Is it my alternator or my spark plugs?

[mark0101]

these are the problems I am having.

1. My neon tailight isn't working with the car off but flashes and turns off. I am guessing that the light isn't getting enough power because when I turn the car on it works fine.

2. when I was driving my car, all my interior lights shut off but I was still able to drive home. This happened two times while I was driving. (I read that if the battery is low, it will shut off the interior lights and keep the ones you really need on to conserve battery.

3. I have 108,000 miles with original spark plus, would this be enhancing this problem?

I am really thinkins its my alternator but The thing is, I just replaced it like 2 months ago for $300 I am gonna go to the guy who changed it and let him know that he needs to replace it. BTW the battery was also new after I got the alternator replaced.

Oh forgot to tell you, its my 97 Mark VIII

 

[ford nut]

I would get a reman Alt. form max.
I assume your Alt. was reman ? From some ABC part store ?
I had a local rebuilder do my stock Alt. it went to crap on me right away.
Went to max no problems since.

 

[mark0101]

well it has a lifetime warrenty so I am going to get it from him.

 

[Rich88LSC]

The neon sounds like a bad ballast. It is common for them to flash for a second when they go bad. Do a search for more info.

Does the battery light come on? Does the car run ruff when this happens?

 

[luxuryrules]

Have both the battery and alternator removed and bench tested. Be prepared to replace both.

For your alternator, check out a brand new unit from paperformance.com

 

[mespock]

Like we said last night Most likely it's the Alt. You can get it tested at most parts stores.

Rebuilts can die fast it's a crap shoot with them. I have one that I've been running for 4 years... I've also had one died in a few months.

Contact GMAN about how to fix the neon tail light if it's not working. He found a way to make it all good again and affordable.