High Voltage problems.... - Toyota FJ Cruiser Forum
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#1 (permalink) Old 03-01-2013, 12:18 PM
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High Voltage problems....

I just bought a 2007 Fj Cruiser and I was out driving the other night and my stereo shut of then turned back on and all my dash lights came on (ABS TRACTION CONTROL VSC) and i stoped and shut it off and turned it back on and they went off so i kept driving but the next day goin to work it did it again but this time i noticed the in dash volt meter was way higher than normal and it would go up the higher the rpms got. So what do you guys think it is? Voltage regulator maybe? Or bad battery? Or bad alternator? And is the voltage regulator built into the alternator?
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#2 (permalink) Old 03-01-2013, 12:29 PM
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Re: High Voltage problems....

welcome.

you need to test the battery voltage and see what it is putting out.

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#3 (permalink) Old 03-01-2013, 12:54 PM
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Re: High Voltage problems....

Quote:
Lmmmmm previously said: View Post
welcome.

you need to test the battery voltage and see what it is putting out.
Well it only does it for a couple min then goes back to normal... ive tried testing it while it was high but i never can get pulled over before it starts working fine again
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#4 (permalink) Old 03-01-2013, 12:57 PM
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Re: High Voltage problems....

Bad battery more than likely. That high voltage is indicative of that.

Pull it out and get it load tested.

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#5 (permalink) Old 03-01-2013, 04:32 PM
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Re: High Voltage problems....

Quote:
Vegas_Nick previously said: View Post
Bad battery more than likely. That high voltage is indicative of that.

Pull it out and get it load tested.
I took it out and had it tested on a battery tester and it read good but i put it on the load tester and it was good until we put the actual load on to it then it went bad but we retried it and it read good but it was smelling kinda funny and sounded like something was sparking and it kinda looked like the battery was disformed so i got a new one... hope this works
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#6 (permalink) Old 03-01-2013, 06:32 PM
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Re: High Voltage problems....

Six years old, maybe seven if its the factory battery, way overdue....
In AZ I trade mine out at 3 years just to be safe, the heat really kills them....
Hope it worked, check back in on it....

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#7 (permalink) Old 03-05-2013, 07:02 PM
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Re: High Voltage problems....

So the new battery seems to have fixed the problem so far.... but new question..... Is there anyone who lives near me (Green River Wy) that has done those hacks for A-Trac and traction control and rear lockers and all that stuff that could help me cuz im freaking lost with all the threads ive read!
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#8 (permalink) Old 03-06-2013, 02:16 PM
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Re: High Voltage problems....

You may want start a new thread in the Regional forum or the Electrical forum to get a better response.

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#9 (permalink) Old 12-08-2013, 01:39 PM
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Re: High Voltage problems....

Quote:
boshgr previously said: View Post
I just bought a 2007 Fj Cruiser and I was out driving the other night and my stereo shut of then turned back on and all my dash lights came on (ABS TRACTION CONTROL VSC) and i stoped and shut it off and turned it back on and they went off so i kept driving but the next day goin to work it did it again but this time i noticed the in dash volt meter was way higher than normal and it would go up the higher the rpms got. So what do you guys think it is? Voltage regulator maybe? Or bad battery? Or bad alternator? And is the voltage regulator built into the alternator?
I had the same problem the other night. My battery gauge was reading higher than normal and fluctuating. Also notice my dash lights and headlights flickering. Then once all my warning lights came on for a second. So I hooked up my DMM and watched it while i had the car running. The voltage was reading 13.7 volts but would go up to 15 volts at times. At first I thought it was a bad alternator putting on too much voltage. But turns out my 1 year Sears PM1 was bad.
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