Question about 2002 Chevrolet Silverado 2500HD
Has new alternator, serpentine belt, idler pulley, battery cables have been cleaned. Started truck, disconnected batteries and truck continued running. The tension arm is bouncing a little and the idle of the motor reflects the bounce.
This could be from current sensing from the voltage regulator. Get another meter and hook it up and see if it bounces. If it does, there is nothing to worry about. If it does not, the dash gage panel needs to be reworked.
Posted on Dec 01, 2014
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Posted on Jan 02, 2017
Here are instructions and routings for belts hope this helps.
Posted on Dec 15, 2008
Have the codes read to see if they are related. Make sure the belt is the correct length. Inspect the pulleys and bearings for failure, also you can look at the entire system an see if there is an alignment issue.
Posted on May 31, 2009
I would look for a short in the output wiring at the alternator. My nephew had an intermittent charging problem and I took the car to an autoparts store and had them check the alternator output. Most parts stores will do the check for free. Anyway, while it was hooked up and the output was being checked, I fiddled with some of the wires at the alternator to see if it had any effect. It did. I noticed that as I moved the wires around, the output changed. I was able to isolate the problem to a wire that ran inside the plug. I resoldered the wire and that fixed the problem. I'm not saying that your problem is the same, but I would definitely look at a wiring short somewhere. I sympathize, since there is nothing more aggravating than finding the source of some electrical issues. Anyway, I hope this helped and that you find a resolution to your problem. Best wishes.
Posted on Aug 28, 2009
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