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2003 GMC Sierra 2500HD - Page 5 Questions & Answers
Used transfer cases
Have you tried to add gear oil. Also if you ran it out or changed it did you add anti slip additive?
Power steering and brakes stopped working in my
You probably have hydroboost brakes and that system is powered by the power steering unit. If you have no steering and brakes, the first thing to check is the power steering pump. Check for low/no fluid. If the fluid is okay then the pump might not be pumping and you will need to replace it.
Radio problems
try speaker on other side as test part if still not working trace wire for breaks if ok rt channel in audio unit out and needs replaced.
Some of the radio speakers are not working
First of all check and make sure your fade or balance are not off in the radio settings. if not the problem check speaker connections. If they are door speakers sometimes when closing the doors works the connection loose if this is the problem put a drop of gorrila glue on the connection so it will not come loose. same with all connections where speakers are involved. You can also check the connections on the back of theradio itself.
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