You have a short to ground somewhere in the fuse circuit. check for pinched or exposed wires. anything aftermarket installed? screws go through wires?
SOURCE: ECM BATT fuse keeps blowing
That fuse provides power for the fuel pump. Either your fuel pump is blowing the fuse or there is a shorted wire.
SOURCE: the ECM fuse keeps blowing out
check the wiring to fuel tank something shorting. replace wires to fuel tank.
SOURCE: truck wont start keeps blowing the ecm batt fuse
You have a short (bear wire) somewhere. Trace the wire and find it.
Have a great evening
SOURCE: ecm fuse keeps blowing
just fixed this problem, change your fuel pump module, fuel sending unit shorts out on fuel level swing arm blue wire... unfortinately you must replace it as unit because of the design, fuel pump and tank guage fuel level sending unit are a one peice item, fuel tank has to come out to change unit, about a $ 700.00 repair too... fuel pump module runs about 350 to 700 $ depending on aftermarket or factory, try to find one with a lifetime warranty even if it is $ 50.00 more worth it..labor is about $ 250 to $ 400 depending on shop labor rate... definate problem though I ahve no doubt, common problem on GM... please rate my help, thanks...
SOURCE: blown ecm fuse
unhook the ecm and check if the fuse does not blow,you will know if it is the ecm,Hope this helps
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