Question about 1991 Chevrolet S-10 Blazer
The power windows, door locks, and Heat/AC will not work. After replacing the fuse/breaker (30 amp) there was still no power. I used a circuit testor and there is no power coming from the fuse socket on either terminal. When I checked undeer the hood I could find no loose wire or connections.
Simply put, there is no power coming into the fuse box for the power accessories.
There are either one or two fusible links at the starter, and possibly one at the alternator. The fusible links will look like regular wire, but have a smaller gauge fuse wire inside the insulation. While looking at the starter, you will find the large battery cable connected to a 7/16" stud on the solenoid. You will also find two-three smaller wires connected to the same terminal. Check these by pulling on them (four to five lbs. of pull should be sufficient) if you feel any give, or if the insulation breaks and you don't see any wire, then you have found your problem. The fusible links will be easily identified by the texture of the insulation. The insulation generally feels much softer than the insulation on the other wires around them. Test the wire on the rear of the alternator the same way. If you only see one wire on the rear stud of the alternator, then it does not have a fusible link connected there, and they are all at the starter. Look for orange wires that change color after going through a black plastic connector about 3-5 inches from the terminal connection.
Posted on Nov 10, 2008
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Posted on Jan 02, 2017
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