Ok on my 99 coupe im having this flickering problem with all the lights, headlights, interior lights, ect. everytime I hit the brakes.? Bad ground? I just replaced the battery and my amp meter inside the car is reading a little over 13, so I guess it wouldnt be my alternator, or would it. Had the same problem a long time ago and it went away and now its back. Someone please help me fix this problem, I have people flashing me back cause my lights are flickering, kinda annoying!

 

Probably bad connection at terminal, at least that is what my problem was
What kind of battery did you replace it with, if I may ask?

 

I have same thing on mine, checked battery, alternator connections, no help.

 

Duralast Gold. Good or bad decision? It didnt happen tonight, weird.?.? Go figure! Thanks for the help look at it tomorrow. If anything else it could be please let me know!

 

Let me just state that I bought an exide orbital,gel type battery so as not to have any "leaky" issues.
The reason I asked was to see if you bought the same kind or not, just kinda a hunch,but you did not. But since you said it happened AFTER you changed your battery, I thought it may apply..

At any rate, with this battery, I had the following problem,,,which caused my flickering issue.

The tapped bolt holes on the terminal were not deep enough to allow a positive connection with the battery. I tightened it more and more but it did not make it tighter.It was enough to start/run/charge and drive the car,,,but lights would flicker.

I struggled with this for a while because I knew it was tight, but I had never previously changed a battery in a c-5. And in my haste to take the battery out I did not pay that much attention to how... "tight", if you will, the connections were.

Once it was as tight as I could get it, you could still reach down and grab the cable and rotate it with relative ease. All because the holes were not deep enough..

I would have never guessed this would even be a possibility,I mean,these are universal batteries for cry'n out loud

So, I had to add a copper washer to the mix, ....no more problems.

If this is not your problem,it is probably a ground problem somewhere

 

Isn't there something about the power going out as alien spacecraft fly over you?

 

Thanks for the info, I'll go check that out and hopefully it wil fix my problem, if not looks like a long weekend at the shop

 

just having the same issue. Light flickering after battery change, exide orbital, side post, cable moving around easily, I thought I was normal, even though strange. Your post confort me in thinking it is not normal. Thank you sharing your experience with details. I'll come back to confirm it is solved.
TCFS

 

problem solved . Attention! if you want to use Exide (Ex900) or Tudor (Tx900 maxxima) battery in Scandinavia, Sweden. The hole of the side posts of the battery are less than 1mm too short, which make the contact unreliable, causing some issues, one of them is flickering. Opening the headlight door was a second one for me.
a washer and it is solved!
TCFS

 

Thanks for posting the solution.
Note that FSM battery terminal torque is 11 foot pounds, not that you can get a torque wrench in there-

 

So glad I was able to help someone. It is a bit of a weird/sneaky issue which( makes you sound like an idiot..lol) took some time to figure out, But it definitely worked out...for both of us! Awesome!