolet K1500

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Carborator and vacum hose confustion

I recently put in a rebuilt engine into my 1990 chevy truck. I have changed the fule filter and am still not getting gas to the carbarator. A lot of the vacum lines broke off durring the removal and with the weekend warrior mode this job is being completed has made it difficult to remember what goes where. I have a manual that is zero help. Is there any diagrams with picture that outline where all these lines go. Do you have any suggestions?

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  • John Tunney
    John Tunney Mar 11, 2013

    also check the fuel pump relay



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1990 i believe had throttle body fuel injection NOT a carb. I can send you information but check the fuses and make sure they are all good I believe the fuel pump fuse is 20amp (yellow fuse) located under the plastic cover on the passenger side of the firewall be careful there are many electric connections there the fuel pump fuse is in a small inline holder
if you find this information helpful please rate me accordingly and let me know if you would like a diaggram of the electric schematic for the fuel pump on the truck and vacuum diagram.

Posted on Aug 10, 2008


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