What would cause my break and battery light to come on?

Tiny
NIKIR
  • MEMBER
  • 1993 SUBARU IMPREZA
  • 144,000 MILES
Last night when driving home I noticed that when I stepped on the break my battery and break light would come on (car didnt stall or seem like it was going to) but as soon as a put my foot on the gas it would go away only to come back the next time I breaked why would this happen?
Thursday, November 10th, 2011 AT 3:52 PM

5 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It could be due to a failing alternator, bad ground circuir connections and other electrical faults.

I would start by getting the alternator tested.
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Thursday, November 10th, 2011 AT 4:32 PM
Tiny
BILLYBOB
  • MECHANIC
  • 27 POSTS
Alternater is probably went bad? You can check this d.I.Y. By having the vehicle running then disconnect the battery if it quits you know 4sure that the alternater is bad simple check! Any? Contact me at billyquarter@frontier. Com
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Thursday, November 10th, 2011 AT 5:10 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Never do that. Disconnecting the battery terminals are for vehicles of yesteryears. If the alternator is bad, disconnecting the terminals can results in voltage surges which can fry the engine computer.
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Thursday, November 10th, 2011 AT 5:36 PM
Tiny
NIKIR
  • MEMBER
  • 2 POSTS
Alright so I took the car up to pep boys they told me it was just the alternator belt so I replace that but last night my car died. We tried to jump it but even with the cables connected the break and battery lights were coming on, the timing belt stopped spinning, and my car stalled out. Any new ideas?
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Monday, November 14th, 2011 AT 3:39 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
What do you mean by the timing belt stopped spinning? If you had removed the upper cover to check the timing belt, then you have a failed timing belt.

If it is the alternator belt that has stopped spinning, you could have a seized bearing somewhere along the belt drive line or a bad harmonic damper.
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Monday, November 14th, 2011 AT 6:24 PM

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