"but if I put the pedal to the floor it immediately blows that fuse"
Do you mean the accelerator pedal? I assume you mean with the engine running, that causes the fuse to blow. What about pushing that pedal to the floor with the engine off and the ignition switch on? In other words, is it an issue of the throttle linkage rubbing on something or is it related to when the engine rocks during hard acceleration?
The first place I would look is the two smaller nuts on the back of the alternator. One of those is fed right from the automatic shutdown, (ASD) relay. The next thing to look for is if a wiring harness fell down onto hot exhaust parts on the back of the engine, and melted, then shorted to ground.
Monday, July 10th, 2017 AT 9:53 PM