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 97 Montero - Brake, A/T, Battery light Blinking
#1056946
02/12/13 04:11 PM
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Joined: Feb 2013
Posts: 7
OP
Need a Spot
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Hi Everyone,
Was wondering if anyone can help me diagnose an issue I am having. I have a 97 Montero with 180k miles on it. Recently (past 2 months) the Battery, Brake, and A/T lights have been blinking intermittenly on my dashboard. The car starts and runs perfectly fine and has been driven regularly the past 2 months that this has been going on. I had the battery and alternator tested and they come out good.
At this point, I am out of ideas as to what it can possibly be so any suggestions would be highly appreciated.
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: kpytoi9]
#1056947
02/12/13 05:15 PM
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Joined: Apr 2008
Posts: 441
Mudrunner
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Man I don't know maybe a bad ground some where I would make sure the motor and ecu are grounded well.
1997 Montero LS with a motor swap a 1990 V6 12valve ported heads full 2.5in Ex I run stock tire size for Daily use, off road have 33x12.5 working on going trubo.
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: TainterRacing]
#1056948
02/12/13 07:55 PM
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Joined: Feb 2005
Posts: 1,511
Body Damage is Cool
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Those symptoms are generally an indicator of the alternator not charging. In addition to checking your grounds, check your battery cables for corrosion and good connections at both the battery and alternator. You might also check your alternator belt for condition and proper tension, an intermittently slipping belt could cause your symptoms. The problem could also be in the alternator itself - an intermittent short or some other weird internal problem. That would be hard to diagnose unless you can catch it while it's happening.
95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: ryany]
#1056949
02/12/13 08:11 PM
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Joined: Feb 2013
Posts: 7
OP
Need a Spot
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I have checked my battery cables and they were all replaced as originally I thought that they were the culprit. I will check the belt to see if its slipping or not. I dont mind replacing the alternator, just want to avoid the cost in the event its not the problem.
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: kpytoi9]
#1056950
02/12/13 09:57 PM
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Joined: Jan 2000
Posts: 16,227
Web Wheeler
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Also have your battery and alternator tested. Even new they can be bad. <img src="/forums/images/graemlins/kewl.gif" alt="" />
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: off-roader]
#1056951
02/13/13 12:00 AM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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Intermittent short in the alternator, probably. Have it tested asap. A shorted alternator can fry lots of stuff.
Not responsible for advice not taken...
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: fasteddy]
#1056952
02/13/13 01:28 AM
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Joined: Feb 2013
Posts: 7
OP
Need a Spot
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According to my local Firestone, its not the alternator, the battery, or the battery cables.
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Re: 97 Montero - Brake, A/T, Battery light Blinking
[Re: kpytoi9]
#1056953
02/13/13 02:35 AM
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Joined: Jun 2004
Posts: 1,513
Body Damage is Cool
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I would guess it's the.... ALternator. When it has a bad Diode. The will put out a charge, but not enough. They need to test alternator again- Needs to be putting out around 14 volts. If your local Auto store tests it and see 12-13. If you turn lights/AC etc the volts will drop. Test it again with stuff pulling juice... <img src="/forums/images/graemlins/kewl.gif" alt="" />
1990 Black Monty LS Over 300K' 1993 Isuzu Rodeo LS 4x4 46k (yes only 46K!)1989 Honda Transalp 600 Africa twin,
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