alternator is not charging battery. i had it tested and it tests good.
Asked by Shivy Jul 28, 2014 at 04:52 PM about the 2003 Chevrolet S-10
Question type: Maintenance & Repair
I have a 2003 S10 with a Vortec V6. I was driving on the hiway when the battery light
came on and the truck quit. I put a new battery in and noticed that the volt meter was
showing that the battery was not charging. I removed the alternator and took it to be
tested. It tested good. I put it back in the truck and it started to charge again. After driving
for a few days I noticed that it had stopped charging again. The cables seem to be in good
condition. Any ideas?
12 Answers
Can I check this on my own or does it take a professionals diagnostic system?
Great advice "tennisshoes". Also have the battery tested. I don't know how old your battery is, but if it is original in a 03 vehicle, it may be bad. One cell will not allow it to hold a charge or even charge. You also may have a diode going out. Electrical that gives problems intermittently is a B to locate and fix unless it is tested by good diagnostic equipment not normally found in a home garage.
my s 10 is charging went it start but as i am driving it it stop charging as i step on the gas i let go of gas and it start to charge and it dose it all the time now
I took it to a Chevy dealer and had it diagnosed. The alternator was bad.
Mine is doing the same thing. almost 100 percent sure it's an alternator. Pain to remove it from the side of a wheel well
Ugh big time charging problems with 2001 Chevy S10 2.2 liter. Alternator tested bad. Installed a new alternator worked for 2 days quit charging. Checked all cables and connections. New alternator was bench tested and was good Reinstalled and same problem not charging .Checked fuses and can not find anything. Any suggestions? .
Not sure I had 5 volts on the small red wire. I gave up and took it to a shop to trouble shoot. I let you know what they find out.
did u ever figure it out im havin same problem my battery is good and alt is good checked fuses they good
Start the engine and disconnect the positive battery lead. If the engine quits, that means the alternator is not generating enough power to run the engine either because the alternator is bad or the ecu is not telling the alternator to put out enough. To check the latter have a full field test done on the alternator at your service centre.
Juan&adriana answered 4 years ago
I have a 2001 chevy s10 it starts but after a couple of minutes that its on it turns off. I try to jump start it and sometimes it wont even crank. It has a new battery. But its drainning the battery
Guru9ZDF7Q answered 3 years ago
What did you find on your s10 not charging. Mine charge some time, have change battery and alternator. Still the same problem. Help
