Alternator/battery problem
- Thread starter cali_92
- Start date
JPNinPA
Well-known member
Your flip flopping here. Is the 11 amps or volts?? You mention about 12A and now refer to this number as volts. Big difference in what we're discussing. Not trying to come down on you, but these details make troubleshooting much easier.
I want to help.
What exactly was checked? How? And what were the findings.
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Utah_jeepster
Super Moderator
First off never pull a lead off the battery while the vehicle is running, on OBD 1 and OBD II type of vehicles, that old trick worked well with non-computerized vehicles. With OBD controled vehicles loss of power to the ECM can cause fatal errors in the ECM while power flows in some circuits and none to the main power feed. I have had to tell many of people that there ECM was fried because they have done this little trick, and still it wasnt the main problem that led them to try that old trick.
P.S. Your OBD 1 starts at 177$ without the core charge.
Now first off you need to take your ride down to a local AutoZone, Pep-Boys, or Napa. They have a free service that tests the Battery, Starter, and the Alternator in the parking lot, still inside your ride.
Even a new Alternator, battery and or starter can be bad, trust nothing here.
If the Alternator isn't putting out 13.9 amps min, you will never properly "re-charge" your battery. If the field tester says your alt isn't putting out enough , strip it off the vehicle and take it in to be bench tested. Another free service...
Now if the bench test shows bad, replace it....if it is good then you have a short somewhere.
Most places like Big O , Goodyear, and Firestone will have a competent mechanic on duty that can trace down this problem for 25$-35$.
P.S. Your OBD 1 starts at 177$ without the core charge.
Now first off you need to take your ride down to a local AutoZone, Pep-Boys, or Napa. They have a free service that tests the Battery, Starter, and the Alternator in the parking lot, still inside your ride.
Even a new Alternator, battery and or starter can be bad, trust nothing here.
If the Alternator isn't putting out 13.9 amps min, you will never properly "re-charge" your battery. If the field tester says your alt isn't putting out enough , strip it off the vehicle and take it in to be bench tested. Another free service...
Now if the bench test shows bad, replace it....if it is good then you have a short somewhere.
Most places like Big O , Goodyear, and Firestone will have a competent mechanic on duty that can trace down this problem for 25$-35$.
JPNinPA
Well-known member
Glad to hear you got this fixed.
On another note I don't know why your post here wasn't viewable when I sent the above post with diagram. Well anyway.... Talk to you next year.
spymonkey360
New member
I have a 94 wrangler with a 4.0 having the same issue after swaping engines ....good altinator and battery and no radio can't figure it out it ran good for the first four days.
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