Question about 1991 Chevrolet Suburban

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Ecmb 1 the ecmb 1 fuse keeps on popping. help please.

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  • Anonymous May 22, 2009

    I have the same problem. I rewired from outside the fuse box to the fuel pump and unplugged the fuel pump, but fuse blows immediately when I switch on the key.

  • victorcoy May 22, 2009

    I have a 1991 chevrolet Suburban that keeps blowing the ECMB fuse.  I rewired from outside the fuse box to the fuel pump and unplugged the fuel pump, but fuse blows immediately when I switch on the key.  Any ideas?

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I had the same problem on my other 'burb ('90 2wd with same engine).
after dropping the tank ( about 5 miles after i filled it up!) because i thought the pump had cooked, i figured out the fuse had popped, and kept popping occasionally after that. i re-ran the wiring to the fuel pump, and this fixed the problem.
i checked the old wiring for any short/break in the wire, as there was not any visiable signs of a short, but still couldn't find anything concrete to say "this is where the short was!". but, it didn't matter, since the replaced wiring never gave me an issue and i didn't have to replace another fuse again! good luck brother.

Posted on Feb 26, 2009

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