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Old 11-23-2020, 08:47 PM   #1
legacygt777
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2011 11 WRX LTD

Default Blinking security light and car won't start

Wondering if you guys can help.

I have a 11' limited wrx. I had the air bag recall fix done a few weeks ago.

My car doesn't start unless I do a jump (cables). The security light was blinking and now it doesn't and the car is dead. I had the battery checked at autozone and the battery is at 85% and said is good.

My battery connectors look corroded and was wondering if that might be the connection problem.

Any thoughts?

Thanks.
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Old 11-23-2020, 09:12 PM   #2
Vancouver98STi
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Quote:
Originally Posted by legacygt777 View Post

My battery connectors look corroded and was wondering if that might be the connection problem.
Often, battery cables corrode internally and cause starting issues. If you can see the corrosion, then the cables are no doubt a source of your problem. Try at least cleaning the terminals and battery posts to find out if that helps.
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Old 11-23-2020, 09:26 PM   #3
legacygt777
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Originally Posted by Vancouver98STi View Post
Often, battery cables corrode internally and cause starting issues. If you can see the corrosion, then the cables are no doubt a source of your problem. Try at least cleaning the terminals and battery posts to find out if that helps.
Thank you!
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Old 11-29-2020, 09:02 PM   #4
AliBenn
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If you dont want to clean terminals by taking off and using wire brush
Pour Coke/Pepsi on the terminals
Works every time
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Old 11-29-2020, 11:22 PM   #5
Vancouver98STi
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Originally Posted by AliBenn View Post

Pour Coke/Pepsi on the terminals
Works every time
Imagine what that crap does to people's teeth, etc!
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Old 12-04-2020, 02:08 PM   #6
SnoBrrru
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Originally Posted by Vancouver98STi View Post
Imagine what that crap does to people's teeth, etc!
Saw that mythbusters episode where they used Coke to clean an engine bay. Worked pretty well...

The scary one was the penny myth - they left it in Coke for a couple days and that thing looked shiny as the day it left the mint.
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Old 12-04-2020, 05:42 PM   #7
DrD
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Quote:
Originally Posted by legacygt777 View Post
My battery connectors look corroded and was wondering if that might be the connection problem
As already pointed out, that is probably it. You might consider getting the felt washers to go under the terminals, and then coat the connection with something (they sell spray on stuff - you'll find it where the felt washers are at the auto parts shop) or if you don't have that, silicone dielectric grease works just fine for that, too.
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Old 12-04-2020, 05:54 PM   #8
Big-E
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You can purchase a small tube of dielectric grease to coat the terminals, posts, and the felt-washers.

If you are at the point where you need a new battery, consider an AGM battery.
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Old 12-12-2020, 06:11 PM   #9
legacygt777
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Quote:
Originally Posted by AliBenn View Post
If you dont want to clean terminals by taking off and using wire brush
Pour Coke/Pepsi on the terminals
Works every time
Thanks.


The battery terminals were corroded and I had them replaced. Thanks.
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Old 12-23-2020, 07:11 PM   #10
FKemp
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Quote:
Originally Posted by SnoBrrru View Post
Saw that mythbusters episode where they used Coke to clean an engine bay. Worked pretty well...

The scary one was the penny myth - they left it in Coke for a couple days and that thing looked shiny as the day it left the mint.
Human stomach contains some much more potent acids in it, Coke does nothing in that regard, however the amount of sugar it contains is very unhealthy. I've actually written a pretty good thesis on the human stomach for prothesiswriter.com, the student who ordered it was satisfied.

Quote:
Originally Posted by legacygt777 View Post
Thanks.


The battery terminals were corroded and I had them replaced. Thanks.

You should still replace cables just to be safe, there's a good chance they may be corroded as well.

Last edited by FKemp; 01-02-2021 at 09:11 PM.
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