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Intermittent Electrical Problems

Posted: Wed Nov 29, 2006 6:50 pm
by El Kahone
Hi!

I've been having some (presumably) electrical problems with my '91 Legacy LSi. For some time, It's been idling strangely, chigging and sounding like it wants to die almost every time I stop. Last week, I had to replace a headlight, and a few days ago, my dashboard lights went out. Since then, sometimes my dash lights come on all the way, sometimes they are very dim, and sometimes, they are completely dark. It doesn't seem to make any difference if the headlights are on or not. Finally, this morning, my taillights didn't come on. (It should be noted that it's been about 18 degrees Farenheit since last night, with quite a bit of snow.) I've had the wiring checked by a mechanic and he couldn't find anything wrong. There wasn't time to check anything else, so I'm posting here to see if anyone has any ideas.

Any advice would be greatly appreciated.

Posted: Wed Nov 29, 2006 6:56 pm
by El Kahone
Almost forgot -- My automatic mirrors also only function intermittently, and have been for some time.

Posted: Wed Nov 29, 2006 8:50 pm
by Manarius
Alternator been replaced recently? Sounds like you're not getting enough juice.

Posted: Wed Nov 29, 2006 10:08 pm
by El Kahone
No, it hasn't. I guess I'll try that next, unless anyone's got a better idea. Thanks.

Posted: Thu Nov 30, 2006 1:33 pm
by Manarius
Make sure all your belts and connections are tight as well.

Posted: Fri Dec 01, 2006 1:11 am
by Legacy777
I'd suspect alternator as well.

Take it to autozone or a similar autoparts store and let them test it. They should be able to test it on the car.

Posted: Sat Dec 02, 2006 3:00 am
by IronMonkeyL255
But the on-car tests aren't always accurate. I had 2 autozones and one advance auto tell me mine was good when I was having issues.

If you know of a local alternator/starter specialist shop, I would recommend bringing it in for them to bench test.

Posted: Sat Dec 02, 2006 3:28 am
by Legacy777
IronMonkeyL255 wrote:But the on-car tests aren't always accurate. I had 2 autozones and one advance auto tell me mine was good when I was having issues.

If you know of a local alternator/starter specialist shop, I would recommend bringing it in for them to bench test.
Agreed. The on-car tests don't always come back correctly. I had that happen as well, but it's a good start.