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1995 Geo Metro power issue

Tiny
JBENZ2679
  • MEMBER
  • 1995 GEO METRO
  • 1.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 209,000 MILES
In the post two years I replace the alternator and battery at least a half dozen times and currently in having trouble keeping the battery charged the senator is fine and the battery is fine but after driving a while I notice my radio cut out then my turn snakes get dim I also took and upgraded the cable going from battery to alternator to a four gauge but I can't figure it out my thought is either a short in the CPU or maybe in the ignition but I wanted a professionals thoughts
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Thursday, March 26th, 2015 AT 10:36 AM

15 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Have you checked the alt output?
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Thursday, March 26th, 2015 AT 11:01 AM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
Yes it is reading where it should be
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Thursday, March 26th, 2015 AT 1:10 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If it is charging, there must be a draw on the battery all the time. Have you checked that?
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Thursday, March 26th, 2015 AT 6:53 PM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
I dont know what could possibly be drawing on the battery how would I find out if that is the case
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Friday, March 27th, 2015 AT 2:34 AM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
I noticed this morning after charging the battery for ten hours on a 6 amp medium charge that when I was in neutral on my way to work out would idle high and the idle would fluctuate down I have recently replaced the throttle positioning sensor to correct the outside problem but it only happens when I'm having this power issue and I have recently replaced the map sensor
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Friday, March 27th, 2015 AT 3:45 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Do me a favor. Run this test and let me know the results.

https://www.2carpros.com/articles/car-battery-dead-overnight
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Friday, March 27th, 2015 AT 5:32 AM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
OK I will try this on a spyware question my wife has a 2002 Nissan Sentra and I went to change the spark plugs and they will only turn counter clock wise half a turn what should I do to change the plugs
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Friday, March 27th, 2015 AT 6:06 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Is every plug the same?
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Friday, March 27th, 2015 AT 9:56 PM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
Yes the same for each plug
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Saturday, March 28th, 2015 AT 3:45 PM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
I notice that when I turn my headlights on my idle starts to jump could my headlight switch be bad how would I test that
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Thursday, April 2nd, 2015 AT 4:21 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Were you able to get the plugs out? As far as the lights, that doesn't sound like a switch problem. It may have something to do with a ground issue. Check main grounds to make sure they are clean, tight, and free of corrosion.
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Thursday, April 2nd, 2015 AT 7:39 PM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
The plugs issue was about my wife's car and I haven't tried yet been working alot lately my only down time is on Sunday usually I will check ground issue probably will just replace cable and clean up where they connect
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Friday, April 3rd, 2015 AT 3:59 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
I know how you feel. I had 42 hours in at work by Wednesday. Ugh! Let me know what you find.
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Friday, April 3rd, 2015 AT 10:59 AM
Tiny
JBENZ2679
  • MEMBER
  • 23 POSTS
So I replaced the ground going to the frame and the one that bolts to the transmission and still while I'm driving with the headlights on the idle jumps back and forth from 1.5 - 2 rpms until I come to a complete stop then it drops back to normal
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Thursday, April 9th, 2015 AT 4:39 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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The only thing I can think of is the IAC.
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Thursday, April 9th, 2015 AT 8:30 AM

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