alternator replacement
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Junior User
Joined: Nov 2003
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alternator replacement
need some help to determine if my alternator needs replacing. I have a 1992 XLT, 3.0 V-6, 5 speed, 2 dr, 155k miles. For the last 2 1/2 - 3 years the amp meter gauge has wiggled from side to side while idling and the headlights flicker and I can hear the electric fuel pump speed fluctuations that follow the amp gauge fluctuations. At higher rpms it stabilizes out and I don't see this although here lately it does it lightly at highway speeds. I have had Autozone check it out with their meters and they say it's charging normally.
Should I change it out preventively, or could it be another problem that I'm not aware of?
thanks much for your input.
xltdawg
Should I change it out preventively, or could it be another problem that I'm not aware of?
thanks much for your input.
xltdawg
Cargo Master
Joined: Aug 2003
Posts: 3,237
Likes: 3
From: Belleville, Ontario
Had a similar problem in a work truck. Bouncing needle, flickering lights is a problem with the voltage regulator (if idle speed is correct). This went on for 18 months and just quit last week-end.
Now you're getting the fluctuations at speed too.
Change the alternator and have done with it because there's no way of telling when it will quit.
AL.
Now you're getting the fluctuations at speed too.
Change the alternator and have done with it because there's no way of telling when it will quit.
AL.
Senior User
Joined: Mar 2004
Posts: 431
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From: stevens point
i toook my truck to autozone to see if my alternator was shot and they hooked up this wheeler dinger cart thinger and tested my alternator for free. i dont see why they couldnt do that for yours!?
woops sorry i didnt read the rest of the first reply! my bad!
woops sorry i didnt read the rest of the first reply! my bad!
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Junior User
Joined: Nov 2003
Posts: 55
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one more question...it's been a while since I've had to replace an alternator, so where's the best automotive place to buy one and should I get a brand new one or will a rebuilt one do? I was considering Autozone, but if anyone has a better suggestion please let me know.
thanks
thanks
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