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Re: 1990 oldsmobile silhouette
When the shop checked the alternator did they test the battery? your battery could have a bad cell in it, or even a low cell. another thing is, which method did they test the altenator as it could have a week or faulty diode or rectifier.
also check out your starter to see if it has a faulty solenoid.
hope that this helps and good luck.
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Glove box lamp, boot lamp, faulty alternator diode, faulty car alarm system if not the manufacturers. but to name a few. You can elminate the alternator by carefully disconnecting man power wire but do not let it touch anything metallic or it will dead short the battery.
start the vehicle pull the cables from the battery if the car stays on ur good if it dies ur not holding charge u only need a battery to start the car u can take the battery completly out after and go grocery shopping but good luck starting it on ur way back(:
andersonltam: OOPS! Don'tfeel bad it's a common problem. First we have to get you oriented in front of the vehicle and give you some reference points so that we are talking apples and apples OK?
Standing directly in front of you vehicle, hood up and looking at the motor, the engine sits "Transversely" (SIDE WAYS") HMM they keep doing that!
Starting with the cylinders on the front side of the motor closest to the radiator, they are
numbered as followed. To your left is #2 cylinder, the center is # 4 and the right is # 6
So the layout is even on one side and odd on the other.
On the back side you have the same configuration: # 1 cylinder is to your left, # 3 is in the center and # 5 is on the right.
back of car
(1) (3) (5)
to #1 cyl > 1 3 <(Dist cap)
( 2) (4) (6)
Front of Car
This illustration was a close as I could get using what I had, but I think you have a 99.9%
chance of figuring it out...... If you don't I'll be watching... Let me know how I did......
You better have the alterntor checked, you said the battery was putting out 12v. was that with the car running or off? If it was running, it should have pushing between 14 and 15 volts, if it wasn't with it running, replace alternator.
we had the same problem the mechanic that tested the alternator forgot to plug it back in after he checked it cost us a new battery and towing before it was discovered what he had done. maybe you have a loose connection somewhere