I have a 1990 Suburban that has random 10 amp ECM fuse failure. This has happened 4 or 5 times over the last few months. This shuts down the engine. It still cranks but will not start until the 10 amp fuse is replaced. It has always happened when moving and all but once when I have hit a noticeable bump. I am concerned that this may be the beginning of an ECM module failure ? Engine runs great and there are no codes. A head scratcher for sure. I would like to figure this out before it leaves me stranded. Any ideas ? Thanks in advance for you replies.