97 Grand Am charging problem - Chevelle Tech
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post #1 of 3 (permalink) Old May 10th, 05, 4:48 PM Thread Starter
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97 Grand Am charging problem

Here's my story. My son's 97 Grand Am needed to intake manifold gaskets replaced(3.1). Had the work done by my mechanics. Would go by periodically and check on how things were going. On one occassion I noticed the altenator laying to the side with wires still attached. On another occassion the mechanic was charging the battery. He said it was run down when he flushed the system. I don't think he had the altenator attached at the time he ran it. Anyway once a week for the past 4 weeks the car is dead(won't start). I replaced the altenator 2 weeks ago, Mac charging tester showed 12.5 to 13 with the needle ocsillating. Put new altenator on checked charge and it charged 14.5 steady. Ok thought problem was fixed. Last week it died again. Took it back to the mechanic and tested it 12.5 oscillating needle. He touched a couple of wires shot up to 14.5. Found the battery terminal wire was lose got hot and "didn't look right" so we replaced it and tightened it back down. Today my son calls and says the "battery" light came on. I'm suspecting the battery was run down when the flushed it without the altenator on it(my speculation) and now won't hold a charge. Does this sound plausible? The battery is dated 11-04. We purchased the car in 1-05 and had no problems with it electrically prior to this. We checked for a battery draw and the test light was barely on and the mechanic said that was probably due to the radio memory. Ideas or suggestions needed. I'm not upset with my mechanics as they have always treated me great and I realize things happen I just want to fix this thing and be done with it. TIA Pete

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1970 Chevelle 350cu w/ th350, 750 edel carb, perform intake and lopey cam of unknown specs which produces low vacuum 7-9", otherwise stock motor.
67 std Camaro conv, 1978 Corvette, 03 Silverado, 13 Sonata Hybrid

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post #2 of 3 (permalink) Old May 10th, 05, 5:32 PM
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Re: 97 Grand Am charging problem

Possible that the old alternator damaged the battery. Also possible that the battery was drained down a few more times without you knowing about it and won't come up again. The battery can be tested a little better at places like AutoZone. Or just toss another battery in there. Keep an eye on it...or stick a cheap volt gage under the dash. Sorry, had an extra Autometer but someone nabbed it.

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post #3 of 3 (permalink) Old May 10th, 05, 10:36 PM Thread Starter
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Pete
 
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Re: 97 Grand Am charging problem

Thanks John. I think I'll get a battery tomorrow and see how that goes. Pete

Member# 1097
1970 Chevelle 350cu w/ th350, 750 edel carb, perform intake and lopey cam of unknown specs which produces low vacuum 7-9", otherwise stock motor.
67 std Camaro conv, 1978 Corvette, 03 Silverado, 13 Sonata Hybrid

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