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...

Jeffrey Turcotte

8991 Answers
Posted on Sep 21, 2010

SOURCE: keeps blowing ecm fuse need

engine control module. This is the computer that tells your plugs when to spark, and how much gas injectors should spray, etc.

Jeffrey Turcotte

8991 Answers
Posted on Jan 15, 2011

SOURCE: 1997 yukon keeps blowing ECM-1 fuse, 20 amp. Ran

Hi, here is what runs on the fuse: ECM, injectors, coil, MAP sensor, crank sensor, IAT sensor, EGR solenoid. Of these, only the EGR solenoid has a delayed operation. Recommend you disconnect the EGR solenoid to see if the fuse will hold up. The solenoid is next to the thermostat housing as shown below. If the fuse doesn't blow with the solenoid disconnected, replace the EGR solenoid. Please let me know if you have questions and thanks for using FixYa.

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