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#1
07-19-2003, 12:02 PM
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Ecm-b 20 Amp Fuse
I HAVE A 1999 TAHOE 5.7 L 4WD THAT KEEPS BLOWING THE 20 AMP ECM-B FUSE WHICH APPEARS TO RUN THE FUEL PUMP RELAY AMONG OTHER THINGS. MAY RUN 5 MILES OR IT MAY GO 60 MILES BEFORE IT BLOWS, THEN YOU CAN REPLACE THE FUSE AND IT WILL START RIGHT UP. SHOWS NO CHECK ENGINE LIGHT AND SETS NO CODES... ANY IDEAS: THANKS JERRY
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#2
07-19-2003, 08:06 PM
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ECM fuse
Yeah i had the same problem. The problem was that the fuel filter had not been changed, and, was clogged, and was putting extra work on the fuel pump, which in turn blew my ecm fuse. to cure the problem i replaced the fuel pump, fuel filter, and ecm fuce, and this cured the problem.
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