Did i fry my starter??? - Chevy Impala SS Forum
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post #1 of 14 (permalink) Old 09-02-2019, 10:40 PM Thread Starter
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Did i fry my starter???

So I needed to give me '91 LO5 9C1 a boost with a power pack.......and the engine barely turned over.......I had to hold the key in the crank position awhile for the engine to turn over....weird since the battery, an 800 AMP one, which is barely 2 months old,

While cranking it holding the key, it started to smell like some electrical components were heating up

The car finally started...


While driving, looks like the battery or alternator was struggling, the lights in the dash board were flickering, and getting stringer every time I accelerated.

Less than a mile later, the car died, and would not start or crank.

I removed the battery, charged it at slow rate at home.......put the battery back in, and while the dash comes on, the engine wont turn over or crank at all when I put the key in start/crank mode.



Did I fry the starter??? Or maybe killed the battery?

The power pack died too.

On another note, while going through the fuses, found the 25 AMP fuse (slot 15) melted. Apparently, this is the fuse for the rear defogger.
Coincidence? or related?
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post #2 of 14 (permalink) Old 09-03-2019, 10:36 AM
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[quote] "So I needed to give me '91 LO5 9C1 a boost with a power pack......."Why? Considering the battery just 2 months old, need to know what else happened before that to get a dead batt. Left lights on overnight?

[quote] "While driving, looks like the battery or alternator was struggling, the lights in the dash board were flickering,...."

Sounds like battery dead, the car barely got running with just that powerpack, and then expired finally running out of just battery juice. That new battery could have shot craps, but if you manage to get the car started it should run fine despite that. I'ma go with bad or incorrectly wired alt until hearing alot more.



Curious, - did the charger show the battery took a good charge? If so, you may in fact have a broke starter or something binding it up (cracked flexplate, loose bolt(s)).

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post #3 of 14 (permalink) Old 09-03-2019, 10:59 AM
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Quote:
Originally Posted by coppcarz View Post
On another note, while going through the fuses, found the 25 AMP fuse (slot 15) melted. Apparently, this is the fuse for the rear defogger.
Coincidence? or related?
Sounds to me like you have a direct short in the rear defroster that is draining the battery and melting the fuse. I would spend more time looking into that issue.


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post #4 of 14 (permalink) Old 09-03-2019, 03:10 PM Thread Starter
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Well everything was fine with this car , never had any issues, it just sat a for a few weeks since it got the battery in early June, I did find it odd that a battery would go low sitting for a few weeks in the middle of summer,,,,,,,

I did remove the fuse for the defogger, but I need to get the car started, I pretty much abandoned it where it stopped, luckily there was a parking spot close by, but I need to move it soon, would rather start it , than tow it.

So going to try to swap the battery, in case the battery itself was the problem.

On slow trickle, the battery took almost a day to re charge, yet when I hooked up the battery to the charge, the needle indicated that the battery was almost %100 charged,
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post #5 of 14 (permalink) Old 09-03-2019, 03:24 PM Thread Starter
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I checked the fuse box, except for the defogger fuse, every other fuse is OK. Are there other fusible links to the starter?
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post #6 of 14 (permalink) Old 09-05-2019, 11:49 PM Thread Starter
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Problem solved

Well, I changed out the battery and installed an old battery, a 700 CCA INTERSTATE to replace the 2 month old over 800 CCA WALMART battery.....

SO with the older INTERSTATE battery, the car started up right away.........

SO either the car had a very bad battery, or the boost fried the battery......
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post #7 of 14 (permalink) Old 09-06-2019, 08:46 AM
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Quote:
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Well, I changed out the battery and installed an old battery, a 700 CCA INTERSTATE to replace the 2 month old over 800 CCA WALMART battery.....

SO with the older INTERSTATE battery, the car started up right away.........

SO either the car had a very bad battery, or the boost fried the battery......

OR the direct short in the rear defroster drained the battery to the point of damaging it before the fuse melted?????
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post #8 of 14 (permalink) Old 09-06-2019, 12:46 PM
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as noted the defogger short likely drained the 2 month old Walmart battery to death before melting the fuse. You need to resolve the defogger issue, or just leave the fuse out and go without a RW defogger.

Walmart battery's are made by Johnson Controls which makes most of the battery's branded under various chain auto part stores. I have a Walmart 78 in my 67 Camaro (swapped to side post battery) and a AZ one in the SS...both are Johnson Control battery's but Walmart is 1/2 the $ for the same battery

If you probe the defogger fuse terminals (without fuse) for +12vdc without the defogger being turned on and you get +12vdc....you have a dead short from the defogger. Maybe somewhere in the wires to the fuse block or defogger/window area/connection itself

BTW if the battery was a AGM type that fully drained....those kind of batteries do not come back very well on a charge

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post #9 of 14 (permalink) Old 09-08-2019, 03:19 AM Thread Starter
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Yepp,

I have not dismissed the defogger yet. Just have not had time to race that issue. Unless boosting it somehow caused that short...

For now, I have the fuse out of the defogger slot.

Thanks
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post #10 of 14 (permalink) Old 09-10-2019, 10:16 AM
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Quote:
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Yepp,

I have not dismissed the defogger yet. Just have not had time to race that issue. Unless boosting it somehow caused that short...

For now, I have the fuse out of the defogger slot.

Thanks

I honestly believe that you are going to find that the defroster issue is the reason the battery went dead in the first place and it was a direct short that drained the battery to the point of doing permanet damage to the battery. The fact that the jump pack had issues tells me that your battery was damaged and the jump pack could not overcome this issue. Find that short and I fully expect your battery issues will resolve themselves. PLEASE keep us informed on what you find. Thank You.


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