2002 WRX Power Loss While Braking
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This is a discussion on 2002 WRX Power Loss While Braking within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I was braking into a turn not going particularly fast and suddenly the headlights dimmed, the dash lights dimmed, and ...

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    2002 WRX Power Loss While Braking

    I was braking into a turn not going particularly fast and suddenly the headlights dimmed, the dash lights dimmed, and the power steering went out. I was approaching a stop sign and when I reached it I turned the car off and back on, no issues getting home (was 2 minutes from home). The car has 52k miles on it and just purchased it on the 23rd. I am assuming this indicates either a battery issue or alternator issue, and I am planning to get it checked out asap but would appreciate any suggestions or just being equipped with some good info before I talk to a mechanic. Would it be best to take it to a battery place or a service shop? Thanks

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    Moderator Donkey's Avatar
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    How much gas did you have in the car? You can easily test the alt with a $10 volt meter. The battery would need a load test that most Advanced/Autozones will do for free.
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    What mods, if any, does the car have? Light weight flywheels often cause stalling. Could be an alternator/battery/belt issue.. free test at an auto part store will let you know how the charging system is working.

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    Almost a full tank of gas

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    The car is fully stock thankfully
    Quote Originally Posted by MainFrame View Post
    What mods, if any, does the car have? Light weight flywheels often cause stalling. Could be an alternator/battery/belt issue.. free test at an auto part store will let you know how the charging system is working.

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    Pro Manscaper Mikie13's Avatar
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    Damn only 52k miles on a Bugeye????
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    Quote Originally Posted by Mikie13 View Post
    Damn only 52k miles on a Bugeye????
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    haha, yeah one owner no accidents too ... However, it is a 4eat :S
    Quote Originally Posted by McBill View Post
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    Alternator and battery checked out fine, and the belts were good according to NTB.

    Quote Originally Posted by MainFrame View Post
    What mods, if any, does the car have? Light weight flywheels often cause stalling. Could be an alternator/battery/belt issue.. free test at an auto part store will let you know how the charging system is working.

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    I think I would feel better about this if there was something wrong with the battery... only has happened once so far

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    Hmm... I suppose I would clean the MAF, clean the throttle body, inspect wiring (with close attention to gunked up looking grounds), check for any intake/vacuum leaks, and hope it doesn't happen again? It would be nice to see a screen shot of learning view, or a data log for that matter to see if anything screwy is going on.

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    Thank you, that is some advice I can work with.
    Quote Originally Posted by MainFrame View Post
    Hmm... I suppose I would clean the MAF, clean the throttle body, inspect wiring (with close attention to gunked up looking grounds), check for any intake/vacuum leaks, and hope it doesn't happen again? It would be nice to see a screen shot of learning view, or a data log for that matter to see if anything screwy is going on.

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    Also make sure all your grounds and power connections are solid. Being that the alt and battery were checked, connections on them should now be tightened, but it's quite possible that braking or turning could cause a connection to jar just a bit loose causing a "brown out" like what you experienced.
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