Help charging problem
#1
Help charging problem
I need help my 97 cummins 5 speed is not charging the batterys took alt had it tested and it is fine they said, it reads 10v or less on batts when running the gen light is on what can i do to fix problem i checked all battery connections and they are good ,any help would be a big help to me thanks
#4
Registered User
Have your batteries load tested too. You can do a couple of voltage tests. With engine off, test the battery voltage. Then on large terminal on back of alternator, test for voltage. You should read the same battery voltage. If you read battery voltage then then alternator feed cable to battery is good. If you do not read battery voltage, there is a break in the system somewhere. Check the fuse.
Now start engine and check for voltage on large terminal on back of alternator. It should read 13-15volts. If you are getting that reading the alternator is charging. If you do not get that reading, the alternator is not charging in the vehicle.
Now start engine and check for voltage on large terminal on back of alternator. It should read 13-15volts. If you are getting that reading the alternator is charging. If you do not get that reading, the alternator is not charging in the vehicle.
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