Blown Fuse Check 2003 GMC Sierra 1500 WT 4.8L V8
GMC Sierra 1500 Model Years - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Locate the engine fuse box and remove the cover
Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.
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The video above shows how to check for blown fuses in the engine bay of your 2003 GMC Sierra 1500 and where the fuse box diagram is located. If your map light, stereo, turn signals, heated seats, headlights or other electronic components suddenly stop working, chances are you have a fuse that has blown out. Fuses should always be the first thing you check if your Sierra 1500 is experiencing electrical difficulties because they are relatively easy to check and inexpensive to change. The more electronics your Sierra 1500 has, the more fuses it has. Some GMCs have multiple fuse boxes in the engine bay, so be sure to find the fuse(s) in question. Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component in question.
If you need to replace a blown fuse in your Sierra 1500, make sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your Sierra 1500.
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