Question about 2003 Chevrolet Tahoe
The stock radio sound and volume isnt working right
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Posted on Jan 02, 2017
I'm not familiar with your specific GM model, but I would go over the fuse blocks & fuses. Connectors get corroded or glazed easily when sitting, depending on your area air quality. If the car was sitting in the yard on the ground this is very probable with the likely humidity and fluctuating temp conditions. I've ressurrected dozens of vehicles from the 'yard' and 90% of the time they have a fuse or ground related problem that is cured by the following 2 steps. Until you do the following, don't waste your time and aggravation trying to troubleshoot further.
1. Since you've changed the battery I assume you have cleaned the posts and you've checked the cable connections for corrosion and tightness at the solenoid posts also. If not then you should do that next. After that look for and tighten all the grounds you can find, like one for the engine to fire wall, engine to batt, etc, just look for them then clean & tighten the bolts & connectors
2. Go over the fuseblock as outlined here:
Remove, test(with an ohmeter), clean (with pink pearl eraser) the fuse wafer tips, and replace them one at a time.
Do the Same for your blinker/hazard relays and other special devices. Then do this with any malfunctioning individual lamps or bulbs in a circuit.
Hopefully this will fix your flaky electrical problems that are common after a vehicle sits for a long time. You may also have a fuse test good for continuity but still not working- so just swap with a new fuse of the same rating to test- never replace with a higher rated fuse.
Good luck and let us know how it went.
If this fixes ya please give a rating.
Posted on Jun 02, 2009
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